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NiSource

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FY2023 Annual Report · NiSource
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Driving Consistent Execution, Growth and Value

N I S O U R C E   2 0 2 3   A N N U A L   R E P O R T

What’s Inside

MESSAGE FROM OUR PRESIDENT & CHIEF EXECUTIVE OFFICER

MESSAGE FROM OUR CHAIR

BOARD OF DIRECTORS, SENIOR MANAGEMENT TEAM 
AND DIVERSITY STATS

SCHEDULE 1

STOCKHOLDER INFORMATION

COMPANY INFORMATION

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 7

8

INSIDE BACK COVER

BACK COVER

A MESSAGE FROM OUR PRESIDENT & CHIEF EXECUTIVE OFFICER

Lloyd Yates

As a trusted energy partner, we are committed to putting our shareholders, customers, 
employees and the communities we serve at the forefront of everything we do. The 
numerous achievements of 2023 would not be possible without a clear strategy and 
strong, consistent execution by our employees and business partners. They enable us to 
deliver safe, reliable energy that drives value to our customers across six states.

In 2023 the NiSource team:

•  Executed on the financial plan we outlined at our November 2022 Investor Day, 
including delivering full-year earnings at the top end of our increased 2023 
guidance range, supported by a superior regulatory and stakeholder foundation that 
differentiates us from our peers.

•  Completed a 19.9% indirect equity interest transaction for the company’s Northern 
Indiana Public Service Company LLC (“NIPSCO”) subsidiary with an affiliate of 
Blackstone Infrastructure Partners. The transaction provides NiSource with a stronger 
balance sheet and financing flexibility to support our long-term investment strategy and 
allows us to both optimize cost of capital for customers and ultimate return on capital 
for our shareholders.

1

• 

Invested a record $3.6 billion to drive enhanced safety, 
reliability, modernization and decarbonization for our 
customers and communities.

•  Delivered on our commitment to maintain flat operating 
and maintenance expenses, fueled by our continuous 
improvement efforts – generating efficiencies by 
doing things safer, better, more efficiently and with 
less cost. These areas of focus help fuel our ability to 
achieve operational excellence and support our goal 
of maintaining a safety and people-first mindset, in 
addition to driving industry-leading, risk-informed asset 
management capabilities across our gas and electric 
operations.

•  Extended our financial plan to 2028, with non-GAAP 
Net Operating Earnings per Share (NOEPS) growth 
expected to be 6-8% annually, driven by $16 billion 
in expenditures and 8-10% annual rate base growth 
through 2028. This increases the capital investments 
projected over the next five-year window by $1 billion 
vs. the 2022-2027 prior plan.

•  Significantly improved safety performance by 

delivering a 14% reduction in Days Away, Restricted 
or Transferred (DART), and are on a path to achieving 
our goal of top-decile performance. Additionally, we 
recorded a 16% reduction in Preventable Vehicle 
Collisions (PVCs).

•  Strategically invested in our energy infrastructure in 
a way that will enable us to meet our 2040 net zero 
commitments as the future of energy evolves, while 
enhancing energy diversification and resilience. For 
example, in October we launched a multi-phase 
hydrogen blending project – one of the first in the 
United States to use a blending skid in a controlled 
setting to mix hydrogen and natural gas at precise 
levels to determine optimal blend percentages and 
their environmental and consumer benefits.

•  Hosted the company’s annual Supplier Diversity Day, 
an event designed to provide diverse suppliers with 
information, contacts and support that will strengthen 
their ability to access NiSource business opportunities. 
The day was launched as part of NiSource’s larger 
commitment to increase diverse supplier spending 

2

to 25% by the year 2025, ensuring our supply chain 
better reflects the customers and communities we 
serve.

•  Released our inaugural 2023 Environmental, Social 
and Governance (ESG) Report, Building Trust for a 
Sustainable Energy Future. The report highlights how 
our ESG objectives have been established as part of 
our overall corporate strategy, and how this framework 
is successfully aligning us with our business partners, 
customers, employees and the communities we serve.

•  Ranked above industry average in overall customer 
satisfaction in JD Power’s 2023 Year-end Gas 
Residential Satisfaction Study across our Columbia 
Gas and NIPSCO businesses. Columbia Gas of 
Virginia is NiSource’s top-rated brand and ranked 5th 
in the nation in overall satisfaction. Columbia Gas 
of Kentucky was ranked 1st in the Midwest Midsize 
segment.

•  Recognized by TIME Magazine as one of the 

World’s Best Companies; named one of the Best 
Employers for Diversity by Forbes; reaffirmed to the 
FTSE4Good Index Series; named to the S&P Dow 
Jones Sustainability Indices for the 10th consecutive 
year; and received the SAP Innovation Award in the 
industry leader category for using digitization to serve 
customers.

We have a clear roadmap for executing and achieving 
our long-term growth plan. Our commitment to investors, 
employees, customers and regulators is central to 
everything we do and remains the driving force of this 
company. We look forward to expanding these efforts 
across the organization in 2024 as a trusted and premier 
utility company, and I am confident the NiSource team is 
prepared to deliver.

WE LOOK FORWARD TO  
CONTINUED SUCCESS IN 2024

THANK YOU

3

A MESSAGE FROM OUR CHAIRMAN

Kevin Kabat

EXECUTING ON  
OUR COMMITMENTS

2023 was a demonstration of strong, 
consistent execution on our business 
and financial commitments. The external 
environment presented economic and 
market volatility, but – in the spirit of 
doing what we say we are going to do 
– NiSource navigated these various 
challenges and delivered on our 
commitment and mission to advance our 
goal of delivering safe, reliable energy 
that drives value to our customers.

As a trusted, reliable energy partner, 
ensuring the safety of our customers, 
employees and communities is at  
the forefront of everything we do. In 
2023, leaders across our organization 
conducted more than 53,000 field 
observations, reinforcing safety 
processes and providing coaching to our 
field employees, while holding each other 
accountable to perform with excellence 
and do the right things to keep the public 
and our employees safe above all else.

We are focused on affordability for our 
customers while delivering efficient, 
reliable and sustainable solutions that 
customers depend on. 

In 2023, we began our five-year, 
approximately $1 billion transformation 
project with an initial $300 million 
investment in an SAP and Salesforce 

technology platform implementation. The 
project will drive operational efficiencies 
through standardized work practices 
and systems for our field employees, 
enhance access to safety and system-
related information, and improve service 
to our customers. NiSource’s continuous 
improvement efforts also remained on 
track, generating efficiencies by enabling 
us to do things safer, better, more 
efficiently and with less cost. 

All of this is expected to contribute to 
continued safety and customer service 
enhancements, while keeping total 
customer bill levels generally in line with 
inflation over our five-year financial plan.

Many of the self-service digital offerings 
NiSource provides are designed not 
only to enhance the experience for our 
valued customers but also to lower 
operating expenses to keep customers’ 
bills manageable. In 2023, NIPSCO 
was the highest-ranked utility in the 
U.S. and Canada by ESource’s Website 
Benchmark Study for user experience 
of utility websites accessed from 
mobile devices and desktop computers. 
Columbia Gas of Ohio ranked fourth 
overall in the same category. NiSource 
also received the SAP Innovation Award 
in the industry leader category for using 
digitization to serve customers.

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These achievements would not be  
possible without our dedicated 
employees and their commitment to our 
valued customers, communities and all 
NiSource stakeholders.

In response to climate transition risks and 
opportunities, we continued toward our 
goal of achieving net zero greenhouse 
gas emissions (GHG) from our operations 
by 2040 – also referred to as Scope 1 
and Scope 2 emissions. Our net zero 
goal builds on GHG emission reductions 
achieved to date and demonstrates 
the ongoing execution of our long-term 
business plan aimed at driving further 
GHG reductions. We remain on track to 
achieve previously announced interim 
GHG emission reduction targets by 
reducing fugitive methane emissions 
from main and service lines by 50% from 
2005 levels by 2025 and reducing Scope 
1 GHG emissions from company-wide 
operations by 90% from 2005 levels by 
2030.

We are strategically investing in our 
energy infrastructure in a way that 
will enable us to meet our customer 
commitments as the future of energy 
evolves, while enhancing energy 
diversification and resilience. In 2023, 
Columbia Gas of Pennsylvania partnered 
with EN Engineering to construct a 
hydrogen blending skid, which allows for 
the controlled blending of hydrogen into 
natural gas at the company’s Training 
Center’s Safety Town in Monaca, 
Pennsylvania.

To demonstrate the efficacy of the 
blended fuel, we built a specially 
designed on-site model home equipped 
with natural gas appliances to simulate 
everyday usage in a residential home 
environment. Ongoing field confirmations 
are evaluating hydrogen’s effect on the 

natural gas itself, equipment, piping, and 
the net change in carbon emissions from 
blending, with favorable results.

In addition to the steps we are taking 
toward our goal of net zero GHG 
emissions by 2040, NiSource was the 
only utility parent company to earn an 
“A” grade in the Sierra Club’s 2023 
report on the clean energy transition 
and was named to the S&P Dow Jones 
Sustainability Indices for the 10th 
consecutive year.

We remain on track to retire 100% of 
coal assets by 2028 and replace them 
primarily with renewables. All the 
company’s renewable wind and solar 
projects remain on target. Our first 
two Indiana-based solar Build-Transfer 
Agreement (BTA) projects – Indiana 
Crossroads Solar and Dunns Bridge I –  
are in service, producing more cost-
effective, cleaner energy for homes and 
businesses across the state. In addition, 
the Indiana Crossroads Wind II Power 
Purchase Agreement (PPA) project was 
completed in 2023. Two additional solar 
BTA projects and one additional solar 
PPA project are on track to be completed 
in 2024.

To support our ability to serve customers, 
strengthen our balance sheet and fund 
ongoing capital needs associated with 
the renewable generation transition 
underway, we announced the completion 
of a 19.9% indirect equity interest 
transaction for NIPSCO with an affiliate 
of Blackstone Infrastructure Partners, 
the dedicated infrastructure group of 
Blackstone Inc.

We delivered full-year earnings at the 
top end of our 2023 guidance range and 
extended our financial plan through 2028, 
demonstrating strong and consistent 

5

execution since the initiation of our plan one year ago, as well as the resilience and 
duration of NiSource’s fundamental drivers. 

2023 completes another strong year building upon our track record of consistent 
execution and growth and provides a positive outlook for all that is to come in 2024.

On behalf of the Board of Directors, thank you for your continued support as we remain 
committed to serving our customers, employees and communities as a trusted and 
reliable energy partner.

6

BOARD OF DIRECTORS

SENIOR MANAGEMENT TEAM

Kevin T. Kabat 
Chairman of the Board, NiSource Inc., and 
Retired Vice Chairman and CEO, Fifth Third 
Bancorp

Peter A. Altabef 
Chairman and CEO, Unisys Corporation

Sondra L. Barbour 
Retired Executive Vice President, Information 
Systems & Global Solutions, Lockheed Martin 
Corporation

Theodore H. Bunting, Jr. 
Retired Group President, Utility Operations, 
Entergy Corporation

Eric L. Butler 
President and CEO, Aswani-Butler Investment 
Associates, and Retired Executive Vice 
President, Union Pacific Corporation

Lloyd M. Yates 
President and Chief Executive Officer

Shawn Anderson 
Executive Vice President and  
Chief Financial Officer

Melanie Berman 
Chief Human Resources Officer and 
Senior Vice President, Administration 

Melody Birmingham 
Executive Vice President and  
President, NiSource Utilities

Kimberly S. Cuccia 
Senior Vice President, General Counsel and  
Corporate Secretary

William (Bill) Jefferson 
Executive Vice President, Chief Operating and  
Safety Officer

Deborah A. Henretta 
Partner, G100 Companies, and Retired Group 
President, Procter & Gamble Co.

Michael Luhrs 
Executive Vice President, Strategy and Risk and  
Chief Commercial Officer

SENIOR MANAGEMENT TEAM 
DIVERSITY STATS

7 Total 
57% Men, 43% Women 
43% Ethnically Diverse

Deborah A. P. Hersman 
Retired Chair, National Transportation Safety 
Board

Michael E. Jesanis 
Co-founder and Former Managing Director, 
HotZero, LLC, and Retired President and 
CEO, National Grid USA

William D. Johnson 
Retired President and CEO, Pacific Gas and 
Electric

Cassandra S. Lee 
Chief Audit Executive, AT&T Inc.

John McAvoy 
Retired President and CEO, Consolidated 
Edison, Inc. and Retired CEO, Consolidated 
Edison Company of New York, Inc.

Lloyd M. Yates 
President and CEO, NiSource Inc.

BOARD OF DIRECTORS  
DIVERSITY STATS 

12 Total  
67% Men, 33% Women 
33% Ethnically Diverse

ALL INFORMATION ON THIS PAGE IS AS OF APRIL 1, 2024.

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SCHEDULE 1

Reconciliation of Consolidated Net Income (Loss) Available to Common Shareholders to Net Operating 
Earnings (Loss) Available to Common Shareholders (Non-GAAP)

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K 

☑

☐

          ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 2023 

OR

          TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) 

OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from              to             

Commission file number 001-16189 
NiSource Inc. 
(Exact name of registrant as specified in its charter)

DE

(State or other jurisdiction of
incorporation or organization)

801 East 86th Avenue
Merrillville, IN

(Address of principal executive offices)

35-2108964

(I.R.S. Employer
Identification No.)

46410
(Zip Code)

(877) 647-5990 
(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Common Stock, par value $0.01 per share

Title of Each Class

Depositary Shares, each representing a 1/1,000th ownership interest in a share of 6.50% Series B 
Fixed-Rate Reset Cumulative Redeemable Perpetual Preferred Stock, par value $0.01 per share, 
liquidation preference $25,000 per share and a 1/1,000th ownership interest in a share of Series 
B-1 Preferred Stock, par value $0.01 per share, liquidation preference $0.01 per share

Securities registered pursuant to Section 12(g) of the Act:     None

Trading 
Symbol(s)

NI

NI PR B

Name of Each Exchange on 
Which Registered

NYSE

NYSE

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.   Yes þ   No ¨

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act.   Yes ¨   No þ

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act 
of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject 
to such filing requirements for the past 90 days.
Yes þ   No ¨

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 
405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to 
submit such files).
Yes þ   No ¨

Indicate  by  check  mark  whether  the  registrant  is  a  large  accelerated  filer,  an  accelerated  filer,  a  non-accelerated  filer,  a  smaller  reporting 
company, or an emerging growth company. See the definition of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and 
"emerging growth company" in Rule 12-b-2 of the Exchange Act.

Large accelerated filer þ  

Accelerated Filer ¨		Emerging Growth Company ☐		Non-accelerated Filer ¨	 Smaller Reporting Company ☐	

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with 
any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ 
Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its 
internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting 
firm that prepared or issued its audit report.  ☑ 
If  securities  are  registered  pursuant  to  Section  12(b)  of  the  Act,  indicate  by  check  mark  whether  the  financial  statements  of  the  registrants 
included in the filing reflect the correction of an error to previously issued financial statements. ☐
Indicate  by  check  mark  whether  any  of  those  error  corrections  are  restatements  that  required  a  recovery  analysis  of  incentive-based 
compensation received by any of the registrant's executive officers during the relevant recovery period pursuant to §240. 10D-1(b).☐

 
 
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).  Yes ☐  No þ
The  aggregate  market  value  of  the  registrant's  common  stock,  par  value  $0.01  per  share  (the  "Common  Stock")  held  by  non-affiliates  was 
approximately $11,285,281,624 based upon the June 30, 2023, closing price of $27.35 on the New York Stock Exchange.

There were 447,524,529 shares of Common Stock outstanding as of February 14, 2024.

Documents Incorporated by Reference

Part III of this report incorporates by reference specific portions of the Registrant’s Notice of Annual Meeting and Proxy Statement relating to 
the Annual Meeting of Stockholders to be held on May 13, 2024.

Page
No.

3

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55

56

CONTENTS

Defined Terms

Part I

Item 1.

Business      ..............................................................................................................................................

Item 1A.

Risk Factors   .........................................................................................................................................

Item 1B.

Unresolved Staff Comments     ...............................................................................................................

Item 1C.

Cybersecurity    ......................................................................................................................................

Item 2.

Properties     ............................................................................................................................................

Item 3.

Legal Proceedings    ...............................................................................................................................

Item 4 

Mine Safety Disclosures    .....................................................................................................................

Item 5.

Market  for  Registrant’s  Common  Equity,  Related  Stockholder  Matters  and  Issuer  Purchases  of 
Equity Securities

Item 6.

Reserved   ..............................................................................................................................................

Item 7.

Management’s Discussion and Analysis of Financial Condition and Results of Operations    .............

Item 7A.

Quantitative and Qualitative Disclosures About Market Risk    ............................................................

Item 8.

Financial Statements and Supplementary Data   ...................................................................................

Item 9.

Changes in and Disagreements With Accountants on Accounting and Financial Disclosure     ............

120

Item 9A.

Controls and Procedures   .....................................................................................................................

120

Item 9B.

Other Information ................................................................................................................................

122

Item 9C.

Disclosure Regarding Foreign Jurisdictions that Prevent Inspections   ................................................

122

Item 10.

Directors, Executive Officers and Corporate Governance    ..................................................................

123

Item 11.

Executive Compensation  .....................................................................................................................

123

Item 12.

Security  Ownership  of  Certain  Beneficial  Owners  and  Management  and  Related  Stockholder 
Matters     ................................................................................................................................................

123

Item 13.

Certain Relationships and Related Transactions, and Director Independence   ....................................

123

Item 14.

Principal Accounting Fees and Services      .............................................................................................

123

Item 15.

Exhibits, Financial Statement Schedules    ............................................................................................

124

Item 16.

Form 10-K Summary  ..........................................................................................................................

130

Signatures

131

2

Part II

Part III

Part IV

 
 
 
The following is a list of frequently used abbreviations or acronyms that are found in this report:

DEFINED TERMS

NiSource Subsidiaries and Affiliates (not exhaustive)

Columbia of Kentucky     ..............................................................

  Columbia Gas of Kentucky, Inc.

Columbia of Maryland     ..............................................................

  Columbia Gas of Maryland, Inc.

Columbia of Massachusetts    .......................................................

  Bay State Gas Company

Columbia of Ohio       ......................................................................
Columbia of Pennsylvania  .........................................................

  Columbia Gas of Ohio, Inc.

  Columbia Gas of Pennsylvania, Inc.

Columbia of Virginia     .................................................................

  Columbia Gas of Virginia, Inc.

NIPSCO     .....................................................................................
NIPSCO Holdings I  ................................................................... NIPSCO Holdings I LLC
NIPSCO Holdings II   .................................................................. NIPSCO Holdings II LLC
NiSource ("we," "us" or "our")   ..................................................
Rosewater      .................................................................................. Rosewater Wind Generation LLC and its wholly owned 

  Northern Indiana Public Service Company LLC

  NiSource Inc.

Indiana Crossroads Solar    ...........................................................

Indiana Crossroads Wind     ..........................................................

subsidiary, Rosewater Wind Farm LLC
Indiana Crossroads Solar Generation LLC and its wholly 
owned subsidiary, Meadow Lake Solar Park LLC
Indiana Crossroads Wind Generation LLC and its wholly 
owned subsidiary, Indiana Crossroads Wind Farm LLC

Dunns Bridge I     .......................................................................... Dunns Bridge I Solar Generation LLC and its wholly owned 

subsidiary, Dunns Bridge Solar Center LLC

Dunns Bridge II    ......................................................................... Dunns Bridge II Solar Generation LLC
Fairbanks   ................................................................................... Fairbanks Solar Generation LLC
Cavalry      ...................................................................................... Cavalry Solar Generation LLC
Abbreviations and Other

  Allowance for funds used during construction
  Accumulated Other Comprehensive Income (Loss)
  Accounting Standards Codification

AFUDC   ......................................................................................
AOCI     .........................................................................................
ASC     ...........................................................................................
ASU    ........................................................................................... Accounting Standards Update
ATM    .......................................................................................... At-the-market
BIP     ............................................................................................. BIP Blue Buyer L.L.C
Blackstone     ................................................................................. Blackstone Infrastructure Partners L.P.
BTA     ........................................................................................... Build-transfer agreement
CCGT      ........................................................................................ Combined Cycle Gas Turbine
CCRs  ..........................................................................................
CEP   ............................................................................................ Capital Expenditure Program
CERCLA    ...................................................................................

  Coal Combustion Residuals

Comprehensive Environmental Response Compensation and 
Liability Act (also known as Superfund)

CISA     .......................................................................................... Certified Information Systems Auditor
CISO     .......................................................................................... Chief Information Security Officer
CISSP    ........................................................................................ Certified Information Systems Security Professional
Corporate Units       ......................................................................... Series A Corporate Units
COVID-19 ("the COVID-19 pandemic" or "the pandemic")  .... Novel Coronavirus 2019 and its variants, including the Delta 

and Omicron variants, and any other variant that may emerge

CRISC  ........................................................................................ Certified in Risk and Information Systems Control
DE&I      ......................................................................................... Diversity Equity and Inclusion
DPU    ...........................................................................................
  Department of Public Utilities

DSM    ..........................................................................................

  Demand Side Management

3

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
EPA   ............................................................................................

  United States Environmental Protection Agency

DEFINED TERMS

  Earnings per share

EPS    ............................................................................................
Equity Units   ............................................................................... Series A Equity Units
FAC     ...........................................................................................
  Fuel adjustment clause
FASB    ......................................................................................... Financial Accounting Standards Board
FERC     ......................................................................................... Federal Energy Regulatory Commission
FMCA  ........................................................................................ Federally Mandated Cost Adjustment
GAAP    ........................................................................................
GCA    ........................................................................................... Gas cost adjustment
GHG     ..........................................................................................
HLBV     ........................................................................................ Hypothetical Liquidation at Book Value
IIJA     ............................................................................................

  Greenhouse gases

  Generally Accepted Accounting Principles

Infrastructure Investment and Jobs Act
Inflation Reduction Act

IRA    ............................................................................................

IRP     .............................................................................................

  Infrastructure Replacement Program

IRS     .............................................................................................

Internal Revenue Service

IURC  ..........................................................................................
JV   ...............................................................................................
LDCs  ..........................................................................................
LIFO    ..........................................................................................
LIHEAP  ..................................................................................... Low Income Heating Energy Assistance Programs
Massachusetts Business    ............................................................. All of the assets sold to, and liabilities assumed by, 

  Indiana Utility Regulatory Commission
Joint Venture
  Local distribution companies
  Last-in, first-out

MGP    ..........................................................................................
MISO    .........................................................................................
MMDth     ......................................................................................
MW   ............................................................................................ Megawatts
MWh   ..........................................................................................
NERC CIP    ................................................................................. North  American  Electric  Reliability  Corporation  Critical 

Eversource pursuant to the Asset Purchase Agreement
  Manufactured Gas Plant
  Midcontinent Independent System Operator
  Million dekatherms

  Megawatt hours

NIPSCO Minority Interest Transaction   ..................................... A  transaction  between  NiSource,  NIPSCO  Holdings  II  (sole 
owner of NIPSCO) and an affiliate of Blackstone pursuant to 
a purchase and sale agreement entered into on June 17, 2023, 
that  offered  equity  interests  in  NIPSCO  Holdings  II  in 
exchange for capital contributions by the parties.

Infrastructure Protection

NOL      ........................................................................................... Net Operating Loss
NTSB      ......................................................................................... National Transportation Safety Board
NYMEX     .................................................................................... The New York Mercantile Exchange
OPEB      .........................................................................................
OT   .............................................................................................. Operational Technology
PCB   ............................................................................................
PHMSA    ..................................................................................... Pipeline and Hazardous Materials Safety Administration
PPA  ............................................................................................ Power Purchase Agreement
PSC     ............................................................................................
  Public Service Commission
  Public Utilities Commission of Ohio

  Other Postretirement and Postemployment Benefits

  Polychlorinated biphenyls

PUCO     ........................................................................................
ROE     ........................................................................................... Return on Equity
RNG    ........................................................................................... Renewable Natural Gas
ROU    ........................................................................................... Right of Use
SAVE    ......................................................................................... Steps to Advance Virginia's Energy Plan

4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
DEFINED TERMS

Scope 1 GHG Emissions      ........................................................... Direct emissions from sources owned or controlled by us 

(e.g., emissions from our combustion of fuel, vehicles, and 
process emissions and fugitive emissions)

Scope 2 GHG Emissions      ...........................................................

Indirect emissions from sources owned or controlled by us

SEC   ............................................................................................
Section 201 Tariffs     .................................................................... Tariffs imposed by Executive Order from the President of the 

  Securities and Exchange Commission

U.S. on certain imported solar cells and modules at a rate of 
15%, which were recently extended to 2026
  Safety Modification and Replacement Program

SMRP    ........................................................................................
SMS   ........................................................................................... Safety Management System
SOFR    ......................................................................................... Secured Overnight Financing Rate
STRIDE   ..................................................................................... Strategic Infrastructure Development and Enhancement
TCJA  .......................................................................................... An Act to provide for reconciliation pursuant to titles II and V 
of the concurrent resolution on the budget for fiscal year 2018 
(commonly known as the Tax Cuts and Jobs Act of 2017)

TDSIC  ........................................................................................ Transmission, Distribution and Storage System Improvement 

Charge

TSA   ............................................................................................ Transportation Security Administration
U.S. Attorney's Office     ............................................................... U.S. Attorney's Office for the District of Massachusetts
VIE     ............................................................................................ Variable Interest Entity

Note regarding forward-looking statements
This Annual Report on Form 10-K contains "forward-looking statements," within the meaning of Section 27A of the Securities 
Act  of  1933,  as  amended  (the  "Securities  Act"),  and  Section  21E  of  the  Securities  Exchange  Act  of  1934,  as  amended  (the 
"Exchange Act"). Investors and prospective investors should understand that many factors govern whether any forward-looking 
statement contained herein will be or can be realized. Any one of those factors could cause actual results to differ materially 
from  those  projected.  These  forward-looking  statements  include,  but  are  not  limited  to,  statements  concerning  our  plans, 
strategies,  objectives,  expected  performance,  expenditures,  recovery  of  expenditures  through  rates,  stated  on  either  a 
consolidated or segment basis, and any and all underlying assumptions and other statements that are other than statements of 
historical fact. Expressions of future goals and expectations and similar expressions, including "may," "will," "should," "could," 
"would," "aims," "seeks," "expects," "plans," "anticipates," "intends," "believes," "estimates," "predicts," "potential," "targets," 
"forecast," and "continue," reflecting something other than historical fact are intended to identify forward-looking statements. 
All forward-looking statements are based on assumptions that management believes to be reasonable; however, there can be no 
assurance that actual results will not differ materially.

Factors that could cause actual results to differ materially from the projections, forecasts, estimates and expectations discussed 
in this Annual Report on Form 10-K include, among other things:

•
•
•
•

•
•
•
•
•
•
•

•
•

our ability to execute our business plan or growth strategy, including utility infrastructure investments; 
potential incidents and other operating risks associated with our business;
our ability to work successfully with our third-party investors; 
our ability to adapt to, and manage costs related to, advances in technology, including alternative energy sources and 
changes in laws and regulations; 
our increased dependency on technology;
impacts related to our aging infrastructure;
our ability to obtain sufficient insurance coverage and whether such coverage will protect us against significant losses;
the success of our electric generation strategy; 
construction risks and supply risks; 
fluctuations in demand from residential and commercial customers; 
fluctuations in the price of energy commodities and related transportation costs or an inability to obtain an adequate, 
reliable and cost-effective fuel supply to meet customer demand; 
our ability to attract, retain or re-skill a qualified, diverse workforce and maintain good labor relations; 
our ability to manage new initiatives and organizational changes;

5

 
 
•
•
•
•
•
•
•
•

•
•
•

•
•
•
•
•
•
•
•
•
•
•
•

the actions of activist stockholders; 
the performance and quality of third-party suppliers and service providers; 
potential cybersecurity attacks or security breaches; 
increased requirements and costs related to cybersecurity; 
any damage to our reputation;
the impacts of natural disasters, potential terrorist attacks or other catastrophic events;
the physical impacts of climate change and the transition to a lower carbon future; 
our  ability  to  manage  the  financial  and  operational  risks  related  to  achieving  our  carbon  emission  reduction  goals, 
including our Net Zero Goal (as defined below); 
our debt obligations; 
any changes to our credit rating or the credit rating of certain of our subsidiaries; 
adverse economic and capital market conditions, including increases in inflation or interest rates, recession, or changes 
in investor sentiment; 
economic regulation and the impact of regulatory rate reviews; 
our ability to obtain expected financial or regulatory outcomes; 
economic conditions in certain industries; 
the reliability of customers and suppliers to fulfill their payment and contractual obligations; 
the ability of our subsidiaries to generate cash; 
pension funding obligations; 
potential impairments of goodwill; 
the outcome of legal and regulatory proceedings, investigations, incidents, claims and litigation; 
compliance with changes in, or new interpretations of applicable laws, regulations and tariffs; 
the cost of compliance with environmental laws and regulations and the costs of associated liabilities; 
changes in tax laws or the interpretation thereof; 
and  other  matters  set  forth  in  Item  1,  "Business,"  Item  1A,  "Risk  Factors"  and  Part  II,  Item  7,  "Management’s 
Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations,"  of  this  report,  some  of  which  risks  are 
beyond our control. 

In addition, the relative contributions to profitability by each business segment, and the assumptions underlying the forward-
looking statements relating thereto, may change over time.

All forward-looking statements are expressly qualified in their entirety by the foregoing cautionary statements. We undertake 
no  obligation  to,  and  expressly  disclaim  any  such  obligation  to,  update  or  revise  any  forward-looking  statements  to  reflect 
changed  assumptions,  the  occurrence  of  anticipated  or  unanticipated  events  or  changes  to  the  future  results  over  time  or 
otherwise, except as required by law.

6

ITEM 1. BUSINESS

NISOURCE INC.

PART I

NiSource  Inc.  is  an  energy  holding  company  under  the  Public  Utility  Holding  Company  Act  of  2005  whose  primary 
subsidiaries are fully regulated natural gas and electric utility companies, serving approximately 3.8 million customers in six 
states. NiSource is the successor to an Indiana corporation organized in 1987 under the name of NIPSCO Industries, Inc., which 
changed its name to NiSource Inc. on April 14, 1999.

On  November  7,  2022,  we  announced  our  intention  to  seek  a  minority  interest  investor  in  NIPSCO.  We  entered  into  an 
agreement with Blackstone on June 17, 2023, in furtherance of this goal. On December 31, 2023, the NIPSCO Minority Interest 
Transaction  closed.  At  closing,  NIPSCO  Holdings  I  contributed  all  its  membership  interests  in  NIPSCO  in  exchange  for  an 
80.1% controlling membership interest and Blackstone contributed $2.16 billion in cash in exchange for a 19.9% membership 
interest in NIPSCO Holdings II, respectively. NIPSCO Holdings II owns all the membership interests in NIPSCO.

NiSource’s principal subsidiaries include NiSource Gas Distribution Group, Inc. (a holding company that owns Columbia of 
Kentucky, Columbia of Maryland, Columbia of Ohio, Columbia of Pennsylvania, and Columbia of Virginia), and a controlling 
interest  in  NIPSCO  (a  gas  and  electric  company).  NiSource  derives  substantially  all  of  its  revenues  and  earnings  from  the 
operating results of these rate-regulated businesses.

Business Strategy
Our business strategy focuses on providing safe and reliable service through our core, rate-regulated, asset-based utilities, with 
the  goal  of  adding  value  to  all  of  our  stakeholders.  Our  utilities  continue  to  advance  our  core  safety,  infrastructure  and 
environmental  investment  programs  supported  by  complementary  regulatory  and  customer  initiatives  across  the  six  states  in 
which we operate. Our goal is to develop strategies that (i) support long-term infrastructure investment and safety programs to 
better serve our customers, (ii) align our tariff structures with our cost structure, and (iii) drive value and enable growth in an 
evolving  energy  ecosystem.  These  strategies  focus  on  improving  safety  and  reliability,  enhancing  customer  experience, 
pursuing  regulatory  and  legislative  initiatives  to  increase  accessibility  for  customers  currently  not  on  our  gas  and  electric 
service, ensuring customer affordability and reducing emissions while generating sustainable returns.

We remain committed to the advancement of our SMS for the safety of our customers, communities and employees. Our SMS 
is the established operating model within NiSource. In 2022, we achieved conformance certification to the American Petroleum 
Institute  Recommended  Practice  1173,  which  serves  as  the  guiding  practice  for  our  SMS.  This  certification,  which  requires 
ongoing annual review, marked an important milestone for our SMS and NiSource’s journey towards operational excellence. 
Our  focus  is  maintaining,  sustaining  and  continuously  improving  processes,  procedures,  capabilities  and  talent  to  enhance 
safety and reduce operational risk. 

NiSource has two reportable segments: Gas Distribution Operations and Electric Operations. The remainder of our operations, 
which are not significant enough on a stand-alone basis to warrant treatment as an operating segment, are included as Corporate 
and  Other.  The  activities  occurring  within  this  non-segment  consist  of  our  centralized  corporate  activities  and  are  primarily 
comprised  of  interest  expense  on  holding  company  debt  and  unallocated  corporate  costs  and  activities.  The  following  is  a 
summary  of  the  business  for  each  reporting  segment.  Refer  to  Item  7,  “Management’s  Discussion  and  Analysis  of  Financial 
Condition  and  Results  of  Operations”  and  Note  21,  "Business  Segment  Information,"  in  the  Notes  to  Consolidated  Financial 
Statements for additional information related to each segment.

Gas Distribution Operations
Our  natural  gas  distribution  operations  serve  approximately  3.3  million  customers  in  six  states.  Through  our  wholly-owned 
subsidiary NiSource Gas Distribution Group, Inc., we provide natural gas to approximately 2.4 million residential, commercial 
and industrial customers in Ohio, Pennsylvania, Virginia, Kentucky, and Maryland. Additionally, we distribute natural gas to 
approximately  0.9  million  customers  in  northern  Indiana  through  our  subsidiary  NIPSCO.  We  operate  approximately  55,000 
miles of distribution main pipeline plus the associated individual customer service lines and 1,000 miles of transmission main 
pipeline  located  in  our  service  areas  described  below.  Throughout  our  service  areas  we  also  have  gate  stations  and  other 
operations support facilities. See below for information on our owned operating facilities. There were no significant disruptions 
to our system or facilities during 2023.

7

ITEM 1. BUSINESS

NISOURCE INC.

Facility Name

Location

Type

Royal Center Underground Storage

Royal Center, IN

Natural Gas

Rolling Prairie LNG

Blackhawk Underground Storage

Eagle Cove Propane

South Wales Propane

Portsmouth Propane-Air

Total Capacities

Rolling Prairie, IN Liquified Natural Gas

Beaver Falls, PA

Natural Gas

Petersburgh, VA

Propane Gas

Jeffersonton, VA Propane Gas

Portsmouth, VA

Propane-Air Gas

Storage Capacity 
(MCF)

7,240,000 

4,000,000 

1,700,000 

863 

863 

17,300 

12,959,026 

Competition. Open access to natural gas supplies over interstate pipelines and the deregulation of the natural gas supply has led 
to tremendous change in the energy markets and natural gas competition. Due to open access to natural gas supplies, our LDC 
customers  can  purchase  gas  directly  from  producers  and  marketers  in  an  open,  competitive  market.  Certain  of  our  Gas 
Distribution  Operations’  subsidiaries  are  involved  in  programs  that  provide  our  residential  and  commercial  customers  the 
opportunity to purchase their natural gas requirements from third parties and use our Gas Distribution Operations’ subsidiaries 
for  transportation  services.  As  of  December  31,  2023,  25.9%  of  our  residential  customers  and  34.7%  of  our  commercial 
customers participated in such programs.

Gas  Distribution  Operations  competes  with  (i)  investor-owned,  municipal,  and  cooperative  electric  utilities  throughout  its 
service areas, (ii) other regulated and unregulated natural gas intra and interstate pipelines and (iii) other alternate fuels, such as 
propane and fuel oil. Gas Distribution Operations continues to be a strong competitor in the energy markets in which it operates 
as  a  result  of  strong  customer  preference  for  natural  gas.  Competition  with  providers  of  electricity  has  traditionally  been  the 
strongest in the residential and commercial markets of Kentucky, southern Ohio, central Pennsylvania and western Virginia due 
to comparatively low electric rates.

Additionally,  our  gas  distribution  operations  are  subject  to  seasonal  fluctuations  in  sales.  Revenues  from  gas  distribution 
operations are more significant during the heating season, which is primarily from November through March. Please refer to 
Part  II,  Item  7,  "Management's  Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations  -  Results  and 
Discussion of Operations - Gas Distribution Operations," for additional information.

Electric Operations
We generate, transmit and distribute electricity through our subsidiary NIPSCO to approximately 0.5 million customers in 20 
counties  in  the  northern  part  of  Indiana  and  also  engage  in  wholesale  electric  and  transmission  transactions.  We  own  and 
operate  sources  of  generation  as  well  as  source  power  through  PPAs.  We  continue  to  transition  our  generation  portfolio  to 
primarily renewable sources. We currently have four owned projects in service: Rosewater, Indiana Crossroads Wind, Indiana 
Crossroads Solar, and Dunns Bridge I. Rosewater went into service in December 2020 and Indiana Crossroads Wind went into 
service in December 2021. The Indiana Crossroads Solar and Dunns Bridge I Solar projects went into service in June 2023. In 
October 2021, NIPSCO completed the retirement of two coal-burning units with installed capacity of approximately 903 MW at 
Schahfer  Generating  Station,  located  in  Wheatfield,  IN.  As  of  December  31,  2023,  we  have  multiple  PPAs  that  provide  700 
MW of capacity, with contracts expiring between 2024 and 2040. 

NIPSCO’s  transmission  system,  with  voltages  from  69,000  to  765,000  volts,  consists  of  approximately  2,920  circuit  miles. 
NIPSCO is interconnected with eight neighboring electric utilities.We operate 66 transmission and 250 distribution substations, 
and  own  approximately  311,000  poles.  Additionally,  we  own  and  operate  reactive  resources  to  supplement  generation  when 
necessary.  Our  facilities  had  no  material  unplanned  interruptions  during  2023.  See  below  for  information  on  our  owned 
operating facilities:

8

 
 
 
 
 
 
 
ITEM 1. BUSINESS

NISOURCE INC.

R.M. Schahfer

Michigan City
Sugar Creek(2)
R.M. Schahfer

Oakdale

Facility Name

Location

Fuel Type

Wheatfield, IN

Steam - Coal

Michigan City, IN

Steam - Coal

West Terre Haute, IN CCGT

Wheatfield, IN

Natural Gas

Carroll County, IN

Hydro

Generating 
Capacity (MW)(1)
722 

455 

563 

155 

9 

Hydro

White County, IN

White County, IN

Norway
Rosewater(3)
Indiana Crossroads Wind(3)
Dunns Bridge I(3)
Indiana Crossroads Solar(3)
2,780 
Total MW Capacity
(1)Represents  current  net  generating  capability  of  each  fossil  fuel  and  hydro  generating  facility.  Nameplate  capacity  is  listed  for  wind  and  solar  generating 
facilities.
(2)Sugar Creek added additional generating capacity in January 2024.
(3)NIPSCO  is  the  managing  partner  of  these  JVs.  Refer  to  Note  4,  "Noncontrolling  Interest,"  in  the  Notes  to  Consolidated  Financial  Statements  for  more 
information. 

Jasper County, IN

White County, IN

White County, IN

Wind

Wind

Solar

Solar

265 

302 

200 

102 

7 

In November 2021, NIPSCO submitted its 2021 Integrated Resource Plan ("2021 Plan") with the IURC. The 2021 Plan builds 
upon the 2018 Integrated Resource Plan which outlined NIPSCO’s plan to retire its coal generating assets by 2028. The 2021 
Plan affirmed the 2018 retirement decisions and calls for the replacement of the retiring coal generating assets with a diverse 
portfolio  of  resources,  including  demand  side  management  resources,  incremental  solar,  stand-alone  energy  storage,  new  gas 
peaking resources and upgrades to existing facilities at the Sugar Creek Generating Station, among other steps. Refer to Item 7, 
"Management's  Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations”  for  further  discussion  of  these 
plans.

NIPSCO participates in the MISO transmission service and wholesale energy market. MISO is a nonprofit organization created 
in  compliance  with  FERC  regulations  to  improve  the  flow  of  electricity  in  the  regional  marketplace  and  to  enhance  electric 
reliability. Additionally, MISO is responsible for managing energy markets, transmission constraints and the day-ahead, real-
time,  Financial  Transmission  Rights  and  ancillary  markets.  NIPSCO  has  transferred  functional  control  of  its  electric 
transmission assets to MISO, and transmission service for NIPSCO occurs under the MISO Open Access Transmission Tariff. 
NIPSCO generating units are dispatched by MISO which takes into account economics, reliability of the MISO system and unit 
availability.  During  the  year  ended  December  31,  2023,  NIPSCO  generating  units,  inclusive  of  its  BTA  projects,  were 
dispatched to meet 49.5% of its overall system load, and the remainder of the overall system load was procured through PPAs 
and the MISO market.

Competition. Our electric utility generally has exclusive service areas under Indiana regulations, and retail electric customers in 
Indiana  do  not  have  the  ability  to  choose  their  electric  supplier.  NIPSCO  faces  non-utility  competition  from  other  energy 
sources, such as self-generation by large industrial customers and other distributed energy sources.

Our  electric  operations  are  subject  to  seasonal  fluctuations  in  sales.  Revenues  from  electric  operations  are  more  significant 
during  the  cooling  season,  which  is  primarily  from  June  through  September.  Please  refer  to  Part  II,  Item  7,  "Management's 
Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations  -  Results  and  Discussion  of  Operations  -  Electric 
Operations," for additional information.

Political Action
The  NiSource  Political  Action  Committee  ("NiPAC")  provides  our  employees  a  voice  in  the  political  process.  NiPAC  is  a 
voluntary,  employee  and  director  driven  and  funded  political  action  committee,  and  NiPAC  makes  bipartisan  political 
contributions to local, state and federal candidates where permitted and in accordance with established guidelines. Consistent 
with  our  commitments  and  our  approach  to  engagement,  the  NiPAC  leadership  committee  members  evaluate  candidates  for 
support on issues important to our business.

9

 
 
 
 
 
 
 
 
 
 
 
ITEM 1. BUSINESS

NISOURCE INC.
Regulatory
The  applicable  regulatory  landscape  at  both  the  state  and  federal  levels  continue  to  evolve,  including  environmental.  These 
changes have had and will continue to have an impact on our operations, structure and profitability. Management continually 
seeks  new  ways  to  be  more  competitive  and  profitable  in  this  environment,  while  keeping  service  and  affordability  for 
customers at the forefront. We believe we are, in all material respects, in compliance with such laws and regulations and do not 
expect future compliance changes to have a material impact on our capital expenditures, earnings, or competitive position. We 
continue to monitor existing and pending laws and regulations, and the impact of regulatory changes cannot be predicted with 
certainty.

Rate  Case  Actions.  The  following  table  describes  current  rate  case  actions  as  applicable  in  each  of  our  jurisdictions  net  of 
tracker impacts. See "Cost Recovery and Trackers" below for further detail on trackers.

(in millions)

Company

Approved ROE

Requested 
Incremental 
Revenue

Approved 
Incremental 
Revenue

Filing Date

Rates 
Effective

Approved Rates Cases

Columbia of Pennsylvania(1)
Columbia of Maryland(1)
Columbia of Kentucky(2)
Columbia of Virginia(3)

Columbia of Ohio
NIPSCO - Gas(4)
NIPSCO - Electric(5)

Pending Rate Cases
NIPSCO - Gas(6)

None specified $ 

None specified $ 

 9.35 % $ 

None specified $ 

 9.60 % $ 

 9.85 % $ 

 9.80 % $ 

82.2  $ 

6.5  $ 

26.7  $ 

40.5  $ 

221.4  $ 

109.7  $ 

291.8  $ 

44.5  March 18, 2022

December 2022

3.9  May 12, 2023

December 2023

18.3  May 28, 2021

January 2022

25.8  April 29, 2022

October 2022

68.3  June 30, 2021

March 2023

71.8  September 29, 2021 September 2022

261.9  September 19, 2022 August 2023

In process $ 

161.9 

In process October 25, 2023

September 2024

(1) No approved ROE is identified for this matter since the approved revenue increase is the result of a black box settlement under which parties agree upon the 
amount of increase.
(2)The approved ROE for natural gas capital riders (e.g.,SMRP) is 9.275%.
(3)Columbia of Virginia's rate case resulted in a black box settlement, representing a settlement to a specific revenue increase but not a specified ROE. The 
settlement provides use of a 9.70% ROE for future SAVE filings.
(4)New rates were implemented in 2 steps, with implementation of Step 1 rates in September 2022. The Step 2 rates were filed on February 21, 2023, with rates 
effective March 2023.
(5)New rates will be implemented in 2 steps, with implementation of Step 1 rates in August 2023 and Step 2 Rates to be effective in March 2024, with service 
provided in February 2024. 
(6)Pending the outcome of the current case, new rates are expected to be implemented in 2 steps, with implementation of Step 1 rates to be effective in 
September 2024 and Step 2 Rates in March 2025. 

10

ITEM 1. BUSINESS

NISOURCE INC.
FERC.  NiSource’s  service  company  and  operating  companies  are  subject  to  varying  degrees  of  regulation  by  the  FERC. 
NiSource  Corporate  Services  files  a  FERC  Form  60  annual  report  with  its  financial  information  as  a  FERC  jurisdictional 
centralized service company. NiSource also files an annual FERC Form 61 which contains a narrative description of the service 
company's functions during the prior calendar year.

As  natural  gas  LDCs,  Columbia  of  Maryland,  Columbia  of  Ohio,  Columbia  of  Pennsylvania,  Columbia  of  Virginia,  and 
NIPSCO have limited jurisdictional certificates to transport gas in the respective service territories into interstate commerce. 

As an electric company, NIPSCO has Market Based Rate authority and is a Transmission Owner subject to FERC jurisdiction. 
NIPSCO files the following reports annually: 

•
•
•

•

FERC Form 1, which is a comprehensive financial and operating report, 
FERC Form 566, which is a list of its 20 largest purchases of electricity over the past three years, 
FERC Form 715, which is its Annual Transmission Planning and Evaluation Report and the base case power flow data 
from the Eastern Interconnection Reliability Assessment Group Multiregional Modeling Working Group, which was 
used by NIPSCO for transmission planning and, 
FERC Form 730, which is NIPSCO’s Report of Transmission Investment Activity. 

As  a  Transmission  Owner  subject  to  the  MISO  Transmission  Owners  Agreement  and  Tariff,  NIPSCO  has  various  FERC 
jurisdictional obligations such as maintaining its Attachment O formula rates and corresponding protocols. NIPSCO also has 
FERC approvals to make affiliate transactions between itself and various JVs. NIPSCO’s officers, on the electric side, are also 
subject to FERC’s interlocking directorate rules and reporting requirements.

Regulatory  Framework.  The  Gas  Distribution  Operations  utilities  have  pursued  non-traditional  revenue  sources  within  the 
evolving  natural  gas  marketplace.  These  efforts  include  (i)  the  sale  of  products  and  services  in  the  companies’  service 
territories, and (ii) gas supply cost incentive mechanisms for service to their core markets. The on-system services are offered 
by  us  to  customers  and  include  products  such  as  the  transportation  and  balancing  of  gas  on  the  Gas  Distribution  Operations 
utility's system. The incentive mechanisms give the Gas Distribution Operations utilities an opportunity to share in the savings 
created  from  such  situations  as  gas  purchases  made  below  an  agreed  upon  benchmark  price  and  the  remarketing  of  unused 
pipeline capacity to reduce overall pipeline costs.

We recognize that energy efficiency reduces emissions, conserves natural resources and saves our customers money. Our gas 
distribution  companies  offer  programs  such  as  energy  efficiency  upgrades,  home  checkups  and  weatherization  services.  The 
increased  efficiency  of  natural  gas  appliances  and  improvements  in  home  building  codes  and  standards  contribute  to  a  long-
term trend of declining average use per customer. While we are looking to expand offerings so the energy efficiency programs 
can  benefit  as  many  customers  as  possible,  our  Gas  Distribution  Operations  have  pursued  changes  in  rate  design  to  more 
effectively match recoveries with costs incurred. Columbia of Ohio has adopted a straight fixed variable rate design that closely 
links the recovery of fixed costs with fixed charges. Columbia of Maryland and Columbia of Virginia have regulatory approval 
for weather and revenue normalization adjustments for certain customer classes, which adjust monthly revenues that exceed or 
fall  short  of  approved  levels.  Columbia  of  Pennsylvania  continues  to  operate  its  pilot  residential  weather  normalization 
adjustment  and  also  has  a  fixed  customer  charge.  This  weather  normalization  adjustment  only  adjusts  revenues  when  actual 
weather compared to normal varies by more than 3%. Columbia of Kentucky incorporates a weather normalization adjustment 
for certain customer classes and also has a fixed customer charge. NIPSCO Gas and Electric include a fixed customer charge 
for residential and small commercial and industrial customer classes, but has no weather or usage protection mechanism. In its 
pending gas rate case, NIPSCO has requested approval of a revenue decoupling mechanism. 

While  increased  efficiency  of  electric  appliances  and  improvements  in  home  building  codes  and  standards  have  similarly 
impacted the average use per electric customer in recent years, NIPSCO expects future growth in per customer usage as a result 
of  increasing  electric  applications.  Further  growth  is  anticipated  as  electric  vehicles  become  more  prevalent.  These  ongoing 
changes in use of electricity will likely lead to development of innovative rate designs, and NIPSCO will continue efforts to 
design rates that increase the certainty of recovery of fixed costs.

11

ITEM 1. BUSINESS

NISOURCE INC.
Cost Recovery and Trackers. Comparability of our line item operating results is impacted by regulatory trackers that allow for 
the  recovery  in  rates  of  certain  costs  such  as  those  described  below.  Increases  in  the  expenses  that  are  subject  to  approved 
regulatory tracker mechanisms generally lead to increased regulatory assets, which ultimately result in a corresponding increase 
in operating revenues and, therefore, have essentially no impact on total operating income results. Certain approved regulatory 
tracker  mechanisms  allow for abbreviated regulatory proceedings in order for the operating companies to quickly implement 
revised rates and recover associated costs.

A portion of the Gas Distribution Operations revenue is related to the recovery of gas costs, the review and recovery of which 
occurs  through  standard  regulatory  proceedings.  All  states  in  our  operating  area  require  periodic  review  of  actual  gas 
procurement activity to determine prudence and confirm the recovery of prudently incurred energy commodity costs supplied to 
customers.

A portion of the Electric Operations revenue is related to the recovery of fuel costs to generate power and the fuel costs related 
to  purchased  power.  These  costs  are  recovered  through  a  FAC,  which  is  updated  quarterly  to  reflect  actual  costs  incurred  to 
supply electricity to customers.

Environmental and Safety Matters

We are committed to reducing the environmental impact of our business and promoting sustained environmental stewardship. 
We seek proactive opportunities for improved environmental performance and are committed to complying with environmental 
laws  and  regulations.  To  fulfill  our  vision  of  being  a  trusted  energy  provider,  we  follow  safety  practices  recommended  by 
leading  industry  organizations.  These  practices  help  us  identify  and  address  potential  risks,  resulting  in  improvements  to  our 
operational and environmental safety.

PHMSA Legislation and Regulations
Under  the  Protecting  Our  Infrastructure  of  Pipelines  and  Enhancing  Safety  (PIPES)  Act  of  2020,  PHMSA  has  revised,  and 
continues to revise, the pipeline safety regulations to require operators to update, as needed, their existing distribution integrity 
management  plans,  emergency  response  plans,  and  operation  and  maintenance  plans.  PHMSA  has  also  adopted  new 
requirements for managing records and updating, as necessary, existing district regulator stations to eliminate common modes 
of failure that can lead to over-pressurization.

In May 2023, PHMSA proposed numerous regulatory revisions under the PIPES Act of 2020 to minimize methane emissions 
and improve public safety. Under these proposed revisions, our subsidiaries would be required to detect and repair an increased 
number of gas leaks, reduce the time to repair leaks, increase leak survey frequency, and expand our existing advanced leak 
detection program. We continue to evaluate the proposed rule for additional impacts on our business.

In  September  2023,  PHMSA  proposed  additional  regulatory  revisions  under  the  PIPES  Act  of  2020  to  enhance  distribution 
system safety through equipment and procedural expectations. Operators will be required to incorporate additional protections 
for low pressure distribution systems that prevent over-pressurization, amend construction procedures designed to minimize the 
risk  of  incidents  caused  by  system  over-pressurization,  and  update  distribution  integrity  management  programs  to  cover  and 
prepare for over-pressurization incidents. 

On November 30, 2023, the House Transportation & Infrastructure Committee introduced new pipeline safety reauthorization 
legislation known as the PIPES Act of 2023 to reauthorize PHMSA’s safety programs for the next four years. The proposed 
legislation  includes  several  priorities  for  our  company,  including  excavation  damage  prevention  grants  to  improve  states’ 
damage  prevention  programs,  a  PHMSA  study  on  blending  hydrogen  in  distribution  pipelines,  new  criminal  penalties  for 
intentionally  damaging  pipeline  facilities,  and  creation  of  a  Voluntary  Information  Sharing  System  to  allow  for  industry 
participants to share learnings and best practices in a protected manner across the pipeline industry.

CCR Regulation
In  May  2023,  the  EPA  proposed  changes  to  the  CCR  regulations  for  inactive  surface  impoundments  at  inactive  facilities, 
referred to as legacy CCR surface impoundments. The EPA is also proposing to extend a subset of requirements in the CCR 
regulations  to  areas  not  previously  subject  to  the  CCR  regulations,  referred  to  as  CCR  management  units  ("CCRMUs").  In 
November 2023, the EPA issued a Notice of Data Availability seeking comment on updated lists of legacy impoundments and 
CCRMUs, as well as a risk assessment for legacy impoundments and CCRMUs. We continue to evaluate the proposed rule for 
impacts on our business.

12

ITEM 1. BUSINESS

NISOURCE INC.
Climate Change Issues
Physical  Climate  Risks.  Increased  frequency  of  severe  and  extreme  weather  events  associated  with  climate  change  could 
materially  impact  our  facilities,  energy  sales,  and  results  of  operations.  We  are  unable  to  predict  these  events.  However,  we 
perform  ongoing  assessments  of  physical  risk,  including  physical  climate  risk,  to  our  business.  More  extreme  and  volatile 
temperatures, increased storm intensity and flooding, and more volatile precipitation leading to changes in lake and river levels 
are among the weather events that are most likely to impact our business. Efforts to mitigate these physical risks continue to be 
implemented on an ongoing basis.

Transition Climate Risks. We actively engage with and monitor the impact that proposed legislative and regulatory programs 
related  to  GHG  emissions,  at  both  the  federal  and  state  levels,  would  have  on  our  business.  Refer  to  Item  1A.  Risk  Factors, 
"Operational Risks," of this Annual Report on Form 10-K for further detail. 

Regarding  federal  policies,  we  continue  to  monitor  the  implementation  of  any  final  and  proposed  climate  change-related 
legislation  and  regulation,  including  the  IIJA,  IRA,  EPA's  final  methane  regulations  for  the  oil  and  natural  gas  industry,  and 
EPA's proposed Waste Emissions Charge for Petroleum and Natural Gas systems. We have identified potential opportunities 
associated  with  the  IIJA  and  the  IRA  and  are  evaluating  how  they  may  align  with  our  strategy  going  forward.  The  energy-
related  provisions  of  the  IIJA  include  new  federal  funding  for  power  grid  infrastructure  and  resiliency  investments,  new  and 
existing  energy  efficiency  and  weatherization  programs,  electric  vehicle  infrastructure  for  public  chargers  and  additional 
LIHEAP funding. The IRA contains climate and energy provisions, including funding to decarbonize the electric sector.

The  United  States  is  a  party  to  the  Paris  Agreement,  an  international  treaty  through  which  parties  set  nationally  determined 
contributions to reduce GHG emissions, build resilience, and adapt to the impacts of climate change. The Biden Administration 
has  set  a  target  for  the  United  States  to  achieve  a  50%-52%  GHG  reduction  from  2005  levels  by  2030,  which  supports  the 
President's goals to create a carbon-free power sector by 2035 and net zero emissions economy no later than 2050. There are 
many potential pathways to reach these goals.

In December 2023, the  U.S.  Department  of Energy ("DOE") amended the congressionally-mandated efficiency standards for 
residential home furnaces manufactured after December 2028. We are assessing the potential impacts associated with these new 
standards.  

The  DOE  has  selected  two  hydrogen  hubs  in  our  territories  as  recipients  of  funding  designated  in  the  IIJA  to  support  the 
development  of  regional  clean  hydrogen  hubs.  The  two  hubs  are  the  Midwest  Alliance  for  Clean  Hydrogen  Hub  (MachH2), 
with potential projects across Illinois, Indiana, Kentucky, Michigan, Missouri, and Wisconsin; and the Appalachian Regional 
Clean Hydrogen Hub (ARCH2), with potential investments across West Virginia, Ohio, Kentucky, and Pennsylvania. Work is 
underway to determine what roles our companies may have with these hydrogen hubs.

In May 2023, the EPA released a package of proposed regulatory actions to reduce carbon dioxide emissions from new natural 
gas-fired electric generating units ("EGUs"), existing natural gas-fired EGUs, and existing coal-fired EGUs. We are reviewing 
the potential impacts of the proposed rules.

We also continue to monitor the implementation of any final and proposed state policy. The Virginia Energy Innovation Act, 
enacted into law in April 2022, and effective July 1, 2022, allows natural gas utilities to supply alternative forms of gas that 
meet  certain  standards  and  reduce  emissions  intensity.  The  Act  also  provides  that  the  costs  of  enhanced  leak  detection  and 
repair may be added to a utility’s plan to identify proposed eligible infrastructure replacement projects and related cost recovery 
mechanisms, known as the SAVE Plan. Furthermore, under the Act, utilities can recover eligible biogas supply infrastructure 
costs on an ongoing basis. The provisions of these laws may provide opportunities for Columbia of Virginia as it participates in 
the transition to a lower carbon future.

The Climate Solutions Now Act of 2022 requires Maryland to reduce GHG emissions by 60% by 2031 (from 2006 levels), and 
it  requires  the  state  to  reach  net  zero  emissions  by  2045.  The  Maryland  Department  of  the  Environment  adopted  a  plan  to 
achieve its 2031 goal and is required to adopt a plan for their 2045 net zero goal by 2030. The Act also enacts a state policy to 
move  to  broader  electrification  of  both  existing  buildings  and  new  construction,  and  requires  the  PSC  to  complete  a  study 
assessing  the  capacity  of  gas  and  electric  distribution  systems  to  successfully  serve  customers  under  a  transition  to  a  highly 
electrified  building  sector.  The  PSC  released  their  report  on  December  29,  2023,  and  concluded  that  high  levels  of 
electrification can be handled by Maryland's electric systems through 2031. On December 15, 2023, the Maryland Department 
of  the  Environment  issued  proposed  Building  Energy  Performance  Standards  (BEPS),  which  would  require  net  zero  direct 
greenhouse gas emissions from large buildings by 2040 with interim targets. Comments on the proposed action were due to the 
agency  on  January  18,  2024.  Columbia  of  Maryland  is  advocating  for  compliance  pathways  that  use  RNG,  hydrogen,  and 
emissions  offsets.  Separately,  the  PSC  has  also  initiated  a  proceeding  related  to  Near-Term,  Priority  Actions  and 

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ITEM 1. BUSINESS

NISOURCE INC.
Comprehensive,  Long-Term  Planning  for  Maryland's  Gas  Companies.  Columbia  of  Maryland  will  continue  to  monitor  these 
matters, but we cannot predict their final impact on our business at this time.

NIPSCO Gas, Columbia of Maryland, Columbia of Pennsylvania, Columbia of Virginia and Columbia of Kentucky each filed 
petitions to implement the Green Path Rider, which is a voluntary rider allowing customers to opt in and offset either 50% or 
100%  of  their  natural  gas  related  emissions.  To  reduce  the  emissions,  the  utilities  will  purchase  RNG  attributes  and  carbon 
offsets  to  match  the  usage  for  customers  opting  into  the  program.  The  program  was  approved  by  the  IURC  at  NIPSCO  in 
November  2022  with  a  January  2023  start  date.  After  reaching  settlement  with  other  parties  in  September  2022,  NIPSCO 
agreed to add a third tier to offset 25% of customer usage. Columbia of Virginia received a final order in May 2023, approving 
the  Green  Path  Rider  and  began  enrolling  customers  in  September  2023.  The  petitions  filed  by  Columbia  of  Maryland, 
Columbia of Pennsylvania, and Columbia of Kentucky were rejected and have not been implemented as of December 31, 2023. 
Additionally,  NIPSCO  Electric  has  a  voluntary  Green  Power  Rider  program  in  place  that  allows  customers  to  designate  a 
portion or all their monthly electric usage to come from power generated by renewable energy sources.

Net Zero Goal. In November 2022, we announced a goal of net zero greenhouse gas emissions by 2040 covering both Scope 1 
and Scope 2 GHG emissions ("Net Zero Goal"). Our Net Zero Goal builds on greenhouse gas emission reductions achieved to-
date  and  demonstrates  that  continued  execution  of  our  long-term  business  plan  will  drive  further  greenhouse  gas  emission 
reductions. We remain on track to achieve previously announced interim greenhouse gas emission reduction targets by reducing 
fugitive methane emissions from main and service lines by 50 percent from 2005 levels by 2025 and reducing Scope 1 GHG 
emissions  from  company-wide  operations  by  90  percent  from  2005  levels  by  2030.  We  plan  to  achieve  our  Net  Zero  Goal 
primarily  through  continuation  and  enhancement  of  existing  programs,  such  as  retiring  and  replacing  coal-fired  electric 
generation  with  low-  or  zero-emission  electric  generation,  ongoing  pipe  replacement  and  modernization  programs,  and 
deployment  of  advanced  leak-detection  technologies.  In  addition,  we  plan  to  advance  other  low-  or  zero-emission  energy 
resources and technologies, which may include hydrogen, renewable natural gas, long-duration storage, and/or deployment of 
carbon  capture  and  utilization  technologies,  if  and  when  these  become  technologically  and  economically  feasible.  Carbon 
offsets and renewable energy credits may also be used to support achievement of our Net Zero Goal. As of the end of 2022, we 
had reduced Scope 1 GHG emissions by approximately 67% from 2005 levels.

Our greenhouse gas emissions projections, including achieving a Net Zero Goal, are subject to various assumptions that involve 
risks and uncertainties. Achievement of our Net Zero Goal by 2040 will require supportive regulatory and legislative policies, 
favorable stakeholder environments and advancement of technologies that are not currently economical to deploy. Should such 
regulatory and legislative policies, stakeholder environments or technologies fail to materialize, our actual results or ability to 
achieve our Net Zero Goal, including by 2040, may differ materially.

As  discussed  in  Management's  Discussion  within  "Results  and  Discussion  of  Operations  -  Electric  Operations,"  NIPSCO 
continues to execute on an electric generation transition consistent with the preferred pathways identified in its 2018 and 2021 
Integrated Resource Plans. Additionally, as discussed in Management's Discussion within "Liquidity and Capital Resources - 
Regulatory  Capital  Programs,"  our  natural  gas  distribution  companies  are  lowering  methane  emissions  by  replacing  aging 
infrastructure, which also increases safety and reliability for customers and communities.

Human Capital
Human Capital Management Governance and Organizational Practices. The Compensation and Human Capital Committee 
("C&HC Committee") of our Board of Directors (the "Board") is primarily responsible for assisting the Board in overseeing our 
human capital management practices. The C&HC Committee reviews our human capital management function and programs. 
The  review  of  related  procedures,  programs,  policies  and  practices  allows  the  committee  to  make  recommendations  to 
management with respect to equal employment opportunity and DE&I initiatives, employee engagement, corporate culture, and 
talent management.

In addition to overseeing our human capital management practices, our Board is committed to equal opportunity and valuing 
diversity. We have a goal that the Board is comprised of directors with diverse skills, expertise, experience, and demographics, 
including racial and gender diversity. 

Human  Capital  Goals  and  Objectives.  We  have  aligned  our  human  capital  goals  to  achieve  overall  company  strategic  and 
operational objectives by driving an enhanced talent strategy, elevating support for front-line leaders, fostering a culture of rigor 
and  accountability,  and  strengthening  our  human  resource  function.  We  aspire  to  be  an  employer  of  choice  in  the  utility 
industry, in part, through embedding DE&I throughout the enterprise and creating an enviable employee experience. 

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ITEM 1. BUSINESS

NISOURCE INC.
Workforce Composition. As of December 31, 2023, we had 7,364 full-time and 47 part-time active employees (i.e., not interns, 
not  on  leave  or  disability).  Of  our  total  workforce,  34%  were  subject  to  collective  bargaining  agreements  with  various  labor 
unions. These collective bargaining agreements were renegotiated in 2021 and 2023 and expire in 2026 and 2027, respectively.

Diversity, Equity and Inclusion. We foster an enviable work environment that embraces DE&I and where all employees are 
energized.  In  efforts  to  become  an  employer  of  choice,  we  have  developed  sourcing  strategies  to  attract  and  retain  the  most 
qualified talent. Our executive leadership team is characterized by a diverse composition, with 75% representation from both 
POC  and  females.  In  additional  we  have  made  progress  the  last  several  years  with  growth  in  our  overall  female  and  POC 
population.

In 2023, our Diversity of Slate initiative contributed to our talent acquisition team filling 1,508 roles with 579 filled by external 
candidates. Our efforts in 2023 resulted in 32% of external hires being racially or ethnically diverse and 49% being female. Our 
sourcing  efforts  led  our  organization  across  all  businesses  to  create  a  workforce  composition  that  embraces  all  different 
perspectives.  We  believe  that  every  move  we  make  as  a  company  must  value  and  advance  the  interests  of  the  individual, 
energize our communities, and serve as another step toward establishing a society where no one is left behind. 

A company that works to become truly fair and inclusive opens the door to more voices being heard. Our employee resource 
groups  (ERGs)  serve  to  create  a  culture  of  inclusion  through  their  engagement  of  all  employees  throughout  the  year.  We 
continue to develop ERG leaders to equip employees with the necessary tools to further support our efforts for advancement 
and strengthen our inclusive workplace. A key area for us has been our implementation and development of programs to drive 
higher retention and engagement of our employees. Our commitment is grounded on the core belief that our purpose extends far 
beyond  our  primary  role  as  a  utility  company;  thus,  we  focused  on  inclusive  leadership  training  for  over  700  Directors  and 
Managers in the organization. 

We  are  committed  to  providing  equal  employment  opportunities  in  each  of  our  companies  to  all  employees  and  applicants 
without regard to race, color, religion, national origin or ancestry, veteran status, disability, gender, age, marital status, sexual 
orientation, gender identity, genetic information, or any protected group status as defined by law. The input provided by our 
increasingly diverse workforce will continue to strengthen our corporate culture as well as drive constructive changes within 
our company to improve our operational strategies, enhance the quality of the services we provide, and increase revenue.

Talent Attraction. To recruit and hire individuals with a variety of skills, talents, backgrounds and experiences, we value and 
cultivate  relationships  with  community  and  diversity  outreach  partners.  We  also  target  job  fairs,  including  those  focused  on 
people  of  color  and  veteran  and  female  candidates  and  partner  with  local  colleges  and  universities  to  identify  and  recruit 
qualified applicants in the communities we serve.

Similar  to  other  companies  we  focused  on  our  future  of  work  and  creating  a  flexible,  agile  model  for  roles  that  can  be 
performed in a more remote setting. Our hybrid model recognizes differing ways of working; onsite, hybrid and remote. Most 
of our workforce is onsite (56%) and our hybrid (36%) and remote (7%) roles provide different avenues of working and seeking 
talent  across  our  footprint.  Hybrid  employees  work  in  a  NiSource  facility  twice  a  week.  This  in-office  presence  supports 
colleague connection, development, in-person mentoring, and broader team building.

As an investment in our talent attraction in 2023, our NiSource Candidate Relationship Management (CRM) was brought online 
enabling interface with potential candidates and pools of candidates through a talent network even when active recruiting may 
not be in progress. We are proud to be one of TIME magazine’s World’s Best Companies of 2023 and recognized to the Forbes 
2023 list of Best Employers for Diversity.

Talent  Development  and  Retention.  We  offer  leadership  development  programs  to  enhance  the  behaviors  and  skills  of  our 
existing and future leaders. In 2023, we had participation from employees of all levels. We also offer extensive technical and 
non-technical employee development training programs.

We  strive  to  provide  promotion  and  advancement  opportunities  for  employees.  In  2023,  for  all  leadership  positions  at  the 
supervisor and above level posted externally, we filled 72% with internal employees. We also develop and implement targeted 
development action plans to increase succession candidate readiness for leadership roles. Additionally, we monitor the risk and 
potential impact of talent loss and take action to increase retention of top talent. Retention in 2023 was over 93%. We calculate 
retention  as  100  minus  the  total  number  of  separations  divided  by  the  average  headcount  for  the  annual  period.  These 

15

ITEM 1. BUSINESS

NISOURCE INC.
separations break down into involuntary separations (2%), resignations (4%), and retirements (2%). Retention has improved 2% 
year over year since 2021.

Succession  Planning.  We  perform  succession  planning  annually  for  officer  level  positions  to  ensure  that  we  develop  and 
sustain  a  strong  bench  of  talent  capable  of  performing  at  the  highest  levels.  Talent  is  identified,  and  potential  paths  of 
development  are  discussed  to  ensure  that  employees  have  an  opportunity  to  build  their  skills  to  be  well-prepared  for  future 
roles. We maintain formal succession plans for our Chief Executive Officer ("CEO") and key officers. The succession plan for 
our CEO is reviewed by the Nominating and Governance Committee and the succession plans for key officers (other than the 
CEO)  and  critical  roles  are  reviewed  by  the  Compensation  and  Human  Capital  Committee  annually  or  more  frequently  as 
needed.

Employee and Workplace Health and Safety. We have several programs to support employees, and their families’ physical, 
mental,  and  financial  well-being.  These  programs  include  competitive  medical,  dental,  vision,  life  and  long-term  disability 
programs, including employee HSA company contributions, telemedicine services, Employee Assistance Program, Integrated 
Health Management navigation services, and paid time off including a wellness day, sick/disability, parental leave, and illness 
in family day.

We also have a robust program to support employees, contractors and public safety, which is led by our Chief Safety Officer 
and is under the oversight of the Safety, Operations, Regulatory and Policy Committee of our Board. 

Culture  and  Engagement.  Our  culture  is  another  important  aspect  of  our  ability  to  advance  our  strategic  and  operational 
objectives. In addition to our DE&I, recruiting, development and retention programs described above, we also invest in internal 
communications programs, including in-person and virtual learning and networking opportunities, as well as regular town hall 
communications to employees. We measure and monitor culture and employee engagement through various channels including 
employee  lifecycle,  pulse,  and  census  surveys.  These  surveys  continue  to  show  above  benchmark  performance  in  safety, 
employee/manager relationships, and employee empowerment.

To  instill  and  reinforce  our  values  and  culture,  we  require  our  employees  to  participate  in  regular  training  on  ethics  and 
compliance  topics  each  year,  including  raising  concerns,  treating  others  with  respect,  preventing  discrimination  in  the 
workplace, anti-bribery and corruption, data protection, unconscious biases, harassment, conflicts of interest, and how to use the 
anonymous ethics and compliance hotline. All employees receive training on our Code of Business Conduct annually or more 
frequently if there is a material change in content. Because of this training and other programs, we have learned from our most 
recent  employee  survey  that  92%  of  our  employees  know  what  ethical  violations  look  like  and  how  to  report  them.  Our 
business ethics program, including the employee training program, is reviewed annually by our executive leadership team and 
the Audit Committee of our Board of Directors.

Our  Compensation  and  Human  Capital  Committee  reviews  reports  from  our  Chief  Human  Resources  Officer  and  Chief 
Diversity, Equity and Inclusion Officer on employee engagement and corporate culture. Our Board reviews results and action 
plans related to our enterprise-wide comprehensive employee engagement survey. Our executive leadership team, including our 
Chief  Executive  Officer,  communicates  directly  and  regularly  with  all  employees  on  timely  ethics  topics  through  electronic 
messages, coffee chats, and all-employee town hall meetings. These communications emphasize the importance of our values 
and culture in the workplace.

16

 INFORMATION ABOUT OUR EXECUTIVE OFFICERS

NISOURCE INC.

The following is a list of our Executive Officers, including their names, ages, offices held and other recent business experience.

Name
Lloyd M. Yates     ....................

Age
  63  President  and  Chief  Executive  Officer  of  NiSource  since  February  2022  and  Director 

Office(s) Held in Past 5 Years

since March 2020

Shawn Anderson    ..................

Executive Vice President, Customer and Delivery Operations, and President, 
Carolinas Region, of Duke Energy Corporation from 2014 to 2019.
  42  Executive Vice President and Chief Financial Officer of NiSource since March 2023

Senior Vice President and Chief Strategy and Risk Officer from June 2020 to 
March 2023.
Vice President, Strategy and Chief Risk Officer from January 2019 to May 2020.

Melody Birmingham  ............

  52  Executive  Vice  President,  and  President,  NiSource  Utilities  of  NiSource  since  March 

2023

Executive Vice President, Chief Innovation Officer of NiSource from July 2022 to 
March 2023.
Senior Vice President and Chief Administrator Officer of Duke Energy 
Corporation from May 2021 to June 2022.
Senior Vice President, Supply Chain and Chief Procurement Officer of Duke 
Energy Indiana from 2018 to April 2021.

Donald E. Brown    .................

  52  Executive Vice President and Chief Innovation Officer of NiSource since March 2023
Executive Vice President and Chief Financial Officer of NiSource from July 2015 
to March 2023.
President, NiSource Corporate Services from 2020 to 2022.

William Jefferson, Jr  ............

  62  Executive Vice President, Operations and Chief Safety Officer of NiSource since July 

2022

Station Director and Plant General Manager at STPNOC, Wadsworth, Texas, from 
2016 to May 2022.

Michael S. Luhrs ..................

  51  Executive  Vice  President,  Strategy  and  Risk  Chief  Commercial  Officer  of  NiSource 

since March 2023

Senior Vice President at Alliant Energy from 2022 to March 2023.
Vice President at Duke Energy Corporation from 2013 to 2022.

Kimberly S. Cuccia   ..............

  40  Senior  Vice  President,  General  Counsel  and  Corporate  Secretary  of  NiSource  since 

April 2022

Melanie B. Berman     ..............

Vice President, Interim General Counsel and Corporate Secretary of NiSource from 
December 2021 to April 2022.
Vice President and Deputy General Counsel, Regulatory, of NiSource Corporate 
Services Company, from January 2021 to December 2021.
Vice President and General Counsel of Columbia Gas of Massachusetts and of 
NiSource Corporate Services Company, from 2019 to 2020.
  53  Senior Vice President and Chief Human Resources Officer since June 2021

Executive Vice President and Chief Human Resources Officer of The Michaels 
Companies, Inc. from 2020 to 2021.

Vice President, Human Resources of Anthem, Inc. from January 2018 to 2019.

Michael W. Hooper    .............

50 Senior Vice President and President, NIPSCO of NiSource since May 2020

Gunnar J. Gode    ....................

49 Vice President, Chief Accounting Officer and Controller of NiSource since July 2020

Senior Vice President, Regulatory, Legislative Affairs and Strategy, of NIPSCO 
from 2018 to 2020.

Vice President and Controller of Washington Gas from March 2019 to 2020.

Assistant Controller of Washington Gas from 2016 to March 2019.

17

ITEM 1A. RISK FACTORS

NISOURCE INC.
Our operations and financial results are subject to various risks and uncertainties, including those described below, that could 
adversely affect our business, financial condition, results of operations, cash flows, and the market price of our common stock. 

OPERATIONAL RISKS

We may not be able to execute our business plan or growth strategy, including utility infrastructure investments.
Operational,  financial  or  regulatory  conditions  may  result  in  our  inability  to  execute  our  business  plan  or  growth  strategy, 
including investments related to natural gas pipeline modernization and our renewable energy projects, and the build-transfer 
execution goals within our business plan.

Our enterprise-wide transformation roadmap initiatives are designed to identify long-term sustainable capability enhancements, 
cost optimization improvements, technology investments and work process optimization, has increased the volume and pace of 
change and may not be effective as it continues. Our customer and regulatory initiatives may not achieve planned results. Utility 
infrastructure investments may not materialize, may cease to be achievable or economically viable and may not be successfully 
completed. Natural gas may cease to be viewed as an economically and environmentally attractive fuel. Certain environmental 
activist  groups,  investors  and  governmental  entities  continue  to  oppose  natural  gas  delivery  and  infrastructure  investments 
because  of  perceived  environmental  impacts  associated  with  the  natural  gas  supply  chain  and  end  use.  Energy  conservation, 
energy  efficiency,  distributed  generation,  energy  storage,  policies  favoring  electric  heat  over  gas  heat  and  other  factors  may 
reduce demand for natural gas and electricity. In addition, we consider acquisitions or dispositions of assets or businesses, JVs, 
and  mergers  from  time  to  time  as  we  execute  on  our  business  plan  and  growth  strategy.  Any  of  these  circumstances  could 
adversely affect our business, results of operations and growth prospects. Even if our business plan and/or growth strategy are 
executed, there is still risk of, among other things, human error in maintenance, installation or operations, shortages or delays in 
obtaining equipment, including as a result of transportation delays and availability, labor availability and performance below 
expected levels (in addition to the other risks discussed in this section). We are currently experiencing, and expect to continue 
to experience, supply chain challenges, including labor availability issues, impacting our ability to obtain materials for our gas 
and electric projects, as well as our ability to ensure timely completion. 

Our  distribution,  transmission  and  generation  activities  involve  a  variety  of  inherent  hazards  and  operating  risks, 
including potential public safety risks.
Our gas distribution and transmission, electric generation, transmission and distribution activities, involve a variety of inherent 
hazards and operating risks, including, but not limited to, gas leaks and over-pressurization, downed power lines, stray electrical 
voltage,  excavation  or  vehicular  damage  to  our  infrastructure,  outages,  environmental  spills,  mechanical  problems  and  other 
incidents, which could cause substantial financial losses. These hazards and risks have resulted and may result in serious injury 
or loss of life to employees and/or the general public, significant damage to property, environmental pollution, impairment of 
our operations, adverse regulatory rulings and reputational harm, which in turn could lead to substantial business and financial 
losses.  The  location  of  pipeline  facilities,  including  regulator  stations,  liquefied  natural  gas  and  underground  storage,  or 
generation,  transmission,  substation  and  distribution  facilities  near  populated  areas,  including  residential  areas,  commercial 
business  centers  and  industrial  sites,  could  increase  the  level  of  damages  resulting  from  such  incidents.  Hazardous  incidents 
have subjected and may subject us to both civil and criminal litigation or administrative or other legal proceedings from time to 
time, which could result in substantial monetary judgments, fines, or penalties against us, be resolved on unfavorable terms, and 
require us to incur significant operational expenses. The occurrence of incidents has in certain instances adversely affected and 
could  in  the  future  adversely  affect  our  reputation,  cash  flows,  financial  position  and/or  results  of  operations.  We  maintain 
insurance against some, but not all, of these risks and losses.

We  currently  conduct  and  may  conduct  in  the  future  certain  operations  through  a  JV  arrangement  involving  third- 
party  investors  that  may  result  in  operational  impasses  or  litigation,  including  business  delays  as  a  result  of  such 
arrangements.
We  have  and  may  enter  into  JV  arrangements  involving  third-party  investors,  including  the  NIPSCO  Minority  Interest 
Transaction. As part of a JV arrangement, third-party investors may hold certain protective rights that may impact our ability to 
make certain decisions, restricting our operational and corporate flexibility. Any such third-party investors may have interests 
and objectives which may differ from ours, we may be unable to cause these third parties to take action that we believe would 
be in the JV’s best interest, and, accordingly, disputes may arise that may result in operational impasses or litigation, including 
business delays.

Failure to adapt to advances in technology, including alternative energy sources, and changes in laws or regulations to 
support such advances in technology or alternative energy sources, and our ability to manage such related costs could 
make us less competitive.

18

ITEM 1A. RISK FACTORS

NISOURCE INC.
A key element of our electric business model includes generating power at central station power plants to achieve economies of 
scale and produce power at a competitive cost. We continue to transition our generation portfolio in order to implement new 
and diverse technologies including renewable energy, distributed generation, energy storage, and energy efficiency designed to 
reduce  regulated  emissions.  Advances  in  technology  and  potential  competition  supported  by  changes  in  laws  or  regulations 
could reduce the cost of electric generation and provide retail alternatives causing power sales to decline and the value of our 
generating facilities to decline.

Our natural gas business model depends on widespread utilization of natural gas for space heating as a core driver of revenues. 
Alternative  energy  sources,  new  technologies  or  alternatives  to  natural  gas  space  heating,  including  cold  climate  heat  pumps 
and/or efficiency of other products, and potential competition supported by changes in laws or regulations could reduce demand 
and increase customer attrition, which could impact our ability to recover on our investments in our gas distribution assets.

Our  future  success  will  depend,  in  part,  on  our  ability  to  anticipate  and  successfully  adapt  to  technological  changes,  to  offer 
services  that  meet  customer  demands  and  evolving  industry  standards,  including  environmental  impacts  associated  with  our 
products and services, and to recover all, or a significant portion of, remaining investments in retired assets. A failure by us to 
effectively adapt to changes in technology, successfully implement such changes, and manage the related costs could harm the 
ability of our products and services to remain competitive in the marketplace and could have a material adverse impact on our 
business, results of operations and financial condition. Furthermore, if these changes do not provide the anticipated benefits or 
meet  customer  demands,  such  failure  could  materially  adversely  affect  our  business  model  as  well  as  impact  results  of 
operations and financial condition.

Increased  dependency  on  technology  may  hinder  our  business  operations  and  adversely  affect  our  financial  condition 
and results of operation if such technology fails.
We use a variety of technological tools and systems including both Company-owned information technology and technological 
services provided by outside parties. These tools and systems support critical functions including scheduling and dispatching of 
service  technicians,  automated  meter  reading  systems,  customer  care  and  billing,  operational  plant  logistics,  management 
reporting and external financial reporting. The failure of these or other similarly important technologies, or our inability to have 
these technologies supported, updated, expanded, recovered (including timely recovered), or integrated into other technologies, 
could  hinder  our  business  operations  and  adversely  impact  its  financial  condition  and  results  of  operations.  Although  the 
Company has, when possible, developed alternative sources of technology and built redundancy into its computer networks and 
tools,  there  can  be  no  assurance  that  these  efforts  would  protect  against  all  potential  issues  related  to  the  loss  of  any  such 
technologies.

Aging infrastructure may lead to disruptions in operations and increased capital expenditures and maintenance costs.
We have risks associated with aging electric and gas infrastructure. These risks can be driven by threats such as, but not limited 
to,  electrical  faults,  mechanical  failure,  internal  corrosion,  external  corrosion,  ground  movement  and  stress  corrosion  and/or 
cracking.  The  age  of  these  assets  may  result  in  a  need  for  replacement,  a  higher  level  of  maintenance  costs  or  unscheduled 
outages,  despite  efforts  by  us  to  properly  maintain  or  upgrade  these  assets  through  inspection,  scheduled  maintenance  and 
capital investment. In addition, the nature of the information available on aging infrastructure assets, which in some cases is 
incomplete,  may make  the  operation of the infrastructure, inspections, maintenance, upgrading and replacement of  the assets 
particularly  challenging.  Missing  or  incorrect  infrastructure  data  may  lead  to  (1)  difficulty  properly  locating  facilities,  which 
can result in excavator damage and operational or emergency response issues, and (2) configuration and control risks associated 
with the modification of system operating pressures in connection with turning off or turning on service to customers, which 
can  result  in  unintended  outages  or  operating  pressures.  Also,  additional  maintenance  and  inspections  are  required  in  some 
instances to improve infrastructure information and records and address emerging regulatory or risk management requirements, 
resulting in increased costs.

Supply chain issues related to shortages of materials, labor and transportation logistics may lead to delays in the maintenance 
and  replacement  of  aging  or  damaged  infrastructure,  which  could  increase  the  probability  and/or  impact  of  a  public  safety 
incident.  We  lack  diversity  in  suppliers  of  some  gas  materials.  While  we  have  implemented  contractual  protections  with 
suppliers  and  stockpile  some  materials  in  inventory  for  such  supply  risks,  we  may  not  be  effective  in  ensuring  that  we  can 
obtain adequate emergency supply on a timely basis in each state, that no compromises are being made on quality and that we 
have  alternate  suppliers  available.  The  failure  to  operate  our  assets  as  desired  could  result  in  interruption  of  electric  service, 
major component failure at generating facilities and electric substations, gas leaks and other incidents, and an inability to meet 
firm  service  and  compliance  obligations,  which  could  adversely  impact  revenues,  and  could  also  result  in  increased  capital 
expenditures and maintenance costs, which, if not fully recovered from customers, could negatively impact our financial results.

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We may be unable to obtain insurance on acceptable terms or at all, and the insurance coverage we do obtain may not 
provide protection against all significant losses.
Our  ability  to  obtain  insurance,  as  well  as  the  cost  and  coverage  of  such  insurance,  is  impacted  by  various  events  and 
developments affecting our industry and the financial condition and underwriting considerations of insurers. For example, some 
insurers have discontinued underwriting certain carbon-intensive energy-related businesses such as those in the coal industry or 
excluded coverage for specific perils such as wildfires or punitive damage risks. Certain perils, such as cyber liability, are now 
being  excluded  from  some  master  policies  for  property  and  casualty  insurance,  requiring,  where  we  have  the  ability, 
procurement  of  additional  policies  to  maintain  consistent  coverage  at  an  additional  cost.  Specific  natural  catastrophe  events, 
such as hail and tornado, may not be covered with the same limits as other perils in certain property policies, as full coverage 
for these events is unavailable in the marketplace without costly specialty policies. Insurance coverage may not continue to be 
available  at  limits,  rates  or  terms  acceptable  to  us.  In  addition,  our  insurance  is  not  sufficient  or  effective  under  all 
circumstances  and  against  all  hazards  or  liabilities  to  which  we  are  subject.  Certain  types  of  damages,  expenses  or  claimed 
costs,  such  as  fines  and  penalties,  have  been  and  in  the  future  may  be  excluded  under  the  policies.  In  addition,  insurers 
providing insurance to us may raise defenses to coverage under the terms and conditions of the respective insurance policies 
that could result in a denial of coverage or limit the amount of insurance proceeds available to us. Any losses for which we are 
not  fully  insured  or  that  are  not  covered  by  insurance  at  all  could  materially  adversely  affect  our  results  of  operations,  cash 
flows and financial position.

Aspects of the implementation of our electric generation strategy, including the timing of the retirement of our coal 
generation units or the addition of new generation resources, may be delayed and may not achieve intended results. 
We intend to retire the remaining two coal units  at R.M. Schahfer Generating Station by the end of 2025 and the  remaining 
coal-fired  generation  by  the  end  of  2028,  to  be  replaced  by  lower-cost,  reliable  and  cleaner  options.  Our  2021  Integrated 
Resource Plan (“2021 Plan”) validated the activities underway pursuant to our prior Integrated Resource Plans and calls for the 
retirement of the Michigan City Generating Station, replacement of existing vintage gas peaking facilities at the R.M. Schahfer 
Generating Station and upgrades to the electric transmission system. Macro supply chain issues and U.S. federal policy actions 
could  create  uncertainty  around  the  availability  of  key  input  materials  necessary  to  develop  and  place  our  renewable  energy 
projects in service. 

In the U.S., solar industry supply chain issues include the U.S. Department of Commerce regulations related to antidumping 
and countervailing duties circumvention, the Uyghur Forced Labor Protection Act, Section 201 Tariffs and persistent general 
global supply chain and labor availability issues. The most prominent effect of these issues is the curtailment of imported solar 
panels and other key components required to complete utility scale solar projects in the U.S. Any available solar panels may not 
meet  the  cost  and  efficiency  standards  of  our  currently  approved  projects  and  the  incremental  cost  may  not  be  recoverable 
through  customer  rates.  As  a  result  of  the  challenges  in  obtaining  solar  panels,  many  solar  projects  in  the  U.S.  have  been 
delayed or canceled. As we are in the midst of a transition to an electric generation portfolio with more renewable resources, 
including solar, our projects are vulnerable to the effects of these issues.

Our expectation has been that renewable or alternative energy sources would be some of the primary ways in which we will 
meet our electric generation capacity and reliability obligations to the MISO market and reliably serve our customers when we 
retire  our  coal  generation  capacity.  The  uncertainty  surrounding  the  completion  of  generation  resource  projects  could  create 
significant  risks  for  us  to  reliably  meet  our  capacity  and  energy  obligations  to  MISO  and  to  provide  reliable  and  affordable 
energy  to  our  customers.  Any  additional  delays  to  the  completion  dates  of  our  planned  and  approved  solar  projects  or  other 
electric generation projects, including our proposed gas peaking facility could impact our capacity position and our ability to 
meet our resource adequacy obligations to MISO. Delays to the completion dates of our projects could also include delays in 
the financial return of certain investments and impact the overall timing of our electric generation transition.

Our electric generation strategy may require additional investment to meet our MISO obligations and may require significant 
future capital expenditures, operating costs and charges to earnings that may negatively impact our financial position, financial 
results and cash flows. An inability to secure and deliver on renewable projects has negatively impacted, and could in the future 
negatively impact, our generation transition timeline and could negatively impact our achievement of decarbonization goals and 
reputation.

Our capital projects and programs subject us to construction and supply risks, and are subject to regulatory oversight, 
including requirements for permits, approvals and certificates from various governmental agencies.

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Our  business  requires  substantial  capital  expenditures  for  investments  in,  among  other  things,  capital  improvements  to  our 
electric generating facilities, electric and natural gas distribution infrastructure, natural gas storage and other projects, including 
projects for environmental compliance. As we undertake these projects and programs, we may be unable to complete them on 
schedule or at the anticipated costs. Additionally, we may construct or purchase some of these projects and programs to capture 
anticipated future growth, which may not materialize, and may cause the construction to occur over an extended period of time.

Construction risks include, but are not limited to, changes in the availability or costs of materials, equipment, commodities or 
labor  (including  changes  to  tariffs  on  materials),  delays  caused  by  construction  incidents  or  injuries,  work  stoppages,  poor 
initial  cost  estimates,  unforeseen  engineering  issues,  and  general  contractors  and  subcontractors  not  performing  as  required 
under their contracts.

We are monitoring risks related to increasing delivery lead times for certain construction and other materials, increasing risk 
associated with the unavailability of materials due to global shortages in raw materials and issues with transportation logistics, 
and risk of decreased construction labor productivity in the event of disruptions in the availability of materials critical to our gas 
and electric operations. Our efforts to enhance our resiliency to supply chain shortages may not be effective. We continue to see 
increasing prices associated with certain materials, equipment and products, which impacts our ability to complete major capital 
projects at the cost that was planned and approved. To the extent that delays occur, costs increase, costs become unrecoverable 
or  recovery  is  delayed,  or  we  otherwise  become  unable  to  effectively  manage  our  affordability  and  complete  our  capital 
projects,  our  business  operations,  results  of  operations,  cash  flows,  and  financial  condition  may  be  adversely  affected.  In 
addition,  to  the  extent  that  delays  occur  on  projects  that  target  system  integrity,  the  risk  of  an  operational  incident  could 
increase. 

Our  existing  and  planned  capital  projects  require  numerous  permits,  approvals  and  certificates  from  federal,  state,  and  local 
governmental  agencies,  including  obtaining  necessary  rights-of-way,  easements  and  transmissions  connections,  as  well  as 
complying with various environmental statutes, rules and regulations, among other items. If there is a delay in obtaining any 
required regulatory approvals or if we fail to obtain or maintain any required approvals or to comply with any applicable laws 
or regulations, we may not be able to construct or operate our facilities, we may be forced to incur additional costs or we may 
be unable to recover any or all amounts invested in a project. We also may not receive the anticipated increases in revenue and 
cash flows resulting from such projects and programs until after their completion.

A significant portion of the gas and electricity we sell is used by residential and commercial customers for heating and 
air  conditioning.  Accordingly,  fluctuations  in  weather,  gas  and  electricity  commodity  costs,  and  economic  conditions 
impact customer demand.
Energy sales are sensitive to variations in weather. Forecasts of energy sales are based on “normal” weather, which represents a 
long-term historical average. Significant variations from normal weather resulting from climate change or other factors could 
have, and have had, a material impact on energy sales. Additionally, residential usage, and to some degree commercial usage, is 
sensitive to fluctuations in commodity costs for gas and electricity, whereby usage declines with increased costs, thus affecting 
our financial results. Commodity prices have been and may continue to be volatile as described in more detail in the below risk 
factor.  Rising  gas  costs  could  heighten  regulator  and  stakeholder  sensitivity  relative  to  the  impact  of  base  rate  increases  on 
customer  affordability.  Lastly,  residential  and  commercial  customers’  usage  is  sensitive  to  economic  conditions  and  factors 
such as recession, inflation, unemployment, consumption and consumer confidence. Therefore, prevailing economic conditions 
affecting the demand of our customers may in turn affect our financial results.

Fluctuations  in  the  price  of  energy  commodities  or  their  related  transportation  costs,  or  an  inability  to  obtain  an 
adequate, reliable and cost- effective fuel supply may impact our ability to meet customer demand.
Our  current  electric  generating  fleet  has  dependencies  on  coal  and  natural  gas  for  fuel,  and  our  gas  distribution  operations 
purchase  and  resell  a  portion  of  the  natural  gas  we  deliver  to  our  customers.  These  energy  commodities  are  subject  to  price 
fluctuations and fluctuations in associated transportation costs. We use physical hedging through the use of storage assets and 
use financial products in certain jurisdictions in order to offset fluctuations in commodity supply prices. We rely on regulatory 
recovery mechanisms in the various jurisdictions in order to fully recover the commodity costs incurred in selling energy to our 
customers. While we have historically been successful in the recovery of costs related to such commodity prices, there can be 
no assurance that such costs will be fully recovered through rates in a timely manner.

In addition, we depend on electric transmission lines, natural gas pipelines, and other transportation and storage facilities owned 
and operated by third parties to deliver the electricity and natural gas we sell to wholesale markets, supply natural gas to our gas 
storage and electric generation facilities, and provide retail energy services to our customers. If transportation is disrupted, if 

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capacity is inadequate or if supply is interrupted due to issues at the wellhead, we may be unable to sell and deliver our gas and 
electric services to some or all of our customers. As a result, we may be required to procure additional or alternative electricity 
and/or natural gas supplies at then-current market rates, which, if recovery of related costs is disallowed, could have a material 
adverse effect on our businesses, financial condition, cash flows, results of operations and/or prospects.

Failure  to  attract,  retain  or  re-skill  an  appropriately  qualified  workforce,  and  maintain  good  labor  relations,  could 
adversely impact safety, service reliability, and customer satisfaction.
Although  our  attrition  rates  have  stabilized  and  are  improving,  we  face  increased  competition  for  talent  which  may  result  in 
longer hire times or increased cost due to the competitive nature of certain positions.

We operate in an industry that requires many of our employees and contractors to possess unique technical skill sets. An aging 
workforce without appropriate replacements, the mismatch of skill sets to future needs, the unavailability of talent for internal 
positions  and  the  unavailability  of  contract  resources  may  lead  to  operating  challenges  or  increased  costs.  These  operating 
challenges  include  lack  of  resources,  loss  of  knowledge  and  a  lengthy  time  period  associated  with  skill  development.  For 
example, certain skills, such as those related to construction, maintenance and repair of transmission and distribution systems, 
are in high demand and have a limited supply. Current and prospective employees may determine that they do not wish to work 
for us due to market, economic, employment or other conditions, including those related to organizational changes as described 
in the risk factor below.

Further,  as  part  of  our  strategic  plan,  which  includes  enhanced  technology,  transmission  and  distribution  investments,  and  a 
reduction in reliance on coal-fired generation, we will need to attract and retain personnel that are qualified to implement such a 
strategy  and  may  need  to  retrain  or  re-skill  certain  employees  to  support  our  long-term  objectives.  Additionally,  successful 
implementation  of  our  strategic  plan  is  dependent  on  our  ability  to  recruit  and  retain  key  executive  officers  to  oversee  its 
progress.

A significant portion of our workforce is subject to collective bargaining agreements. Our collective bargaining agreements are 
generally negotiated on an operating company basis with some companies having multiple bargaining agreements, which may 
span  different  geographies.  Any  failure  to  reach  an  agreement  on  new  labor  contracts  or  to  renegotiate  these  labor  contracts 
might  result  in  strikes,  boycotts  or  other  labor  disruptions.  Our  workforce  continuity  plans  may  not  be  effective  in  avoiding 
work stoppages that may result from labor negotiations or mass resignations. Labor disruptions, strikes or significant negotiated 
wage  and  benefit  increases,  whether  due  to  union  activities,  employee  turnover  or  otherwise,  could  have  a  material  adverse 
effect on our businesses, results of operations and/or cash flows.

Failure  to  attract,  retain,  or  re-skill  qualified  employees,  including  the  ability  to  transfer  significant  internal  historical 
knowledge and expertise to the new employees, could result in a loss of momentum, loss of high-level employees to our peers 
and could materially adversely affect our business, results of operations, cash flow and financial condition. If we are unable to 
successfully  attract  and  retain  an  appropriately  qualified  workforce  and  maintain  satisfactory  labor  relations,  safety,  service 
reliability, customer satisfaction and our results of operations could be adversely affected.

If  we  cannot  effectively  manage  new  initiatives  and  organizational  changes,  we  will  be  unable  to  address  the 
opportunities and challenges presented by our strategy and the business and regulatory environment.
In order to execute on our sustainable growth strategy and enhance our culture of ongoing continuous improvement, we must 
effectively  manage  the  complexity  and  frequency  of  new  initiatives  and  organizational  changes.  The  organizational  changes 
from our transformation initiatives have put short-term pressure on employees due to the volume and pace of change and, in 
some cases, the loss of personnel. Front-line workers are being impacted by the variety of process and technology changes that 
are currently in progress.

If we are unable to make decisions quickly, assess our opportunities and risks, and successfully implement new governance, 
managerial  and  organizational  processes  as  needed  to  execute  our  strategy  in  this  increasingly  dynamic  and  competitive 
business and regulatory environment, our financial condition, results of operations and relationships with our business partners, 
regulators, customers, employees and stockholders may be negatively impacted.

Actions  of  activist  stockholders  could  negatively  affect  our  business  and  stock  price  and  cause  us  to  incur  significant 
expenses.
We  may  be  subject  to  actions  or  proposals  from  activist  stockholders  or  others  that  may  not  be  aligned  with  our  long-term 
strategy  or  the  interests  of  our  other  stockholders.  Our  response  to  suggested  actions,  proposals,  director  nominations  and 

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contests for the election of directors by activist stockholders could disrupt our business and operations, divert the attention of 
our  board  of  directors,  management  and  employees,  and  be  costly  and  time-consuming.  Potential  actions  by  activist 
stockholders  or  others  may  interfere  with  our  ability  to  execute  our  strategic  plans;  create  perceived  uncertainties  as  to  the 
future direction of our business or strategy; cause uncertainty with our regulators; make it more difficult to attract and retain 
qualified  personnel;  and  adversely  affect  our  relationships  with  our  existing  and  potential  business  partners.  Any  of  the 
foregoing could adversely affect our business, financial condition and results of operations. Also, we may be required to incur 
significant fees and other expenses related to responding to stockholder activism, including for third-party advisors. Moreover, 
our  stock  price  could  be  subject  to  significant  fluctuation  or  otherwise  be  adversely  affected  by  the  events,  risks  and 
uncertainties of any stockholder activism.

We  outsource  certain  business  functions  to  third-party  suppliers  and  service  providers,  and  may  be  impacted  by 
substandard performance or quality by third parties.
Utilities  rely  on  extensive  networks  of  business  partners  and  suppliers  to  support  critical  enterprise  capabilities  across  their 
organizations.  Like  other  companies  in  the  utilities  industry,  we  outsource  certain  services  to  third  parties  in  areas  including 
construction services, information technology, materials, fleet, environmental, operational services, corporate and other areas. 
We are seeing slowing deliveries from suppliers and in some cases materials and labor shortages for capital projects. In addition 
to  delays  and  unavailability,  at  times,  outsourcing  of  services  to  third  parties  could  expose  us  to  inferior  service  quality  or 
substandard  deliverables,  which  may  result  in  non-compliance  (including  with  applicable  legal  requirements  and  industry 
standards),  interruption  of  service,  accidents,  or  reputational  harm,  which  could  negatively  impact  our  business,  financial 
condition and results of operations. The nature of indirect supply chain, including a potential lack of control or certain visibility 
into sourcing by vendors, may also impact our ability to serve customers in a safe, reliable and cost-effective manner. These 
risks  include  the  risk  of  operational  failure,  reputation  damage,  disruption  due  to  new  supply  chain  disruptions,  exposure  to 
significant commercial losses and fines and poorly positioned and distressed suppliers. If we continue to see delayed deliveries 
and shortages or if any other difficulties in the operations of these third-party suppliers and service providers, including their 
systems,  were  to  occur,  they  could  adversely  affect  our  results  of  operations,  or  adversely  affect  our  ability  to  work  with 
regulators, unions, customers, or employees.

A cyber-attack or security breach on any of our or certain third-party technology systems, including but not limited to 
information  systems,  infrastructure,  software  and  hardware,  upon  which  we  rely  may  adversely  affect  our  ability  to 
operate, could lead to a loss or misuse of confidential and proprietary information, or potential liability.
We are reliant on technology to run our business, which is dependent upon technology systems to process critical information 
necessary  to  conduct  various  elements  of  our  business,  including  the  generation,  transmission  and  distribution  of  electricity; 
operation of our gas pipeline facilities; and the recording and reporting of commercial and financial transactions to regulators, 
investors and other stakeholders. In addition to general information and cybersecurity risks that all large corporations face (e.g., 
ransomware,  malware,  unauthorized  access  attempts,  phishing  attacks,  malicious  intent  by  insiders,  third-party  software 
vulnerabilities and inadvertent disclosure of sensitive information), the utility industry faces evolving and increasingly complex 
cybersecurity risks associated with protecting electric grid and natural gas infrastructure as well as sensitive and confidential 
customer  and  employee  information.  Deployment  of  new  business  technologies,  along  with  maintaining  legacy  technology, 
represents  a  large-scale  opportunity  for  attacks  on  our  information  systems  and  confidential  customer  and  employee 
information, as  well as on  the integrity of  the energy grid and the natural gas infrastructure. Increasing large-scale  corporate 
cyber-attacks in conjunction with more sophisticated threats continue to challenge power and utility companies. Additionally, 
international conflicts, as well as increased surveillance activity from China, has increased the likelihood of a cyber-attack or 
security breach on critical infrastructure systems.

Additionally, our information systems experience ongoing, often sophisticated, cyber-attacks or security breaches by a variety 
of  sources,  including  foreign  sources,  with  the  apparent  aim  to  breach  our  cyber-defenses.  While  we  have  implemented  and 
maintain  a  cybersecurity  program  designed  to  protect  our  information  technology,  operational  technology,  and  data  systems 
from such cyber-attacks or security breaches, our cybersecurity program does not prevent all breaches, cyber-attack or security 
breach incidents. We have experienced an increase in the number of attempts by external parties to access our networks or our 
company data without authorization. We have experienced, and expect to continue to experience, cybersecurity intrusions and 
attacks or security breaches to our information systems. To our knowledge, none of these intrusions or attacks have resulted in a 
material  cybersecurity  intrusion  or  data  breach.  The  risk  of  a  disruption  or  breach  of  our  operational  technology,  or  the 
compromise of the data processed in connection with our operations, through cybersecurity breach or ransomware attack has 
increased  as  attempted  cyber-attacks  or  security  breaches  have  advanced  in  sophistication  and  number  around  the  world. 
Technological complexities combined with advanced cyber- attack or security breach techniques, lack of cybersecurity hygiene 
and  human  error  can  result  in  a  cybersecurity  incident,  such  as  a  ransomware  attack.  Supplier  non-compliance  with 

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cybersecurity controls can also result in a cybersecurity incident. We are aware of vendor cyber incidents that have impacted 
our business, although no such events have had a material impact. Cyber-attacks or security breaches can occur at any point in 
the supply chain or with any suppliers, and future supplier non-compliance with cybersecurity controls could result in material 
cybersecurity incidents. In addition, we use unmanned aircraft systems (UAS) or drones in our business operations. UASs are 
also being used for malicious activities and the cybersecurity risk in connection with operating UASs is increasing.

In  addition,  we  collect  and  retain  personally  identifiable  information  of  our  customers  and  employees.  Customers  and 
employees expect that we will adequately protect their personal information. The legal and regulatory environment surrounding 
information security and privacy is increasingly demanding. 

Although  we  attempt  to  maintain  adequate  defenses  to  these  cyber-attacks  or  security  breaches  and  work  through  industry 
groups and trade associations to identify common threats and assess our countermeasures, a security breach of our information 
systems or operational technology, or a security breach of the information systems of our customers, suppliers or others with 
whom  we  do  business,  could  (i)  adversely  impact  our  ability  to  safely  and  reliably  deliver  electricity  and  natural  gas  to  our 
customers through our generation, transmission and distribution systems and potentially negatively impact our compliance with 
certain mandatory reliability and gas flow standards, (ii) subject us to reputational and other harm or liabilities associated with 
theft or inappropriate release of certain types of information such as system operating information or information, personal or 
otherwise, relating to our customers or employees, (iii) impact our ability to manage our businesses, and/or (iv) subject us to 
legal and regulatory proceedings and claims from third parties, in addition to remediation costs, any of which, in turn, could 
have  a  material  adverse  effect  on  our  businesses,  cash  flows,  financial  condition,  results  of  operations  and/or  prospects. 
Although  we  do  maintain  cybersecurity  insurance,  it  is  possible  that  such  insurance  will  not  adequately  cover  any  losses  or 
liabilities we may incur as a result of a cybersecurity incident.

Compliance with and changes in cybersecurity requirements have a cost and operational impact on our business, and 
failure to comply with such laws and regulations could adversely impact our reputation, results of operations, financial 
condition and/or cash flows.
As  cyber-attacks  or  security  breaches  are  becoming  more  sophisticated,  critical  infrastructure  assets,  including  pipelines  and 
electric infrastructure, may be specifically targeted. In 2021, the TSA announced two new security directives in response to a 
ransomware attack on the Colonial Pipeline that occurred earlier in the year. These directives, including updates or amendments 
to  such  TSA  directives,  require  critical  pipeline  owners  to  comply  with  mandatory  reporting  measures,  designate  a 
cybersecurity coordinator, provide vulnerability assessments, and ensure compliance with certain cybersecurity requirements. 
NiSource continues to work with the TSA to ensure that compliance with the security directives are being met. Additionally, on 
November 30, 2022, the TSA issued an advance notice of proposed rulemaking (ANPRM) seeking public comment on more 
comprehensive, formal cybersecurity regulations for the pipeline industry. Such directives or additional legal requirements may 
require expenditure of significant additional resources to respond to cyber-attacks or security breaches, to continue to modify or 
enhance protective measures, or to assess, investigate and remediate any critical infrastructure security vulnerabilities. Increased 
costs  and  the  operational  impacts  of  compliance  and  changes  in  cybersecurity  requirements,  including  any  failure  to  comply 
with government regulations or any failure in our cybersecurity protective measures may result in enforcement actions, all of 
which may have a material adverse effect on our business, results of operations and financial condition. In addition, there is no 
certainty that costs incurred related to securing against threats will be recovered through rates.

The  impacts  of  natural  disasters,  acts  of  terrorism,  acts  of  war,  civil  unrest,  accidents,  public  health  emergencies  or 
other catastrophic events may disrupt operations and reduce the ability to service customers.
A disruption or failure of natural gas distribution systems, or within electric generation, transmission or distribution systems, in 
the  event  of  a  major  hurricane,  tornado,  wildfire,  or  other  major  weather  event,  or  terrorist  attack,  acts  of  war,  international 
military invasions, including the political and economic disruption and uncertainty related to such terrorist attack, acts of war, 
or  international  military  invasions  (e.g.  Russia’s  military  invasion  of  Ukraine,  Israel/Hamas  conflict),  civil  unrest,  accident, 
public health emergency (e.g. pandemic), or other catastrophic event could cause delays in completing sales, providing services, 
or  performing  other  critical  functions.  We  have  experienced  disruptions  in  the  past  from  hurricanes  and  tornadoes  and  other 
events  of  this  nature.  Also,  companies  in  our  industry  face  a  heightened  risk  of  exposure  to  and  have  experienced  acts  of 
terrorism  and  vandalism.  Our  electric  and  gas  physical  infrastructure  may  be  targets  of  physical  security  threats  or  terrorist 
activities that could disrupt our operations. We have increased security given the current environment and may be required by 
regulators or by the future threat environment to make investments in security that we cannot currently predict. In addition, the 
supply chain constraints that we are experiencing could impact our ability to timely restore services. The occurrence of such 
events could materially adversely affect our business, financial position and results of operations. In accordance with customary 
industry practice, we maintain insurance against some, but not all, of these risks and losses. As a result, the amount and scope 

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NISOURCE INC.
of  insurance  coverage  maintained  against  losses  resulting  from  any  such  event  may  not  be  sufficient  to  cover  such  losses  or 
otherwise adequately compensate for any business disruptions that could result.

We are exposed to significant reputational risks, which make us vulnerable to a loss of cost recovery, increased litigation 
and negative public perception.
As a utility company, we are subject to adverse publicity focused on the reliability of our services, the speed with which we are 
able to respond effectively to electric outages, natural gas leaks or events and related accidents and similar interruptions caused 
by storm damage, physical or cybersecurity incidents, or other unanticipated events, as well as our own or third parties’ actions 
or  failure  to  act.  We  are  subject  to  prevailing  labor  markets  and  potential  high  attrition,  which  may  impact  the  speed  of  our 
customer  service  response.  We  are  also  facing  supply  chain  challenges,  the  impacts  of  which  may  adversely  impact  our 
reputation in several areas as described elsewhere in these risk factors. We are also subject to adverse publicity related to actual 
or perceived environmental impacts. If customers, legislators or regulators have or develop a negative opinion of us, this could 
result in less favorable legislative and regulatory outcomes or increased regulatory oversight, increased litigation and negative 
public  perception.  The  foregoing  may  have  adverse  effects  on  our  business,  results  of  operations,  cash  flow  and  financial 
condition.

The  physical  impacts  of  climate  change  and  the  transition  to  a  lower  carbon  future  are  impacting  our  business  and 
could materially adversely affect our results of operations.
Climate change is exacerbating risks to our physical infrastructure by increasing the frequency of extreme weather, including 
heat  stresses  to  power  lines,  cold  temperature  stress  to  our  electric  and  gas  systems,  and  storms  and  floods  that  damage 
infrastructure. In addition, climate change is likely to cause lake and river level changes that affect the manner in which services 
are currently provided and droughts or other limits on water used to supply services, and other extreme weather conditions. We 
have adapted and will continue to evolve our infrastructure and operations to meet current and future needs of our stakeholders. 
With  higher  frequency  of  these  and  other  possible  extreme  weather  events  it  may  become  more  costly  for  us  to  safely  and 
reliably deliver certain products and services to our customers. Further, as our generation profile increases geographically, it is 
potentially more vulnerable to certain weather hazards than centralized fossil generation, thereby increasing the frequency of 
weather impacts to overall electric reliability and such distributed renewables. Some of these costs may not be recovered. To the 
extent that we are unable to recover those costs, or if higher rates arising from recovery of such costs result in reduced demand 
for  services,  our  future  financial  results  may  be  adversely  impacted.  Further,  as  the  intensity  and  frequency  of  significant 
weather events increases, insurers may reprice or remove themselves from insuring risks for which the company has historically 
maintained insurance, resulting in increased cost or risk to us.

Our  strategy  may  be  impacted  by  policy  and  legal,  technology,  market  and  reputational  risks  and  opportunities  that  are 
associated  with  the  transition  to  a  lower-carbon  economy,  as  disclosed  in  other  risk  factors  in  this  section.  As  a  result  of 
increased  awareness  regarding  climate  change,  coupled  with  adverse  economic  conditions,  availability  of  alternative  energy 
sources,  including  private  solar,  microturbines,  fuel  cells,  energy-efficient  buildings  and  energy  storage  devices,  and  new 
regulations  restricting  emissions,  including  potential  regulations  of  methane  emissions,  some  consumers  and  companies  may 
use  less  energy,  meet  their  own  energy  needs  through  alternative  energy  sources  or  avoid  expansions  of  their  facilities, 
including natural gas facilities, which may result in less demand for our services. As these technologies become a more cost-
competitive  option  over  time,  whether  through  cost  effectiveness  or  government  incentives  and  subsidies,  certain  customers 
may choose to meet their own energy needs and subsequently decrease usage of our systems and services, which may result in, 
among other things, our facilities becoming less competitive and economical. Further, evolving investor sentiment related to the 
use  of  fossil  fuels  and  initiatives  to  restrict  continued  production  of  fossil  fuels  could  result  in  a  significant  impact  on  our 
electric generation and natural gas businesses in the future.

We are unable to forecast the future of commodity markets. Some of our baseload generation is dependent on natural gas and 
coal, and we pass through the costs for these energy sources to our customers. In addition, in our gas distribution business, we 
procure  natural  gas  on  behalf  of  certain  customers,  and  we  pass  through  the  actual  cost  of  the  gas  consumed.  Diminished 
investor  interest  in  funding  fossil  fuel  development  could  reduce  the  amount  of  exploration  and  production  of  natural  gas  or 
coal, or investment in gas transmission pipelines. Reduced production and transportation of natural gas could, in the long-term, 
lead to supply shortages leading to baseload generation outages. Given that we pass through commodity costs to customers, this 
could also create the potential for regulatory questions resulting from increased customer costs, reduced fossil fuel investment, 
due  to  evolving  investor  sentiment,  could  lead  to  higher  commodity  prices  and  shortages  impacting  our  generation  and  our 
reputation with regulators. Conversely, demand  for our services may increase as a result of customer changes in response  to 
climate change. For example, as the utilization of electric vehicles increases, demand for electricity may increase, resulting in 
increased usage of our systems and services.

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Any negative views with respect to our environmental practices or our ability to meet the challenges posed by climate change 
from regulators, customers, investors or legislators could harm our reputation and adversely affect the perceived value of our 
products  and  services.  Changes  in  policy  to  combat  climate  change,  and  technology  advancement,  each  of  which  can  also 
accelerate the implications of a transition to a lower carbon economy, may materially adversely impact our business, financial 
position, results of operations, and cash flows. For example, in February 2023, the Maryland Office of People's Counsel filed a 
petition  with  the  Maryland  PSC  seeking  an  investigation  regarding  planning,  practices,  and  future  operations  of  natural  gas 
suppliers  in  the  state  and  this  initiated  a  proceeding  related  to  Near-Term,  Priority  Actions  and  Comprehensive,  Long-Term 
Planning for Maryland's Gas Companies, and in December 2023 the Maryland Department of Environment proposed a Building 
Efficiency  Performance  Standard  regulation  that  could  require  buildings  of  a  certain  size  and  type  eliminate  Scope  1  GHG 
emissions by 2040.

We are subject to operational and financial risks and liabilities associated with the implementation and efforts to 
achieve our carbon emission reduction goals.
On November 7, 2022, we announced our goal of reaching net zero Scope 1 and 2 greenhouse gas emissions by 2040 (the “Net 
Zero  Goal”).  Achieving  the  Net  Zero  Goal  will  require  supportive  regulatory  and  legislative  policies,  favorable  stakeholder 
environments and advancement of technologies that are not currently economical to deploy, the impacts and costs of which are 
not fully understood at this time. NIPSCO’s electric generation transition is a key element of the Net Zero Goal. Our analysis 
and  plan  for  execution,  which  is  outlined  in  the  NIPSCO  2021  Integrated  Resource  Plan,  requires  us  to  make  a  number  of 
assumptions.  These  goals  and  underlying  assumptions  involve  risks  and  uncertainties  and  are  not  guarantees.  Should  one  or 
more of our underlying assumptions prove incorrect, our actual results and ability to achieve our emissions goal could differ 
materially from our expectations. Certain of the assumptions that could impact our ability to meet our emissions goal include, 
but are not limited to: the accuracy of current emission measurements, service territory size and capacity needs remaining in 
line with expectations; regulatory approval; impacts of future environmental regulations or legislation; impact of future GHG 
pricing  regulations  or  legislation,  including  a  future  carbon  tax  or  methane  fee;  price,  availability  and  regulation  of  carbon 
offsets; price of fuel, such as natural gas; cost of energy generation technologies, such as wind and solar, natural gas and storage 
solutions; adoption of alternative energy, including adoption of electric vehicles; rate of technology innovation with regards to 
alternative  energy  resources;  our  ability  to  implement  our  modernization  plans  for  our  pipelines  and  facilities;  the  ability  to 
complete and implement generation alternatives to NIPSCO’s coal generation and retirement dates of NIPSCO’s coal facilities 
by 2028; the ability to construct and/or permit new natural gas pipelines; the ability to procure resources needed to build at a 
reasonable cost, the lack of scarcity of resources and labor, project cancellations, construction delays or overruns and the ability 
to  appropriately  estimate  costs  of  new  generation;  impact  of  any  supply  chain  disruptions;  and  advancement  of  energy 
efficiencies.  Any  negative  opinions  with  respect  to  these  goals  or  our  environmental  practices,  including  any  inability  to 
achieve, or a scaling back of these goals, formed by regulators, customers, investors or legislators could harm our reputation 
and have an adverse effect on our financial condition.

FINANCIAL, ECONOMIC AND MARKET RISKS

We have substantial indebtedness which could adversely affect our financial condition.
Our business is capital intensive and we rely significantly on long-term debt to fund a portion of our capital expenditures and 
repay  outstanding  debt,  and  on  short-term  borrowings  to  fund  a  portion  of  day-to-day  business  operations.  We  had  total 
consolidated indebtedness of $14,127.9 million outstanding as of December 31, 2023. Our substantial indebtedness could have 
important consequences. For example, it could:

limit our ability to borrow additional funds or increase the cost of borrowing additional funds;
reduce  the  availability  of  cash  flow  from  operations  to  fund  working  capital,  capital  expenditures  and  other  general 

•
•
corporate purposes;
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•
transact such business;
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•
•
infrastructure investment program.

limit our flexibility in planning for, or reacting to, changes in the business and the industries in which we operate;
lead parties with whom we do business to require additional credit support, such as letters of credit, in order for us to 

place us at a competitive disadvantage compared to competitors that are less leveraged;
increase vulnerability to general adverse economic and industry conditions; and
limit our ability to execute on our growth strategy, which is dependent upon access to capital to fund our substantial 

Some  of  our  debt  obligations  contain  financial  covenants  related  to  debt-to-capital  ratios  and  cross-default  provisions.  Our 
failure to comply with any of these covenants could result in an event of default, which, if not cured or waived, could result in 
the acceleration of outstanding debt obligations. Additionally, non-compliance with debt covenants could adversely affect our 

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ability  to  obtain  future  borrowings  and  as  a  result  materially  adversely  affect  our  business,  financial  condition,  results  of 
operations, and liquidity. 

A  drop  in  our  credit  ratings  could  adversely  impact  our  cash  flows,  results  of  operation,  financial  condition  and 
liquidity.
The  availability  and  cost  of  credit  for  our  businesses  may  be  greatly  affected  by  credit  ratings.  The  credit  rating  agencies 
periodically review our ratings, taking into account factors such as our capital structure, earnings profile, and overall shifts in 
the economy or business environment. We are committed to maintaining investment grade credit ratings; however, there is no 
assurance we will be able to do so in the future. Our credit ratings could be lowered or withdrawn entirely by a rating agency if, 
in  its  judgment,  the  circumstances  warrant.  Any  negative  rating  action  could  adversely  affect  our  ability  to  access  capital  at 
rates  and  on  terms  that  are  attractive.  A  negative  rating  action  could  also  adversely  impact  our  business  relationships  with 
suppliers and operating partners, who may be less willing to extend credit or offer us similarly favorable terms as secured in the 
past under such circumstances.

Certain of our subsidiaries have agreements that contain “ratings triggers” that require increased collateral in the form of cash, a 
letter of credit or other forms of security for new and existing transactions if our credit ratings (including the standalone credit 
ratings  of  certain  of  our  subsidiaries)  are  dropped  below  investment  grade.  These  agreements  are  primarily  for  insurance 
purposes and for the physical purchase or sale of gas or power. As of December 31, 2023, the collateral requirement that would 
be  required  in  the  event  of  a  downgrade  below  the  ratings  trigger  levels  would  amount  to  approximately  $90.1  million.  In 
addition to agreements with ratings triggers, there are other agreements that contain “adequate assurance” or “material adverse 
change”  provisions  that  could  necessitate  additional  credit  support  such  as  letters  of  credit  and  cash  collateral  to  transact 
business.

If our or certain of our subsidiaries’ credit ratings were downgraded, especially below investment grade, financing costs and the 
principal amount of borrowings would likely increase due to the additional risk of our debt and because certain counterparties 
may require additional credit support as described above. Such amounts may be material and could adversely affect our cash 
flows, results of operations and financial condition. Losing investment grade credit ratings may also result in more restrictive 
covenants and reduced flexibility on repayment terms in debt issuances, lower share price and greater stockholder dilution from 
common equity issuances, in addition to reputational damage within the investment community.

Adverse  economic  and  market  conditions,  including  increases  in  inflation  or  interest  rates,  recession  or  changes  in 
investor  sentiment  could  materially  and  adversely  affect  our  business,  results  of  operations,  cash  flows,  financial 
condition and liquidity.
Deteriorating,  sluggish  or  volatile  economic  conditions  in  our  operating  jurisdictions  could  adversely  impact  our  ability  to 
maintain or grow our customer base and collect revenues from customers, which could reduce our revenue or growth rate and 
increase  operating  costs.  A  continued  economic  downturn  or  recession,  or  slowing  or  stalled  recovery  from  such  economic 
downturn or recession, may have a material adverse effect on our business, financial condition, or results of operations.

We rely on access to the capital markets to finance our liquidity and long-term capital requirements, including expenditures for 
our  utility  infrastructure  and  to  comply  with  future  regulatory  requirements,  to  the  extent  not  satisfied  by  the  cash  flow 
generated by our operations. We have historically relied on long-term debt and on the issuance of equity securities to fund a 
portion of our capital expenditures and repay outstanding debt, and on short-term borrowings to fund a portion of day-to-day 
business operations. Actions to reduce inflation, including raising interest rates, increase our cost of borrowing, which in turn 
could  make  it  more  difficult  to  obtain  financing  for  our  operations  or  investments  on  favorable  terms.  Successful 
implementation of our long-term business strategies, including capital investment, is dependent upon our ability to access the 
capital and credit markets, including the banking and commercial paper markets, on competitive terms and rates. An economic 
downturn  or  uncertainty,  market  turmoil,  changes  in  interest  rates,  changes  in  tax  policy,  challenges  faced  by  financial 
institutions, changes in our credit ratings, or a change in investor sentiment toward us or the utilities industry generally could 
adversely  affect  our  ability  to  raise  additional  capital  or  refinance  debt.  For  example,  because  NIPSCO’s  current  generating 
facilities substantially rely on coal for its operations, certain financial institutions may choose not to participate in our financing 
arrangements.  In  addition,  large  institutional  investors  may  choose  to  sell  or  choose  not  to  purchase  our  stock  due  to 
environmental,  social  and  governance  (“ESG”)  concerns  or  concerns  regarding  renewable  energy  supply  chain  challenges. 
Reduced access to capital markets, increased borrowing costs, and/or lower equity valuation levels could reduce future earnings 
per share and cash flows. In addition, any rise in interest rates may lead to higher borrowing costs, which may adversely impact 
reported earnings, cost of capital and capital holdings.

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If, in the future, we face limits to the credit and capital markets or experience significant increases in the cost of capital or are 
unable to access the capital markets, it could limit our ability to implement, or increase the costs of implementing, our business 
plan,  which,  in  turn,  could  materially  and  adversely  affect  our  results  of  operations,  cash  flows,  financial  condition  and 
liquidity.

Most of our revenues are subject to economic regulation and are exposed to the impact of regulatory rate reviews and 
proceedings.
Most of our revenues are subject to economic regulation at either the federal or state level. As such, the revenues generated by 
us are subject to regulatory review by the applicable federal or state authority. These rate reviews determine the rates charged to 
customers  and  directly  impact  revenues.  Our  financial  results  are  dependent  on  frequent  regulatory  proceedings  in  order  to 
ensure timely recovery of costs and investments. As described in more detail in the risk factor below, the outcomes of these 
proceedings are uncertain, potentially lengthy and could be influenced by many factors, some of which may be outside of our 
control, including the cost of providing service, the necessity of expenditures, the quality of service, regulatory interpretations, 
customer intervention, economic conditions and the political environment. Further, the rate orders are subject to appeal, which 
creates additional uncertainty as to the rates that will ultimately be allowed to be charged for services.

The actions of regulators and legislators could result in outcomes that may adversely affect our earnings and liquidity.
The  rates  that  our  electric  and  natural  gas  companies  charge  their  customers  are  determined  by  their  state  regulatory 
commissions and by the FERC. These state regulatory commissions also regulate the companies’ accounting, operations, the 
issuance of certain securities and certain other matters. The FERC also regulates the transmission of electric energy, the sale of 
electric energy at wholesale, accounting, issuance of certain securities and certain other matters, including reliability standards 
through the North American Electric Reliability Corporation (NERC).

Under state and federal law, our electric and natural gas companies are entitled to charge rates that are sufficient to allow them 
an opportunity to recover their prudently incurred operating and capital costs and a reasonable rate of return on invested capital, 
to attract needed capital and maintain their financial integrity, while also protecting relevant public interests. Our electric and 
natural  gas  companies  are  required  to  engage  in  regulatory  approval  proceedings  as  a  part  of  the  process  of  establishing  the 
terms  and  rates  for  their  respective  services.  Each  of  these  companies  prepares  and  submits  periodic  rate  filings  with  their 
respective regulatory commissions for review and approval, which allows for various entities to challenge our current or future 
rates, structures or mechanisms and could alter or limit the rates we are allowed to charge our customers. These proceedings 
typically  involve  multiple  parties,  including  governmental  bodies  and  officials,  consumer  advocacy  groups,  and  various 
consumers of energy, who have differing interests. Any change in rates, including changes in allowed rate of return, are subject 
to regulatory approval proceedings that can be contentious, lengthy, and subject to appeal. This may lead to uncertainty as to the 
ultimate  result  of  those  proceedings.  Established  rates  are  also  subject  to  subsequent  prudency  reviews  by  state  regulators, 
whereby various portions of rates could be adjusted, subject to refund or disallowed, including cost recovery mechanisms. The 
ultimate outcome and timing of regulatory rate proceedings could have a significant effect on our ability to recover costs or earn 
an adequate return. Adverse decisions in our proceedings could adversely affect our financial position, results of operations and 
cash flows.

There  can  be  no  assurance  that  regulators  will  approve  the  recovery  of  all  costs  incurred  by  our  electric  and  natural  gas 
companies,  including  costs  for  construction,  operation  and  maintenance,  and  compliance  with  current  and  future  changes  in 
environmental,  federal  pipeline  safety,  critical  infrastructure  and  cyber-security  laws  and  regulations.  Challenges  arise  with 
state regulators on inflationary pricing for electric and gas materials and potential price increases, ensuring that updated pricing 
for  electric  and  gas  materials  is  included  in  plans  and  regulatory  assumptions,  and  ensuring  there  is  a  regulatory  recovery 
model. There is debate among state regulators and other stakeholders over how to transition to a decarbonized economy and 
prudency arguments relative to investing in natural gas assets when the depreciable life of the assets may be shortened due to 
electrification.  The  inability  to  recover  a  significant  amount  of  operating  costs  could  have  an  adverse  effect  on  a  company’s 
financial position, results of operations and cash flows.

Changes to rates may occur at times different from when costs are incurred. Additionally, catastrophic events at other utilities 
could result in our regulators and legislators imposing additional requirements that may lead to additional costs or operational 
requirements for the companies.

In  addition  to  the  risk  of  disallowance  of  incurred  costs,  regulators  may  also  impose  downward  adjustments  in  a  company’s 
allowed ROE as well as assess penalties and fines. Regulators may reduce ROE to mitigate potential customer bill increases due 
to  items  unrelated  to  capital  investments.  These  actions  would  have  an  adverse  effect  on  our  financial  position,  results  of 
operations and cash flows.

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Our electric business is subject to mandatory reliability and critical infrastructure protection standards established by NERC and 
enforced  by  the  FERC.  The  critical  infrastructure  protection  standards  focus  on  controlling  access  to  critical  physical  and 
cybersecurity assets. Compliance with the mandatory reliability standards could subject our electric utilities to higher operating 
costs. In addition, compliance with PHMSA regulations, including the expected final ruling around leak detection and repair 
requirements could subject our gas utilities to higher operating costs and divert business resources from other activities in order 
to remain compliant. If our businesses are found to be in noncompliance, we could be subject to sanctions, including substantial 
monetary penalties, or damage to our reputation.

Changes in tax laws, as well as the potential tax effects of business decisions, could negatively impact our business, results of 
operations (including our expected project returns from our planned renewable energy projects), financial condition and cash 
flows.

Our business operations are subject to economic conditions in certain industries.
Business operations throughout our service territories have been and may continue to be adversely affected by economic events 
at the national and local level where our businesses operate. In particular, sales to large industrial customers, such as those in 
the steel, oil refining, industrial gas and related industries, are impacted by economic downturns and recession; geographic or 
technological  shifts  in  production  or  production  methods;  and  consumer  demand  for  environmentally  friendly  products  and 
practices.  The  U.S.  manufacturing  industry  continues  to  adjust  to  changing  market  conditions  including  international 
competition, inflation and increasing costs, government and societal pressure to decarbonization, and fluctuating demand for its 
products. In addition, our results of operations are negatively impacted by lower revenues resulting from higher bankruptcies, 
predominately focused on commercial and industrial customers not able to sustain operations through the economic disruptions 
related to the pandemic.

We  are  exposed  to  risk  that  customers  will  not  remit  payment  for  delivered  energy  or  services,  and  that  suppliers  or 
counterparties will not perform under various financial or operating agreements.
Our extension of credit is governed by a Corporate Credit Risk Policy, involves judgment by our employees and is based on an 
evaluation of customer, supplier, or counterparty’s financial condition, credit history and other factors. We monitor our credit 
risk exposure by obtaining credit reports and updated financial information for customers and suppliers, and by evaluating the 
financial  status  of  our  banking  partners  and  other  counterparties  by  reference  to  market-based  metrics  such  as  credit  default 
swap pricing levels, and to traditional credit ratings provided by the major credit rating agencies. Adverse economic conditions 
could result in an increase in defaults by customers, suppliers and counterparties We are also exposed to the risk that due to 
adverse  economic  conditions  one  or  more  suppliers  or  counterparties  may  fail  or  delay  the  performance  of  their  contractual 
obligations. such risks could negatively impact our business, financial condition and cash flow. 

We are a holding company and are dependent on cash generated by our subsidiaries to meet our debt obligations and 
pay dividends on our stock.
We are a holding company and conduct our operations primarily through our subsidiaries, which are separate and distinct legal 
entities.  Substantially  all  of  our  consolidated  assets  are  held  by  our  subsidiaries.  Accordingly,  our  ability  to  meet  our  debt 
obligations  or  pay  dividends  on  our  common  stock  and  preferred  stock  is  largely  dependent  upon  cash  generated  by  these 
subsidiaries. In the event a major subsidiary is not able to pay dividends or transfer cash flows to us, our ability to service our 
debt obligations or pay dividends could be negatively affected.

Capital market performance and other factors may decrease the value of benefit plan assets, which then could require 
significant additional funding and impact earnings.
The performance of the capital markets affects the value of the assets that are held in trust to satisfy future obligations under 
defined  benefit  pension  and  other  postretirement  benefit  plans.  We  have  significant  obligations  in  these  areas  and  hold 
significant assets in these trusts. These assets are subject to market fluctuations and may yield uncertain returns, which could 
fall below our projected rates of return. A decline in the market value of assets may increase the funding requirements of the 
obligations  under  the  defined  benefit  pension  plans.  Additionally,  changes  in  interest  rates  affect  the  liabilities  under  these 
benefit plans; as interest rates decrease, the liabilities increase, which could potentially increase funding requirements. Further, 
the  funding  requirements  of  the  obligations  related  to  these  benefits  plans  may  increase  due  to  changes  in  governmental 
regulations and participant demographics, including increased numbers of retirements or longer life expectancy assumptions, as 
well as voluntary early retirements. In addition, lower asset returns result in increased expenses. Ultimately, significant funding 
requirements  and  increased  pension  or  other  postretirement  benefit  plan  expenses  could  negatively  impact  our  results  of 
operations and financial position.

We have significant goodwill. Any future impairments of goodwill could result in a significant charge to earnings in a 
future period and negatively impact our compliance with certain covenants under financing agreements.

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In accordance with GAAP, we test goodwill for impairment at least annually and review our definite-lived intangible assets for 
impairment when events or changes in circumstances indicate its fair value might be below its carrying value. Goodwill is also 
tested for impairment when factors, examples of which include reduced cash flow estimates, a sustained decline in stock price 
or market capitalization below book value, indicate that the carrying value may not be recoverable and results in a significant 
charge  to  earnings.  We  cannot  predict  the  timing,  magnitude,  or  duration  of  such  changes.  In  general,  the  carrying  value  of 
goodwill would not be recoverable, in which case we may record a non-cash impairment charge, which could materially impact 
our results of operations and financial position.

A significant impairment charge in the future could impact the capitalization ratio covenant under certain financing agreements. 
We are subject to a financial covenant under our revolving credit facility, which requires us to maintain a debt to capitalization 
ratio that does not exceed 70%. As of December 31, 2023, the ratio was 58.2%.

LITIGATION, REGULATORY AND LEGISLATIVE RISKS

The outcome of legal and regulatory proceedings, investigations, inquiries, claims and litigation related to our business 
operations may have a material adverse effect on our results of operations, financial position or liquidity.
We are, or may be, involved in legal and regulatory proceedings, investigations, inquiries, claims and litigation in connection 
with  our  business  operations,  the  most  significant  of  which  are  summarized  in,  Note  19,  "Other  Commitments  and 
Contingencies,"  in  the  Notes  to  Consolidated  Financial  Statements.  While  we  have  insurance,  it  may  not  cover  all  costs  or 
expenses  incurred  relating  to  litigation.  Due  to  the  inherent  uncertainty  of  the  outcomes  of  such  matters,  there  can  be  no 
assurance that the resolution of any particular claim or proceeding would not have a material adverse effect on our results of 
operations, financial position or liquidity.

Our  businesses  are  subject  to  various  federal,  state  and  local  laws,  regulations,  tariffs  and  policies  and  a  failure  to 
comply with changes in, or new or different interpretations of, such laws, regulations, tariffs and policies could have an 
adverse impact on our business.
Our businesses are subject to various federal, state and local laws, regulations, tariffs and policies, including, but not limited to, 
those relating to natural gas pipeline safety, employee safety, the environment and our energy infrastructure. In particular, we 
are subject to significant federal, state and local regulations applicable to utility companies, including regulations by the various 
utility  commissions  in  the  states  where  we  serve  customers.  These  regulations  significantly  influence  our  operating 
environment, may affect our ability to recover costs from utility customers, and cause us to incur substantial compliance and 
other costs. Existing laws, regulations, tariffs and policies may be revised or become subject to new interpretations, and new 
laws, regulations, tariffs and policies may be adopted or become applicable to us and our operations. In some cases, compliance 
with new or different laws, regulations, tariffs and policies increases our costs or risks of liability. Supply chain constraints may 
challenge  our  ability  to  remain  in  compliance  if  we  cannot  obtain  the  materials  that  we  need  to  operate  our  business  in  a 
compliant  manner.  If  we  fail  to  comply  with  laws,  regulations  and  tariffs  applicable  to  us  or  with  any  changes  in  or  new 
interpretations of such laws, regulations, tariffs or policies, our financial condition, results of operations, regulatory outcomes 
and cash flows may be materially adversely affected.

Our businesses are regulated under numerous environmental laws and regulations. The cost of compliance with these 
laws  and  regulations,  and  changes  to  or  additions  to,  or  reinterpretations  of  the  laws  and  regulations,  could  be 
significant,  and  the  cost  of  compliance  may  not  be  recoverable.  Liability  from  the  failure  to  comply  with  existing  or 
changed laws and regulations could have a material adverse effect on our business, results of operations, cash flows and 
financial condition.
Our businesses are subject to extensive federal, state and local environmental laws and rules that regulate, among other things, 
air emissions, water usage and discharges, leak detection and repair, GHG and waste products such as CCR. Compliance with 
these legal obligations require us to make significant expenditures for installation of pollution control equipment, remediation, 
environmental  monitoring,  emissions  fees,  and  permits  at  many  of  our  facilities.  Furthermore,  if  we  fail  to  comply  with 
environmental laws and regulations or are found to have caused damage to the environment or persons, that failure or harm may 
result in the assessment of civil or criminal penalties and damages against us, injunctions to remedy the failure or harm, and the 
inability  to  operate  facilities  as  designed  and  intended.  Further,  failing  to  comply  with  such  laws  and  regulations  or  a 
determination that we have caused damage to the environment or persons, could result in reputational damage.

Existing  environmental  laws  and  regulations  may  be  revised  and  new  laws  and  regulations  may  be  adopted  or  become 
applicable to us, with an increasing focus on the impact of coal and natural gas facilities that may result in significant additional 
expense and operating restrictions on our facilities, which may not be fully recoverable from customers and could materially 
affect the continued economic viability of our facilities.

30

ITEM 1A. RISK FACTORS

NISOURCE INC.

An area of significant uncertainty and risk are potential changes to the laws concerning emission of GHG. While we continue to 
execute  our  plan  to  reduce  our  Scope  1  GHG  emissions  through  the  retirement  of  coal-fired  electric  generation,  increased 
sourcing of renewable energy, priority pipeline replacement, leak detection and repair, and other methods, and while we have 
set  a  Net  Zero  Goal,  GHG  emissions  are  anticipated  to  be  associated  with  energy  delivery  for  many  years.  Future  GHG 
legislation  and/or  regulation  related  to  the  generation  of  electricity  or  the  extraction,  production,  distribution,  transmission, 
storage and end use of natural gas could materially impact our gas supply, financial position, financial results and cash flows.

Another area of significant uncertainty and risk are the regulations concerning CCR. The EPA has issued regulations and plans 
to promulgate additional regulations concerning the management, transformation, transportation and storage of CCRs. NIPSCO 
is  also  incurring  or  will  incur  costs  associated  with  closing,  corrective  action,  and  ongoing  monitoring  of  certain  CCR 
impoundments.  Further,  a  release  of  CCR  to  the  environment  could  result  in  remediation  costs,  penalties,  claims,  litigation, 
increased compliance costs, and reputational damage. 

We currently have a pending application with the EPA to continue operation of a CCR impoundment that is tied to operation of 
R.M. Schahfer Generating Station Units 17 and 18 to the end of 2025, with the CCR impoundment closing by October 2028. In 
proposed  and  final  EPA  actions  denying  continued  operation  of  CCR  impoundments  at  other  utilities,  EPA  said  that  CCR 
impoundments should cease receipt of CCRs within 135 days of final EPA action unless certain conditions are demonstrated, 
such as potential reliability issues. In the event that approval is not obtained, future operations could be impacted.

The actual future expenditures to achieve environmental compliance depends on many factors, including the nature and extent 
of  impact,  the  method  of  improvement,  the  cost  of  raw  materials,  contractor  costs,  and  requirements  established  by 
environmental authorities. Changes or increases in costs and the ability to recover under regulatory mechanisms could affect 
our financial position, financial results and cash flows.

Changes  in  tax  laws  or  the  interpretation  thereof  and  challenges  to  tax  positions  could  adversely  affect  our  financial 
results.
We  are  subject  to  taxation  by  the  various  taxing  authorities  at  the  federal,  state  and  local  levels  where  we  do  business. 
Legislation  or  regulation  which  could  affect  our  tax  burden  could  be  enacted  or  interpreted  by  any  of  these  governmental 
authorities. The IRA imposed a 15 percent minimum tax rate on book earnings for corporations with higher than $1 billion of 
annual  income,  along  with  a  1  percent  excise  tax  on  corporate  stock  repurchases  while  providing  tax  incentives  to  promote 
various  clean  energy  initiatives.  Separately,  a  challenge  by  a  taxing  authority,  changes  in  taxing  authorities’  administrative 
interpretations,  decisions,  policies  and  positions,  our  ability  to  utilize  tax  benefits  such  as  carryforwards  or  tax  credits,  or  a 
deviation from other tax-related assumptions may cause actual financial results to deviate from previous estimates.

31

ITEM 1B. UNRESOLVED STAFF COMMENTS

NISOURCE INC.

None.

ITEM 1C. CYBERSECURITY

NiSource has implemented and maintains a comprehensive cybersecurity program that includes a variety of security controls 
and  measures  designed  to  identify,  assess,  and  manage  material  cybersecurity  risks.  The  program  is  a  part  of  NiSource’s 
enterprise  risk  management  strategy.  The  enterprise  risk  team  and  the  Risk  Management  Committee  review  material  risks  to 
any  NiSource  operating  company  based  on  perspectives  from  external  experts,  peer  surveys,  and  the  potential  impact  to 
NiSource’s enterprise assets and strategic objectives.

Risk events are classified based on both the timing of impact and NiSource’s ability to preventatively mitigate the risk. For the 
cybersecurity  risks  that  can  be  preventively  mitigated,  the  enterprise  risk  team  gathers  quarterly  updates  on  mitigation  gap 
closure  from  risk  owners.  The  Risk  Management  Committee  reviews  any  mitigation  gaps  identified  by  risk  owners  and 
approves or rejects the pace of mitigation activities as a statement of risk tolerance and then directs that mitigation activities be 
included in budgets and the business plan as appropriate.  

The NiSource cybersecurity program includes the following key components:

Risk assessment NiSource regularly assesses its cybersecurity risks to identify and prioritize the most significant threats. The 
risk assessment process considers a variety of factors, including those specific to the utility/energy industry, the types of data 
NiSource  collects  and  stores,  and  the  threats  posed  by  known  vulnerabilities.  NiSource  engages  third  parties  to  perform 
independent  assessments  of  its  cybersecurity  program,  provide  intelligence  about  the  threat  environment,  and  to  provide 
operational  assistance  in  managing  the  program.  Annually,  a  third-party  independent  assessment  is  performed  to  evaluate 
NiSource cybersecurity maturity against a framework of cybersecurity controls. NiSource also performs bi-annual penetration 
testing and social engineering assessments performed by a third-party.

Third-party risk management: NiSource performs cyber assessments periodically on third-party vendors and service providers 
with  whom  NiSource  shares  data,  relies  on  for  critical  business  functions,  or  provides  access  to  the  NiSource  network  or 
systems.  NiSource’s  Supply  Chain  function  works  with  legal  counsel  and  the  Cyber  function  to  periodically  update 
cybersecurity contractual provisions in its vendor agreements, with deviations from such provisions requiring approval from the 
Legal  Department  and  Cyber  function.  NiSource’s  Supplier  Code  of  Business  Conduct  requires,  among  other  things,  that 
suppliers  ensure  safe  and  secure  use  of  information  assets,  comply  with  applicable  law  relating  to  personal  information,  and 
adhering to standards relative to the use and protection of Company information, including that of our employees, customers, 
vendors and other stakeholders. In addition, all vendors and contractors that have access and/or connectivity to the NiSource 
environment must complete cybersecurity training annually.

Security  controls:  NiSource  has  implemented  a  variety  of  security  controls  to  mitigate  cybersecurity  risks.  These  controls 
include  technical  controls,  such  as  firewalls  and  intrusion  detection  systems,  as  well  as  administrative  controls,  such  as 
employee training and security awareness programs. To ensure cybersecurity controls, NiSource Operational Technology (OT) 
within  the  electric  business  adheres  to  the  North  American  Electric  Reliability  Corporation  Critical  Infrastructure  Protection 
(NERC CIP). Within the natural gas business, cybersecurity controls are managed and monitored based on the Transportation 
Security Administration (TSA) Security Directives.  

Incident  response:  NiSource  has  a  comprehensive  incident  response  plan  in  place  to  respond  to  cybersecurity  incidents.  The 
plan includes steps for detection, analysis, containment, eradication, and recovery from incidents, as well as steps for notifying 
affected individuals and regulators. 

The NiSource Board of Directors' Audit Committee has responsibility for oversight of the cybersecurity program and risks from 
cybersecurity  threats.  The  Audit  Committee  meets  quarterly  to  review  NiSource’s  cybersecurity  posture  and  make 
recommendations  for  improvement.  The  Chief  Information  Security  Officer  (CISO)  regularly  briefs  the  Audit  Committee  on 
cybersecurity  risks  and  the  efforts  to  address  them.  In  addition,  the  Board  of  Directors  is  briefed  regularly,  through  written 
reports and updates by the Audit Committee, about key and emerging cybersecurity risks. 

At  the  management  level,  the  CISO  leads  the  cybersecurity  program  and  is  responsible  for  assessing  and  managing 
cybersecurity risks. Our CISO has expertise and experience in cybersecurity derived from over 15 years of cyber related work 
experience and possess several certifications including Certified Information Systems Security Professional (CISSP), Certified 

32

ITEM 2. PROPERTIES

NISOURCE INC.

in Risk and Information Systems Control (CRISC), and Certified Information Systems Auditor (CISA). The CISO is supported 
by the NiSource Enterprise Security team which performs the cybersecurity function and engages directly on the prevention, 
detection, mitigation, and remediation of cybersecurity incidents. 

As of the date of filing this Annual Report on Form 10-K, NiSource is not aware of any material cybersecurity incidents during 
the past year. NiSource monitors the increasing sophistication of cybersecurity threats and continues to contribute resources to 
improve  its  cybersecurity  program  to  protect  its  information  systems  and  assets.  No  cybersecurity  program  is  effective  to 
identify and mitigate all threats, and NiSource cannot guarantee that it will be able to prevent all cybersecurity incidents. Such 
an incident could interrupt our normal operations and require us to incur significant costs to remediate any such incident and 
could have a material impact on our businesses, operations and financial condition. For more information regarding the risks 
associated with cybersecurity, see “A cyber-attack or security breach on any of our or certain third-party technology systems, 
including information systems, upon which we rely may adversely affect our ability to operate, could lead to a loss or misuse of 
confidential  and  proprietary  information,  or  potential  liability.”  included  in  Part  I,  “Item  1A.  Risk  Factors”  of  this  Annual 
Report on Form 10-K.

ITEM 2. PROPERTIES

Discussed below are the principal properties held by us and our subsidiaries as of December 31, 2023.

Gas Distribution Operations
Refer to Item 1, "Business - Gas Distribution Operations," of this report for further information on Gas Distribution Operations 
properties.

Electric Operations
Refer to Item 1, "Business - Electric Operations," of this report for further information on Electric Operations properties. 

Corporate and Other Operations
We own the Southlake Complex, our 325,000 square foot headquarters building located in Merrillville, Indiana.

Character of Ownership
Our  principal  properties  and  our  subsidiaries'  principal  properties  are  owned  free  from  encumbrances,  subject  to  minor 
exceptions,  none  of  which  are  of  such  a  nature  as  to  impair  substantially  the  usefulness  of  such  properties.  Many  of  our 
subsidiary offices in various communities served are occupied under leases. All properties are subject to routine liens for taxes, 
assessments and undetermined charges (if any) incidental to construction. It is our practice to regularly pay such amounts, as 
and when due, unless contested in good faith. In general, the electric lines, gas pipelines and related facilities are located on 
land  not  owned  by  us  or  our  subsidiaries,  but  are  covered  by  necessary  consents  of  various  governmental  authorities  or  by 
appropriate rights obtained from owners of private property. We do not, however, generally have specific easements from the 
owners of the property adjacent to public highways over, upon or under which our electric lines and gas distribution pipelines 
are located. At the time each of the principal properties was purchased, a title search was made. In general, no examination of 
titles as to rights-of-way for electric lines, gas pipelines or related facilities was made, other than examination, in certain cases, 
to verify the grantors’ ownership and the lien status thereof.

ITEM 3. LEGAL PROCEEDINGS

For a description of our legal proceedings, see Note 19, "Other Commitments and Contingencies - C. Legal Proceedings," in the 
Notes to Consolidated Financial Statements.  

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

33

PART II

ITEM  5.  MARKET  FOR  REGISTRANT’S  COMMON  EQUITY,  RELATED  STOCKHOLDER  MATTERS  AND  ISSUER 
PURCHASES OF EQUITY SECURITIES

NISOURCE INC.

NiSource’s common stock is listed and traded on the New York Stock Exchange under the symbol "NI." 

Holders of shares of NiSource’s common stock are entitled to receive dividends if and when declared by the Board out of funds 
legally available, subject to the prior dividend rights of holders of our preferred stock or the depositary shares representing such 
preferred stock outstanding, and if full dividends have not been declared and paid on all outstanding shares of preferred stock in 
any dividend period, no dividend may be declared or paid or set aside for payment on our common stock. The policy of the 
Board has been to declare cash dividends on a quarterly basis payable on or about the 20th day of February, May, August, and 
November. At its January 25, 2024 meeting, the Board declared a quarterly common dividend of $0.265 per share, payable on 
February 20, 2024 to holders of record on February 5, 2024.

Although  the  Board  currently  intends  to  continue  the  payment  of  regular  quarterly  cash  dividends  on  common  shares,  the 
timing and amount of future dividends will depend on the earnings of NiSource’s subsidiaries, their financial condition, cash 
requirements, regulatory restrictions, any restrictions in financing agreements and other factors deemed relevant by the Board. 
There can be no assurance that NiSource will continue to pay such dividends or the amount of such dividends.

As of February 14, 2024, NiSource had 15,832 common stockholders of record and 447,524,529 shares outstanding.

The  graph  below  compares  the  cumulative  total  shareholder  return  of  NiSource’s  common  stock  for  the  period  commencing 
December 31, 2018 and ending December 31, 2023 with the cumulative total return for the same period of the S&P 500 and the 
Dow Jones Utility indices.  

The foregoing performance graph is being furnished as part of this Annual Report on Form 10-K solely in accordance with the 
requirement  under  Rule  14a-3(b)(9)  to  furnish  stockholders  with  such  information,  and  therefore,  shall  not  be  deemed  to  be 
filed or incorporated by reference into any filings by NiSource under the Securities Act or the Exchange Act.

The total shareholder return for NiSource common stock and the two indices is calculated from an assumed initial investment of 
$100 and assumes dividend reinvestment.

Purchases of Equity Securities by Issuer and Affiliated Purchasers. For the three months ended December 31, 2023, no equity 
securities that are registered by NiSource Inc. pursuant to Section 12 of the Securities Exchange Act of 1934 were purchased by 
or on behalf of us or any of our affiliated purchasers.

34

Fiscal Year EndNiSource Inc.Total Shareholder Return Performance GraphNiSourceS & P 500DJ Utilities201820192020202120222023$50.00$75.00$100.00$125.00$150.00$175.00$200.00$225.00ITEM 6. RESERVED

NISOURCE INC.
Not applicable. 

35

ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS

NISOURCE INC.

Index
Executive Summary   ..............................................................................................................................................................
Summary of Consolidated Financial Results   ...................................................................................................................
Results and Discussion of Operations    ..................................................................................................................................
Gas Distribution Operations    .............................................................................................................................................
Electric Operations     ...........................................................................................................................................................
Liquidity and Capital Resources   ...........................................................................................................................................
Market Risk Disclosures   .......................................................................................................................................................
Other Information     .................................................................................................................................................................

Page
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38
39
40
43
47
51
52

EXECUTIVE SUMMARY

This  Management's  Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations  ("Management's  Discussion") 
includes  management’s  analysis  of  past  financial  results  and  certain  potential  factors  that  may  affect  future  results,  potential 
future risks and approaches that may be used to manage those risks. See "Note regarding forward-looking statements" and Item 
1A, "Risk Factors" at the beginning of this report for a list of factors that may cause results to differ materially.

This Management's Discussion is designed to provide an understanding of our operations and financial performance and should 
be read in conjunction with our Consolidated Financial Statements and related Notes to Consolidated Financial Statements in 
this Annual Report on Form 10-K.

We  are  an  energy  holding  company  under  the  Public  Utility  Holding  Company  Act  of  2005  whose  subsidiaries  are  fully 
regulated  natural  gas  and  electric  utility  companies  serving  customers  in  six  states.  We  generate  substantially  all  of  our 
operating  income  through  these  rate-regulated  businesses,  which  are  summarized  for  financial  reporting  purposes  into  two 
primary reportable segments: Gas Distribution Operations and Electric Operations.

Refer  to  the  "Business"  section  under  Item  1  of  this  Annual  Report  on  Form  10-K  and  Note  21,  "Business  Segment 
Information,"  in  the  Notes  to  Consolidated  Financial  Statements  for  further  discussion  of  our  regulated  utility  business 
segments.

Our goal is to develop strategies that benefit all stakeholders as we (i) focus on long-term infrastructure investment and safety 
programs  to  better  serve  our  customers,  (ii)  align  our  tariff  structures  with  our  cost  structure,  and  (iii)  address  changing 
customer energy demand. These strategies focus on improving safety and reliability, enhancing customer experience, pursuing 
regulatory  and  legislative  initiatives  to  increase  accessibility  for  customers  currently  not  on  our  gas  and  electric  service, 
ensuring  customer  affordability  and  reducing  emissions  while  generating  sustainable  returns.  The  safety  of  our  customers, 
communities  and  employees  remains  our  focus.  Serving  as  a  guiding  practice  for  our  SMS,  NiSource  is  certified  in 
conformance to the American Petroleum Institute Recommended Practice 1173, which is the foundation to our journey towards 
operational excellence.  

2023 Overview: In 2023, we continued to make significant progress towards our strategic and financial goals and objectives by 
achieving in-service status in June 2023 and substantial completion in August 2023 for our first two solar BTA projects, Indiana 
Crossroads  Solar  and  Dunns  Bridge  I.  We  continue  to  progress  on  the  remaining  portfolio  of  projects  that  will  enable  our 
electric  generation  transition.  During  the  year,  we  received  orders  for  four  cases:  Columbia  of  Virginia,  Columbia  of  Ohio, 
Columbia of Maryland, and NIPSCO Electric. In addition, the NIPSCO Gas rate case filed in 2023 is anticipated to be resolved 
in  the  third  quarter  of  2024.  These  cases  represent  balanced  outcomes  supporting  all  stakeholders.  Between  our  Gas 
Distribution  and  Electric  Operating  Segments,  we  added  22,000  customers.  We  also  invested  $1.5  billion  in  infrastructure 
modernization to enhance safe, reliable service, including replacement of 339 miles of distribution main and service lines, 34 
miles of underground cable and 1,942 electric poles.

We also made advancements in key strategic initiatives, described in further detail below.

Your  Energy,  Your  Future:  We  continue  to  advance  Your  Energy,  Your  Future  primarily  through  the  continuation  and 
enhancement  of  existing  programs,  such  as  retiring  and  replacing  remaining  coal-fired  electric  generation  by  2028  with  a 
balanced  mix  of  low  or  zero-emission  electric  generation,  ongoing  pipe  replacement  and  modernization  programs,  and 
deployment  of  advanced  leak  detection  and  repair.  Our  electric  generation  transition,  initiated  through  our  2018  Integrated 
Resource  Plan  ("2018  Plan")  is  well  underway,  and  we  are  continually  adjusting  to  the  dynamic  energy  landscape.  As  of 

36

ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.

December 31, 2023, we have executed and received IURC approval for BTAs and PPAs with a combined nameplate capacity 
of 1,950 MW and 1,400 MW, respectively, under the 2018 Plan. We have also taken contractual actions on a number of our 
other renewable projects to address the timing of these projects as well as consider the broad market issues facing the industry. 
We remain on track to retire R.M Schahfer's remaining two coal units by the end of 2025. On January 1, 2023, the provisions of 
the  IRA  became  effective.  On  January  17,  2024,  the  IURC  approved  full  ownership  of  the  Cavalry  and  Dunns  Bridge  II 
projects,  allowing  NIPSCO  to  leverage  provisions  of  the  IRA  to  monetize  tax  credits  for  the  benefit  of  customers  in  lieu  of 
utilizing tax equity partnerships. We are evaluating the impact of this legislation on our remaining projects, with potential to 
drive  increased  value  to  customers.  For  additional  information,  see  "Results  and  Discussion  of  Operations  -  Electric 
Operations," in this Management's Discussion.

In  2021,  we  announced  and  filed  with  the  IURC  the  Preferred  Energy  Resource  Plan  associated  with  our  2021  Integrated 
Resource Plan ("2021 Plan"). The 2021 Plan lays out a timeline to retire the Michigan City Generating Station by the end of 
2028. The 2021 Plan calls for the replacement of the retiring units with a diverse portfolio of resources including demand side 
management  resources,  incremental  solar,  stand-alone  energy  storage  and  upgrades  to  existing  facilities  at  the  Sugar  Creek 
Generating  Station,  among  other  steps.  Additionally,  the  2021  Plan  calls  for  a  new  natural  gas  peaking  facility  to  replace 
existing vintage gas peaking facilities at the R.M. Schahfer Generating Station to support system reliability and resiliency, and 
upgrades to to the electric transmission system. In September of 2023, we filed a request for issuance of a certificate of public 
convenience and necessity for an approximately 400 MW natural gas peaking generation facility with the IURC. The planned 
retirement of the two vintage gas peaking facilities at the R.M. Schahfer Generating Station is also expected to occur by the end 
of 2028. Final retirement dates for these units, as well as Michigan City, will be subject to MISO approval.

We  continue  to  enhance  safety  and  reduce  methane  emissions  on  our  gas  systems  through  modernization  programs  and 
utilization of advanced leak detection and repair. Advanced mobile methane-detection vehicles are being deployed across our 
service  territory.  These  vehicles  are  designed  to  identify  potential  natural  gas  leaks  using  proven  technology  that  is  more 
sensitive than traditional leak-detection equipment. Resources like these vehicles are advancing the company’s commitment to 
safety and reaching our goal of net zero greenhouse gas emissions by 2040. 

In  addition,  we  plan  to  advance  other  low-  or  zero-emission  energy  resources  and  technologies,  such  as  hydrogen  and 
renewable natural gas. In 2023, we launched a multi-phase pilot project at the Columbia Gas of Pennsylvania Training Center’s 
Safety Town to better understand the impact of blending hydrogen into the natural gas system. We have partnered with outside 
experts to conduct a series of field trials blending hydrogen with the natural gas system at various percentages. The blending 
system  allows  blending  from  0%  to  20%  hydrogen,  by  volume.  The  field  trials  have  initially  focused  on  the  customer 
experience and are now moving toward system operations and other procedures. This pilot is designed to help us understand 
hydrogen  blending  into  the  natural  gas  system,  identify  best  practices,  and  analyze  the  operational  and  safety  impact  on 
company infrastructure and customer appliances. Carbon offsets and renewable energy credits may also be used to assist with 
achieving GHG reductions and our Net Zero Goal.

NIPSCO  Minority  Interest  Transaction:  On  December  31,  2023,  we  consummated  the  closing  of  the  NIPSCO  Minority 
Interest Transaction and issued the 19.9% equity interest in NIPSCO Holdings II to BIP in exchange for a capital contribution 
of $2.16 billion in cash. Refer to Note 4, "Noncontrolling Interest," in the Notes to the Consolidated Financial Statements for 
more information on this transaction.

Transformation:  Our  enterprise-wide  transformation  roadmap  focuses  on  operational  excellence,  safety,  operation  and 
maintenance management, and unlocking efficiencies. We are committed to identifying and implementing initiatives that will 
enable us to streamline work and improve logistics company-wide. These efforts include investments in proven technologies 
backed  with  standardized  processes  that  will  change  the  way  we  plan,  schedule,  and  execute  work  in  the  field  and  how  we 
engage  and  provide  service  to  our  customers.  Taken  together,  all  of  our  optimization  initiatives  will  prioritize  safety  and 
continue to optimize our long-term growth profile.

Economic  Environment:  We  continue  to  monitor  risks  related  to  order  and  delivery  lead  times  for  construction  and  other 
materials,  potential  unavailability  of  materials  due  to  global  shortages  in  raw  materials,  and  decreased  construction  labor 
productivity  in  the  event  of  disruptions  in  the  availability  of  materials.  We  continue  to  see  increasing  prices  associated  with 
certain materials and supplies. To the extent that work plan delays occur or our costs increase, our business operations, results 
of  operations,  cash  flows,  and  financial  condition  could  be  materially  adversely  affected.  Refer  to  Item  1A.  Risk  Factors, 
"Financial, Economic and Market Risks" of this Annual Report on Form 10-K for further detail.

We are faced with increased competition for employee and contractor talent in the current labor market which has resulted in 
increased  costs  to  attract  and  retain  talent.  We  are  ensuring  that  we  use  all  internal  human  capital  programs  (development, 

37

ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.

leadership enablement programs, succession, performance management) to promote retention of our current employees along 
with having a competitive and attractive appeal for potential recruits. With a focus on workforce planning, we are evaluating 
our future talent footprint by creating flexible work arrangements where possible to ensure we have the right people, in the right 
role, and at the right time. Refer to Item 1A. Risk Factors, "Operational Risks" of this Annual Report on Form 10-K for further 
detail.

The market price of natural gas has been stable during the last half of 2023 at lower levels than 2022 and with little volatility. 
Similar to natural gas pricing, electric commodity costs have stayed subdued due to plentiful supplies of natural gas and coal 
and  the  growing  influence  of  renewable  generation  on  power  market  pricing.  Changes  in  commodity  prices  do  not  have  a 
material impact on our results of operations, however higher commodity prices can impact our cash flows and liquidity. For 
more information on our commodity price impacts, see Item 1A. Risk Factors, "Operational Risks" of this Annual Report on 
Form  10-K,  "Results  and  Discussion  of  Segment  Operations  -  Gas  Distribution  Operations,"  "Results  and  Discussion  of 
Segment Operations - Electric Operations," and "Market Risk Disclosures."

Due to rising interest rates, we experienced higher interest expense during 2023 compared to 2022 associated with short-term 
borrowings. We continue to evaluate our financing plan to manage interest expense and exposure to rates. For more information 
on interest rate risk, see "Market Risk Disclosures" and Item 1A. Risk Factors, "Financial, Economic and Market Risks" of this 
Annual Report on Form 10-K.

Summary of Consolidated Financial Results

A summary of our consolidated financial results for the years ended December 31, 2023, 2022 and 2021, are presented below:

Year Ended December 31, 
(in millions, except per share amounts)
Operating Revenues

Operating Expenses

Cost of energy

Other Operating Expenses

Total Operating Expenses

Operating Income 

Total Other Deductions, Net

Income Taxes

Net Income

Net (loss) income attributable to noncontrolling interest

Net Income attributable to NiSource

Preferred dividends and redemption premium

Net Income Available to Common Shareholders

2023

2022

2021

2023 vs. 2022

2022 vs. 2021

$ 

5,505.4  $ 

5,850.6  $ 

4,899.6  $ 

(345.2)  $ 

951.0 

Favorable (Unfavorable)

1,533.3 

2,676.6 

4,209.9 

1,295.5 

2,110.5 

2,474.3 

4,584.8 

1,265.8 

1,392.3 

2,500.4 

3,892.7 

1,006.9 

(481.6) 

(309.4) 

(300.3) 

139.5 

674.4 

(39.9) 

714.3 

(52.6) 

661.7 

164.6 

791.8 

(12.3) 

804.1 

(55.1) 

749.0 

117.8 

588.8 

3.9 

584.9 

(55.1) 

529.8 

577.2 

(202.3) 

374.9 

29.7 

(172.2) 

25.1 

(117.4) 

27.6 

(89.8) 

2.5 

(87.3) 

(718.2) 

26.1 

(692.1) 

258.9 

(9.1) 

(46.8) 

203.0 

16.2 

219.2 

— 

219.2 

0.49 

0.43 

Basic Earnings Per Share

Diluted Earnings Per Share

$ 

$ 

1.59  $ 

1.48  $ 

1.84  $ 

1.70  $ 

1.35  $ 

1.27  $ 

(0.25)  $ 

(0.22)  $ 

The majority of the costs of energy in both segments are tracked costs that are passed through directly to the customer, resulting 
in an equal and offsetting amount reflected in operating revenues.

The decrease in net income available to common shareholders during 2023 was primarily due to lower revenue resulting from 
the  effects  of  weather,  the  receipt  of  the  insurance  settlement  related  to  the  Greater  Lawrence  Incident  in  2022,  higher  other 
deductions  due  to  higher  interest  expense  in  2023,  partially  offset  by  lower  tax  expense  and  favorable  impact  from  net  loss 
attributable to noncontrolling interest. The decrease in preferred dividends during 2023 was due primarily to the redemption of 
Series A Preferred Stock in the second quarter 2023. See Note 6, "Equity," for additional information.

For  additional  information  on  operating  income  variance  drivers  see  "Results  and  Discussion  of  Operations"  for  Gas  and 
Electric Operations in this Management's Discussion. 

38

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.

Other Deductions, Net
The  change  in  Other  deductions,  net  in  2023  compared  to  2022  is  primarily  driven  by  higher  long-term  and  short-term  debt 
interest in 2023 and higher non-service pension costs offset by increases in AFUDC. See Note 7, "Short-Term Borrowings," 
Note 8, "Long-Term Debt," and Note 16, "Pension and Other Postemployment Benefits," in the Notes to Consolidated Financial 
Statements for additional information.

Income Taxes
The  decrease  in  income  tax  expense  in  2023  compared  to  the  same  period  in  2022  is  primarily  attributable  to  lower  pre-tax 
income.

Refer  to  Note  15,  "Income  Taxes,"  in  the  Notes  to  Consolidated  Financial  Statements  for  additional  information  on  income 
taxes and the change in the effective tax rate.

RESULTS AND DISCUSSION OF OPERATIONS

Presentation of Segment Information
Our  operations  are  divided  into  two  primary  reportable  segments:  Gas  Distribution  Operations  and  Electric  Operations.  The 
remainder  of  our  operations,  which  are  not  significant  enough  on  a  stand-alone  basis  to  warrant  treatment  as  an  operating 
segment, are presented as "Corporate and Other" within the Notes to the Consolidated Financial Statements and primarily are 
comprised of interest expense on holding company debt, and unallocated corporate costs and activities.

39

ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.
Gas Distribution Operations 

Financial and operational data for the Gas Distribution Operations segment for the years ended December 31, 2023, 2022 and 
2021, are presented below:

Year Ended December 31, (in millions)
Operating Revenues

Operating Expenses

Cost of energy

Operation and maintenance

Depreciation and amortization

(Gain) loss on sale of fixed assets and impairments, net

Other taxes

Total Operating Expenses

Operating Income

Revenues

Residential

Commercial

Industrial

Off-System

Other

Total

Sales and Transportation (MMDth)

Residential

Commercial

Industrial

Off-System

Other

Total

Heating Degree Days

Normal Heating Degree Days

% (Warmer) Colder than Normal

% (Warmer) Colder than Prior Year

Gas Distribution Customers

Residential

Commercial

Industrial

Other

Total

2023

2022

2021

2023 vs. 2022

2022 vs. 2021

$  3,732.7 

$  4,019.8 

$  3,183.5 

$ 

(287.1)  $ 

836.3 

Favorable (Unfavorable)

  1,087.0 

  1,061.3 

464.6 

— 

217.9 

1,534.8 

1,045.3 

415.9 

(103.9) 

211.9 

962.7 

993.8 

383.0 

8.7 

217.8 

  2,830.8 

3,104.0 

2,566.0 

$ 

901.9 

$ 

915.8 

$ 

617.5 

$  2,517.7 

$  2,609.6 

$  2,143.4 

855.3 

226.4 

60.7 

72.6 

942.4 

221.5 

192.9 

53.4 

731.0 

197.2 

71.3 

40.6 

$ 

$ 

447.8 

(16.0) 

(48.7) 

(103.9) 

(6.0) 

273.2 

(572.1) 

(51.5) 

(32.9) 

112.6 

5.9 

(538.0) 

(13.9)  $ 

298.3 

(91.9)  $ 

(87.1) 

4.9 

(132.2) 

19.2 

$  3,732.7 

$  4,019.8 

$  3,183.5 

$ 

(287.1)  $ 

215.4 

164.3 

517.1 

31.8 

0.3 

928.9 

4,583 

5,347 

249.0 

181.3 

490.7 

32.3 

0.3 

953.6 

5,436 

5,347 

231.2 

167.0 

507.1 

21.6 

0.3 

927.2 

5,002 

5,427 

 (14) %

 (16) %

 2 %

 9 %

 (8) %

 (2) %

(33.6) 

(17.0) 

26.4 

(0.5) 

— 

(24.7) 

(853) 

— 

466.2 

211.4 

24.3 

121.6 

12.8 

836.3 

17.8 

14.3 

(16.4) 

10.7 

— 

26.4 

434 

(80) 

  3,010,949 

  2,991,913 

  2,970,157 

19,036 

21,756 

254,866 

254,436 

253,987 

4,794 

4 

4,870 

3 

4,921 

4 

430 

(76) 

1 

449 

(51) 

(1) 

  3,270,613 

  3,251,222 

  3,229,069 

19,391 

22,153 

40

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.
Gas Distribution Operations (continued)

Comparability  of  operation  and  maintenance  expenses,  depreciation  and  amortization,  and  other  taxes  may  be  impacted  by 
regulatory, depreciation and tax trackers that allow for the recovery in rates of certain costs.

The underlying reasons for changes in our operating revenues and expenses from 2023 to 2022 are presented in the respective 
tables  below.  Please  refer  to  Part  II,  Item  7,  "Management's  Discussion  and  Analysis  of  Financial  Condition  and  Results  of 
Operations - Results and Discussion of Operations - Gas Distribution Operations," of the Company's 2022 Annual Report on 
Form 10-K for discussion of underlying reasons for changes in our operating revenues and expenses for 2022 versus 2021.

Changes in Operating Revenues (in millions)

New rates from base rate proceedings and regulatory capital programs

The effects of customer growth
Higher revenue related to off system sales
Increased customer usage
The effects of weather in 2023 compared to 2022
Other
Change in operating revenues (before cost of energy and other tracked items)
Operating revenues offset in operating expense
Lower cost of energy billed to customers
Lower tracker deferrals within operation and maintenance, depreciation, and tax
Reduction in gross receipts tax, offset in operating expenses
Total change in operating revenues

Favorable 
(Unfavorable)

2023 vs 2022

$ 

$ 

$ 

241.1 

7.5 
2.7 
1.5 
(59.9) 
7.4 
200.3 

(447.8) 
(31.2) 
(8.4) 
(287.1) 

Weather
In general, we calculate the weather-related revenue variance based on changing customer demand driven by weather variance 
from normal heating degree days, net of weather normalization mechanisms. Our composite heating degree days reported do 
not directly correlate to the weather-related dollar impact on the results of Gas Distribution Operations. Heating degree days 
experienced during different times of the year or in different operating locations may have more or less impact on volume and 
dollars depending on when and where they occur. When the detailed results are combined for reporting, there may be weather-
related dollar impacts on operations when there is not an apparent or significant change in our aggregated composite heating 
degree day comparison.

Throughput
The decrease in total volumes sold and transported in 2023 compared to 2022 of 24.7 MMDth is primarily attributable to the 
effects of warmer weather offset by increased industrial usage.

41

 
 
 
 
 
 
 
 
ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.
Gas Distribution Operations (continued)

Commodity Price Impact
Cost  of  energy  for  the  Gas  Distribution  Operations  segment  is  principally  comprised  of  the  cost  of  natural  gas  used  while 
providing transportation and distribution services to customers. All of our Gas Distribution Operations companies have state-
approved recovery mechanisms that provide a means for full recovery of prudently incurred gas costs. These are tracked costs 
that are passed through directly to the customer, and the gas costs included in revenues are matched with the gas cost expense 
recorded in the period. The difference is recorded on the Consolidated Balance Sheets as under-recovered or over-recovered gas 
cost to be included in future customer billings. Therefore, increases in these tracked operating expenses are offset by increases 
in operating revenues and have essentially no impact on net income. Certain Gas Distribution Operations companies continue to 
offer  choice  opportunities,  where  customers  can  choose  to  purchase  gas  from  a  third-party  supplier,  through  regulatory 
initiatives in their respective jurisdictions. 

Changes in Operating Expenses (in millions)

Property insurance settlement related to the Greater Lawrence Incident in 2022

Higher depreciation and amortization expense
Higher employee and administrative related expenses
Higher property tax 
Impact from Columbia of Ohio's rate case settlement
Higher expenses related to uncollectible customer accounts
Lower environmental remediation costs
Other
Change in operating expenses (before cost of energy and other tracked items)
Operating expenses offset in operating revenue
Lower cost of energy billed to customers
Lower tracker deferrals within operation and maintenance, depreciation, and tax
Increase in gross receipts tax
Total change in operating expense

Favorable 
(Unfavorable)

2023 vs 2022

$ 

$ 

$ 

(105.0) 

(50.6) 
(38.3) 
(14.9) 
(9.1) 
(3.8) 
12.4 
(4.9) 
(214.2) 

447.8 
31.2 
8.4 
273.2 

42

 
 
 
 
 
 
 
 
 
 
ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.
Electric Operations

Financial and operational data for the Electric Operations segment for the years ended December 31, 2023, 2022 and 2021, are 
presented below:

Year Ended December 31, (in millions)
Operating Revenues

Operating Expenses

Cost of energy

Operation and maintenance

Depreciation and amortization

Loss (gain) on sale of fixed assets and impairments, net

Other taxes

Total Operating Expenses

Operating Income

Revenues

Residential

Commercial

Industrial

Wholesale

Other

Total

Sales (Gigawatt Hours)

Residential

Commercial

Industrial

Wholesale

Other

Total

Cooling Degree Days

Normal Cooling Degree Days

% (Colder) Warmer than Normal

% (Colder) Warmer than prior year

Electric Customers

Residential

Commercial

Industrial

Wholesale

Other

Total

2023

2022

2021

2023 vs. 2022

2022 vs. 2021

$  1,785.0 

$  1,831.7 

$  1,697.1 

$ 

(46.7)  $ 

134.6 

Favorable (Unfavorable)

446.4 

518.0 

400.9 

2.2 

38.8 

575.8 

486.2 

362.9 

— 

44.4 

429.7 

493.6 

329.4 

(0.9) 

57.5 

  1,406.3 

1,469.3 

1,309.3 

$ 

378.7 

$ 

362.4 

$ 

387.8 

$ 

583.9 

$ 

592.4 

$ 

568.0 

578.1 

475.0 

32.0 

116.0 

571.0 

561.4 

13.5 

93.4 

534.9 

494.1 

15.7 

84.4 

$ 

$ 

129.4 

(31.8) 

(38.0) 

(2.2) 

5.6 

63.0 

16.3  $ 

(8.5)  $ 

7.1 

(86.4) 

18.5 

22.6 

(146.1) 

7.4 

(33.5) 

(0.9) 

13.1 

(160.0) 

(25.4) 

24.4 

36.1 

67.3 

(2.2) 

9.0 

$  1,785.0 

$  1,831.7 

$  1,697.1 

$ 

(46.7)  $ 

134.6 

  3,262.9 

  3,614.2 

  7,820.3 

556.4 

78.9 

3,482.9 

3,682.4 

7,915.3 

50.0 

89.5 

3,546.8 

3,698.0 

8,253.7 

124.7 

108.5 

  15,332.7 

  15,220.1 

  15,731.7 

710 

831 

 (15) %

 (25) %

942 

831 

 13 %

 (8) %

1,020 

803 

 27 %

 13 %

  427,217 

  424,735 

  422,436 

58,779 

2,126 

708 

3 

58,374 

2,130 

710 

3 

58,010 

2,137 

714 

2 

(220.0) 

(68.2) 

(95.0) 

506.4 

(10.6) 

112.6 

(232) 

— 

2,482 

405 

(4) 

(2) 

— 

(63.9) 

(15.6) 

(338.4) 

(74.7) 

(19.0) 

(511.6) 

(78) 

28 

2,299 

364 

(7) 

(4) 

1 

  488,833 

  485,952 

  483,299 

2,881 

2,653 

43

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.
Electric Operations (continued)

Comparability of operation and maintenance expenses and depreciation and amortization may be impacted by regulatory and 
depreciation trackers that allow for the recovery in rates of certain costs.

The underlying reasons for changes in our operating revenues and expenses from 2023 to 2022 are presented in the respective 
tables  below.  Please  refer  to  Part  II,  Item  7,  "Management's  Discussion  and  Analysis  of  Financial  Condition  and  Results  of 
Operations - Results and Discussion of Operations - Electric Operations," of the Company's 2022 Annual Report on Form 10-K 
for discussion of underlying reasons for changes in our operating revenues and expenses for 2022 versus 2021.

Changes in Operating Revenues (in millions)

New rates from base rate proceedings, regulatory capital, and DSM programs
Renewable Joint Venture revenue, fully offset by Joint Venture operating expense and noncontrolling 
interest net income (loss)

2022 FAC refund to customers

FAC over earnings reserve

The effects of weather in 2023 compared to 2022

Decreased customer usage

Other

Change in operating revenues (before cost of energy and other tracked items)

Operating revenues offset in operating expense

Lower cost of energy billed to customers

Reduction in gross receipts tax, offset in operating expenses

Higher tracker deferrals within operation and maintenance, depreciation and tax

Total change in operating revenues

Favorable 
(Unfavorable)

2023 vs 2022

$ 

103.5 

10.2 

8.0 

5.8 

(25.6) 

(12.8) 

0.6 

89.7 

(129.4) 

(12.0) 

5.0 

(46.7) 

$ 

$ 

Weather
In general, we calculate the weather-related revenue variance based on changing customer demand driven by weather variance 
from normal cooling degree days. Our composite cooling degree days reported do not directly correlate to the weather-related 
dollar  impact  on  the  results  of  Electric  Operations.  Cooling  degree  days  experienced  during  different  times  of  the  year  may 
have more or less impact on volume and dollars depending on when they occur. When the detailed results are combined for 
reporting, there may be weather-related dollar impacts on operations when there is not an apparent or significant change in our 
aggregated composite cooling degree day comparison.

Sales
NIPSCO's Electric Segment results remains closely linked to the performance of the steel industry. MWh sales to steel-related 
industries accounted for approximately 49.3% and 47.4% of the total industrial MWh sales for the years ended December 31, 
2023 and 2022, respectively.

Commodity Price Impact
Cost  of  energy  for  the  Electric  Operations  segment  is  principally  comprised  of  the  cost  of  coal,  natural  gas  purchased  for 
internal  generation  of  electricity  at  NIPSCO,  and  the  cost  of  power  purchased  from  generators  of  electricity.  NIPSCO  has  a 
state-approved recovery mechanism that provides a means for full recovery of prudently incurred costs of energy. The majority 
of these costs of energy are passed through directly to the customer, and the costs of energy included in operating revenues are 
matched with the cost of energy expense recorded in the period. The difference is recorded on the Consolidated Balance Sheets 
as under-recovered or over-recovered fuel cost to be included in future customer billings. Therefore, increases in these tracked 
operating expenses are offset by increases in operating revenues and have essentially no impact on net income. 

44

 
 
 
 
 
 
 
 
 
ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.
Electric Operations (continued)

Changes in Operating Expenses (in millions)

Renewable Joint Venture operating expense, partially offset by Joint Venture operating revenues

$ 

Higher depreciation and amortization expense driven by new base rates 

Higher outside services expenses

Lower materials and supplies

Other

Change in operating expenses (before cost of energy and other tracked items)

Operating expenses offset in operating revenue

Lower cost of energy billed to customers

Reduction in gross receipts tax, offset in operating revenues

Higher tracker deferrals within operation and maintenance, depreciation and tax

Total change in operating expense

$ 

$ 

Favorable 
(Unfavorable)

2023 vs 2022

(44.7) 

(25.0) 

(6.9) 

9.4 

(6.2) 

(73.4) 

129.4 

12.0 

(5.0) 

63.0 

Electric Supply and Generation Transition
NIPSCO continues to execute on an electric generation transition consistent with the 2018 Plan and 2021 Plan, which outline 
the path to retire the remaining two coal units at R.M. Schahfer by the end of 2025 and the remaining coal-fired generation at 
Michigan City by the end of 2028, to be replaced by lower-cost, reliable and cleaner options. See "Project Status" discussion, 
below, and "Liquidity and Capital Resources" in this Management's Discussion for information on anticipated in-service dates 
related to our electric generation transition and additional information on our capital investment spend.

NIPSCO continues to work with the EPA to obtain an administrative approval associated with the operation of R.M. Schahfer’s 
remaining two coal units until 2025. In the event that the approval is not obtained, future operations could be impacted. We 
cannot estimate the financial impact on us if this approval is not obtained. Refer to Item 1A. Risk Factors, "Operational Risks," 
of this Annual Report on Form 10-K for further detail.

The  current  replacement  plan  is  aligned  with  the  Preferred  Energy  Resource  Plan  outlined  in  the  2021  Plan  and  primarily 
includes renewable sources of energy, including wind, solar, battery storage, and flexible natural gas resources to be obtained 
through a combination of NIPSCO ownership and PPAs. NIPSCO has sold, and may in the future sell, renewable energy credits 
from its renewable generation to third parties to offset customer costs. NIPSCO has executed several PPAs to purchase 100% of 
the  output  from  renewable  generation  facilities  at  a  fixed  price  per  MWh.  Each  facility  supplying  the  energy  will  have  an 
associated  nameplate  capacity,  and  payments  under  the  PPAs  will  not  begin  until  the  associated  generation  facility  is 
constructed by the owner/seller. NIPSCO has also executed several BTAs with developers to construct renewable generation 
facilities. 

Since 2020, two wind PPA projects, two wind BTA projects and two solar BTA projects have been placed into service, totaling 
1,465  MW  of  nameplate  capacity.  NIPSCO  has  executed  commercial  agreements  for  each  of  the  eight  remaining  identified 
projects. Dunns Bridge II, Cavalry, Fairbanks, Gibson, GreenRiver, Appleseed, Carpenter and Templeton have received IURC 
approval. Additional approvals by the IURC may be required to obtain recovery for increases in projects costs. NIPSCO has 
filed  for  a  new  gas  peaking  facility  to  be  located  at  R.M.  Schahfer  Generating  Station.  On  November  22,  2023  the  IURC 
approved  NIPSCO's  request  to  convert  the  Gibson  project  from  a  PPA  to  a  BTA.  On  January  17,  2024  the  IURC  approved 
increases  to  the  project  costs  as  well  as  the  full  ownership  of  Cavalry  and  Dunns  Bridge  II,  allowing  NIPSCO  to  leverage 
provisions  of  the  IRA  to  monetize  tax  credits  for  the  benefit  of  customers  in  lieu  of  utilizing  tax  equity  partnerships.  See 
"Executive Summary - Your Energy, Your Future" in this Management's Discussion for additional information.

45

 
 
 
 
 
 
 
ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.
Electric Operations (continued)

Remaining Renewables Projects

Cavalry

Dunns Bridge II
Fairbanks(1)
Gibson(1)
Green River

Templeton

Carpenter

Transaction 
Type

BTA

BTA

BTA

BTA

20 year PPA

Technology

Solar & Storage

Solar & Storage

Solar

Solar 

Solar

20 year PPA Wind

20 year PPA Wind

Nameplate 
Capacity 
(MW)

Storage 
Capacity 
(MW)

200

435

250

200

200

200

200

60

75

—

—

—

—

—

Appleseed
(1) Under the structure approved by the IURC ownership of Fairbanks and Gibson will be transferred to JVs whose members are expected to include NIPSCO 
and  an  unrelated  tax  equity  partner.  NIPSCO  is  evaluating  leveraging  provisions  of  the  IRA  to  monetize  tax  credits  for  the  benefit  of  customers  in  lieu  of 
utilizing tax equity partnerships. NIPSCO may seek IURC approval for full ownership of the Fairbanks and Gibson projects.

20 year PPA

Solar

200

—

Project Status. We expect the majority of our remaining BTA and PPA projects to be placed in service in 2024 and 2025. Our 
contract amendments for these projects formally address inflationary cost pressures communicated from the developers of our 
solar and storage projects that are primarily due to (i) limited supply of solar panels and other uncertainties related to the U.S. 
Department  of  Commerce  investigation  on  Antidumping  and  Countervailing  Duties  petition  filed  by  a  domestic  solar 
manufacturer (the "DOC Investigation"), (ii) the U.S. Department of Homeland Security's June 2021 Withhold Release Order 
on  silica-based  products  made  by  Hoshine  Silicon  Industry  Co.,  Ltd./Uyghur  Forced  Labor  Prevention  Act,  (iii)  Section  201 
Tariffs  and  (iv)  persistent  general  global  supply  chain  and  labor  availability  issues.  We  are  actively  monitoring  progress 
towards project milestones for each of our remaining projects. 

In June 2022, the Biden Administration announced a 24-month tariff relief on solar panels subject to the DOC Investigation and 
authorized  the  use  of  the  Defense  Production  Act,  to  accelerate  domestic  production  of  clean  energy  technologies,  including 
solar panel parts. On August 18, 2023, the department of Commerce issued final determinations in the DOC Investigation and 
affirmed that tariff relief announced by the Biden Administration in June 2022 would remain in effect until June 2024. At this 
time, we do not anticipate any significant panel tariffs will impact our solar projects. 

46

ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.

Liquidity and Capital Resources

We  continually  evaluate  the  availability  of  adequate  financing  to  fund  our  ongoing  business  operations,  working  capital  and 
core  safety  and  infrastructure  investment  programs.  Our  financing  is  sourced  through  cash  flow  from  operations  and  the 
issuance of debt and/or equity. External debt financing is provided primarily through the issuance of long-term debt, accounts 
receivable securitization programs and our $1.85 billion commercial paper program, which is backstopped by our committed 
revolving credit facility with a total availability from third-party lenders of $1.85 billion. We entered into a $1.0 billion term 
agreement in the fourth quarter of 2022 and a $650.0 million term credit agreement in the fourth quarter of 2023. On January 3, 
2024, we terminated and repaid in full our $1.0 billion term credit agreement and our $650.0 million term credit agreement. On 
March  24,  2023,  we  completed  the  issuance  and  sale  of  $750.0  million  of  5.25%  senior  unsecured  notes  maturing  in  2028, 
which  resulted  in  approximately  $742.2  million  of  net  proceeds  after  discount  and  debt  issuance  costs.  On  June  8,  2023,  we 
completed the issuance and sale of a reopening of $300.0 million of 5.25% senior unsecured notes maturing in 2028 and $450.0 
million of 5.40% senior unsecured notes maturing in 2033, which resulted in approximately $742.5 million of net proceeds after 
discount  and  debt  issuance  costs.  On  June  15,  2023,  we  redeemed  all  400,000  shares  of  Series  A  Preferred  Stock  for  a 
redemption  price  of  $1,000  per  share,  or  $400.0  million  in  total.  As  of  December  31,  2023,  the  ATM  program  and  the 
associated  equity  distribution  agreements  expired.  On  December  31,  2023,  we  consummated  the  NIPSCO  Minority  Interest 
Transaction  in  exchange  for  a  capital  contribution  of  $2.16  billion  in  cash.  See  Note  4,  "Noncontrolling  Interest,",  Note  6, 
"Equity,"  Note  7,  "Short-Term  Borrowings,"  and  Note  8,  "Long-Term  Debt,"  in  the  Notes  to  the  Consolidated  Financial 
Statements for more information. 

We believe these sources provide adequate capital to fund our operating activities and capital expenditures in 2024 and beyond. 

Operating Activities
Net cash from operating activities for the year ended December 31, 2023 was $1,935.1 million, an increase of $525.7 million 
from 2022. This increase in cash from operating activities was primarily driven by year over year change in accounts receivable 
collections driven by the implementation of new rates and the impact of lower gas prices as compared to 2022, partially offset 
by lower accounts payables also driven by lower gas prices.

Investing Activities
Net  cash  used  for  investing  activities  for  the  year  ended  December  31,  2023  was  $3,571.6  million,  an  increase  of  $1,001.4 
million  from  2022.  Our  current  year  investing  activities  were  comprised  of  increased  capital  expenditures  related  to  system 
growth and reliability as well as payments to renewable generation asset developers related to milestone payments for certain of 
our BTA projects in 2023, as well as the property insurance settlement related to the Greater Lawrence Incident received in the 
prior year.

47

ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.

Capital Expenditures. The table below reflects actual capital expenditures and certain other investing activities by segment for 
2023. 

(in millions)
Gas Distribution Operations

System Growth and Tracker

Maintenance

Total Gas Distribution Operations(1)
Electric Operations

System Growth and Tracker

Maintenance
Generation Transition Investments

$ 

Actual

2023

1,386.8 
328.4 

1,715.2 

440.9 

284.6 

13.7 

Total Electric Operations(1)
Corporate and Other Operations - Maintenance(1)
236.3 
Total Capital Expenditures(2)
2,690.7 
(1)Amounts differ from those presented in Note 21, "Business Segment Information," in the Notes to Consolidated Financial Statements due to the allocation of 
Corporate and Other Maintenance Costs to the Gas Distribution and Electric Operations segments.
(2)Amounts differ from those presented on the Statements of Consolidated Cash Flows primarily due to the capitalized portion of the Corporate Incentive Plan 
payout, inclusion of capital expenditures included in current liabilities and AFUDC Equity. 

739.2 

$ 

In  addition  to  these  capital  expenditures,  we  made  $871.2  million  of  capital  investments  in  the  form  of  milestone  and  final 
payments to the renewable generation asset developers. Through December 2023, NiSource has added approximately $1 billion 
in renewable generation projects to its rate base.

We  expect  to  make  capital  investments  totaling  approximately  $16.0  billion  during  the  2024-2028  period  related  to 
infrastructure modernization, generation transition and customer growth over the next five years. This forecast incorporates an 
estimated $1.7 billion of additional investment in renewable generation projects.

(in billions)

2023 Actual

Capital Investments

$3.6

2024 
Estimated
$3.3 - 3.5

2025 
Estimated
$3.2 - 3.5

2026 
Estimated
$2.9 - 3.2

2027 
Estimated
$2.9 - 3.2

2028 
Estimated
$2.9 - 3.2

Regulatory  Capital  Programs.  We  replace  pipe  and  modernize  our  gas  infrastructure  to  enhance  safety  and  reliability  and 
reduce  leaks.  An  ancillary  benefit  of  these  programs  is  the  reduction  of  GHG  emissions.  In  2023,  we  continued  to  move 
forward on core infrastructure and environmental investment programs supported by complementary regulatory and customer 
initiatives across all six states of our operating area. 

48

 
 
 
 
 
 
 
ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.

The  following  table  describes  the  most  recent  vintage  of  our  regulatory  programs  to  recover  infrastructure  replacement  and 
other federally mandated compliance investments:

(in millions)

Company

Program

Capital 
Investment

Investment Period

Filing Date

Costs Covered(1)

Approved

Columbia of Ohio

Columbia of Ohio

IRP - 2023

CEP - 2023

NIPSCO - Gas

NIPSCO - Gas

TDSIC - 6

FMCA - 1

Columbia of Virginia

SAVE - 2024

Columbia of Kentucky

SMRP - 2023

$ 

$ 

$ 

$ 

$ 

$ 

522.1  4/21-12/22

2/24/2023

Replacement of hazardous service lines, cast iron, wrought 
iron, uncoated steel, and bare steel pipe.

482.1  4/21-12/22

2/24/2023

Assets not included in the IRP.

237.8  1/23-2/23

4/28/2023

New or replacement projects undertaken for the purpose of 
safety, reliability, system modernization or economic 
development.

22.1  1/23-3/23

5/30/2023

Project costs to comply with federal mandates.

166.5  10/22-12/24

8/15/2023

41.6  1/23-12/23

10/14/2022

Columbia of 
Maryland(2)

STRIDE - 2023

$ 

18.0  1/23-12/23

10/31/2022

NIPSCO - Electric(3)

TDSIC - 3

$ 

144.8  7/22-1/23

3/28//2023

Pending Commission Approval 

Replacement projects that (1) enhance system safety or 
reliability, or (2) reduce, or potentially reduce, greenhouse gas 
emissions. Includes costs associated with Advanced Leak 
Detection and Repair.

Replacement of mains and inclusion of system safety 
investments.

Pipeline upgrades designed to improve public safety or 
infrastructure reliability.

New or replacement projects undertaken for the purpose of 
safety, reliability, system modernization or economic 
development.

NIPSCO - Gas 
NIPSCO - Gas(4)

TDSIC - 7

FMCA - 2

$ 

$ 

444.9  1/23-8/23

10/31/2023

New or replacement projects undertaken for the purpose of 
safety, reliability, system modernization or economic 
development.

49.0  1/23-9/23

11/29/2023

Project costs to comply with federal mandates.

$ 

81.9  1/23-12/24

Columbia of 
Kentucky(5)
SMRP - 2024
(1)Programs do not include any costs already included in base rates.
(2)Columbia of Maryland’s STRIDE expired December 31, 2023. On June 23, 2023, CMD filed an application for approval of a new five-year STRIDE. On 
November 21, 2023, the filing was withdrawn. Effective January 1, 2024, the STRIDE capital investments previously recovered are no longer earning a current 
return. 
(3)Coincident with the implementation of Step-1 base rates in August 2023 in Cause No. 45772, TDSIC-3 cumulative capital investment of $554.7 million 
moved out of this tracker and into base rates.
(4)NIPSCO received approval for a new certificate of public convenience and necessity on December 28, 2022 for an additional Pipeline Safety III Compliance 
Plan, including $235.3M in capital and $34.1M in operation and maintenance expense project investments.
(5)Columbia of Kentucky placed these rates into effect, as of January 3, 2024, subject to refund, depending on a Commission order ruling on the Application.

Replacement of mains and inclusion of system safety 
investments.

10/13/2023

On March 30, 2022, NIPSCO Electric filed a petition with the IURC seeking approval of NIPSCO's federally mandated costs 
for  closure  of  Michigan  City  Generating  Station's  CCR  ash  ponds.  The  project  includes  a  total  estimated  $40.0  million  of 
federally mandated retirement costs. On November 2, 2022, NIPSCO Electric filed a petition with the IURC seeking approval 
of NIPSCO's federally mandated costs for closure of R.M. Schahfer Generation Station's multi-cell unit. The project includes a 
total estimated $53.0 million of federally mandated retirement costs. Due to the NIPSCO Electric settlement agreement filed on 
March 10, 2023, both FMCA cases were stayed pending the outcome of the NIPSCO Electric base rate case, which proposed 
these pond closure costs be recovered through base rates, rather than the FMCA Tracker. NIPSCO received an order approving 
its  electric  base  rate  case  settlement  on  August  2,  2023.  Pursuant  to  that  settlement  agreement,  NIPSCO  filed  and  the  IURC 
approved motions to dismiss the independent FMCA cases related to CCR ash pond recovery, as that recovery will now occur 
through NIPSCO’s electric base rates. Refer to Note 19, "Other Commitments and Contingencies - D. Environmental Matters," 
in the Notes to Consolidated Financial Statements for further discussion of the CCRs.

Refer to Note 12, "Regulatory Matters," in the Notes to Consolidated Financial Statements for a further discussion of regulatory 
developments during 2023.

49

ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.

Financing Activities
Common  Stock,  Preferred  Stock  and  Equity  Unit  Sale.  Refer  to  Note  6,  "Equity,"  in  the  Notes  to  Consolidated  Financial 
Statements for information on common stock, preferred stock and equity units activity.

Short-term Debt. Refer to Note 7, "Short-Term Borrowings," in the Notes to Consolidated Financial Statements for information 
on short-term debt.

Long-term  Debt.  Refer  to  Note  8,  "Long-Term  Debt,"  in  the  Notes  to  Consolidated  Financial  Statements  for  information  on 
long-term debt.

Non-controlling Interest. We received $2.16 billion upon closing the NIPSCO Minority Interest Transaction. Proceeds from 
the closing of the NIPSCO Minority Interest Transaction were used to repay short-term debt, including our credit agreements. 
Under the terms of the LLC Agreement, Blackstone will provide up to $250 million in additional capital contributions over a 
three-year period after the Closing, which obligation is backed by an Equity Commitment Letter from an affiliate of Blackstone. 
Refer  to  Note  4,  "Noncontrolling  Interest,"  and  Note  7,  "Short-Term  Borrowings,"  in  the  Notes  to  Consolidated  Financial 
Statements for more information. 

Sources of Liquidity
The following table displays our liquidity position as of December 31, 2023 and 2022:

Year Ended December 31, (in millions)

Current Liquidity

Revolving Credit Facility
Accounts Receivable Programs(1)

Less:

Commercial Paper
Accounts Receivable Programs Utilized
Letters of Credit Outstanding Under Credit Facility

Add:

Cash and Cash Equivalents

$ 

Net Available Liquidity
(1)Represents the lesser of the seasonal limit or maximum borrowings supportable by the underlying receivables. 

$ 

2023

2022

1,850.0  $ 
383.9   

1,061.0   
337.6   
9.9   

2,245.4   
3,070.8  $ 

1,850.0 
447.2 

415.0 
347.2 
10.2 

40.8 
1,565.6 

Debt Covenants. We are subject to a financial covenant under our revolving credit facility which requires us to maintain a debt 
to capitalization ratio that does not exceed 70%. As of December 31, 2023, the ratio was 58.2%.

Credit  Ratings.  The  credit  rating  agencies  periodically  review  our  ratings,  taking  into  account  factors  such  as  our  capital 
structure  and  earnings  profile.  The  following  table  includes  our  and  NIPSCO's  credit  ratings  and  ratings  outlook  as  of 
December 31, 2023. There have been no changes to our credit ratings or outlooks since February 2020.

A credit rating is not a recommendation to buy, sell or hold securities, and may be subject to revision or withdrawal at any time 
by the assigning rating organization.

NiSource
NIPSCO

Commercial Paper

S&P

Moody's

Fitch

Rating

BBB+
BBB+

A-2

Outlook
Stable

Stable
Stable

Rating

Outlook

Rating

Outlook

Baa2
Baa1

P-2

Stable
Stable

Stable

BBB
BBB

F2

Stable
Stable

Stable

Certain of our subsidiaries have agreements that contain “ratings triggers” that require increased collateral if our credit ratings 
or  the  credit  ratings  of  certain  of  our  subsidiaries  are  below  investment  grade.  These  agreements  are  primarily  for  insurance 
purposes and for the physical purchase or sale of power. As of December 31, 2023, a collateral requirement of approximately 
$90.1 million would be required in the event of a downgrade below investment grade. In addition to agreements with ratings 
triggers,  there  are  other  agreements  that  contain  “adequate  assurance”  or  “material  adverse  change”  provisions  that  could 
necessitate additional credit support such as letters of credit and cash collateral to transact business. 

50

 
 
 
 
 
ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.

Equity. Our authorized capital stock consists of 770,000,000 shares, $0.01 par value, of which 750,000,000 are common stock 
and  20,000,000  are  preferred  stock.  As  of  December  31,  2023,  447,381,671  shares  of  common  stock  and  40,000  shares  of 
preferred stock were outstanding. For more information regarding our common and preferred stock, see Note 6, "Equity," in the 
Notes to Consolidated Financial Statements.

Contractual Obligations, Cash Requirements and Off-Balance Sheet Arrangements
We have certain contractual obligations requiring payments at specified periods. Our material cash requirements are detailed 
below. We intend to use funds from the liquidity sources referenced above to meet these cash requirements.

At December 31, 2023, we had $11,079.3 million in long-term debt and $3,048.6 million in short-term borrowings outstanding. 

During 2024 and 2025, we expect to make cash payments of $652.0 million and $485.7 million, respectively, related to pipeline 
service obligations including demand for gas transportation, gas storage and gas purchases.

Our expected payments include employer contributions to pension and other postretirement benefits plans expected to be made 
in 2024. Plan contributions beyond 2024 are dependent upon a number of factors, including actual returns on plan assets, which 
cannot be reliably estimated at this time. In 2024, we expect to make contributions of approximately $2.2 million to our pension 
plans  and  approximately  $23.1  million  to  our  postretirement  medical  and  life  plans.  Refer  to  Note  16,  "Pension  and  Other 
Postemployment Benefits," in the Notes to Consolidated Financial Statements for more information.

We cannot reasonably estimate the settlement amounts or timing of cash flows related to certain of our long-term obligations 
classified as "Total Other Liabilities" on the Consolidated Balance Sheets.

We have uncertain income tax positions for which we are unable to predict when the matters will be resolved. Refer to Note 15, 
"Income Taxes," in the Notes to Consolidated Financial Statements for more information.

NIPSCO has executed several PPAs to purchase 100% of the output from renewable generation facilities at a fixed price per 
MWh.  NIPSCO  has  also  executed  several  BTAs  with  developers  to  construct  renewable  generation  facilities.  See  Note  19, 
"Other Commitments and Contingencies - A. Contractual Obligations," and Note 19, "Other Commitments and Contingencies," 
- E. "Other Matters - Generation Transition," in the Notes to Consolidated Financial Statements for additional information.

In  addition,  we,  along  with  certain  of  our  subsidiaries,  enter  into  various  agreements  providing  financial  or  performance 
assurance to third parties on behalf of certain subsidiaries. Such agreements include guarantees and stand-by letters of credit. 

Refer to Note 19, "Other Commitments and Contingencies," in the Notes to Consolidated Financial Statements for additional 
information regarding our contractual obligations over the next 5 years and thereafter and our off-balance sheet arrangements.

Market Risk Disclosures

Risk is an inherent part of our businesses. The extent to which we properly and effectively identify, assess, monitor and manage 
each of the various types of risk involved in our businesses is critical to our profitability. We seek to identify, assess, monitor 
and manage, in accordance with defined policies and procedures, the following principal market risks that are involved in our 
businesses:  commodity  price  risk,  interest  rate  risk  and  credit  risk.  We  manage  risk  through  a  multi-faceted  process  with 
oversight by the Risk Management Committee that requires constant communication, judgment and knowledge of specialized 
products and markets. Our senior management takes an active role in the risk management process and has developed policies 
and procedures that require specific administrative and business functions to assist in the identification, assessment and control 
of various risks. These may include, but are not limited to market, operational, financial, compliance and strategic risk types. In 
recognition of the increasingly varied and complex nature of the energy business, our risk management process, policies and 
procedures continue to evolve and are subject to ongoing review and modification.

Commodity Price Risk
Our  Gas  and  Electric  Operations  have  commodity  price  risk  primarily  related  to  the  purchases  of  natural  gas  and  power.  To 
manage this market risk, our subsidiaries use derivatives, including commodity futures contracts, swaps, forwards and options. 
We do not participate in speculative energy trading activity.

Commodity  price  risk  resulting  from  derivative  activities  at  our  rate-regulated  subsidiaries  is  limited  and  does  not  bear 
significant exposure to earnings risk, since our current regulatory mechanisms allow recovery of prudently incurred purchased 
power,  fuel  and  gas  costs  through  the  rate-making  process,  including  gains  or  losses  on  these  derivative  instruments.  These 
changes are included in the GCA and FAC regulatory rate-recovery mechanisms. If these mechanisms were to be adjusted or 

51

ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.

eliminated, these subsidiaries may begin providing services without the benefit of the traditional rate-making process and may 
be  more  exposed  to  commodity  price  risk.  For  additional  information,  see  "Results  and  Discussion  of  Operations"  in  this 
Management's Discussion.

Certain of our subsidiaries are required to make cash margin deposits with their brokers to cover actual and potential losses in 
the value of outstanding exchange traded derivative contracts. The amount of these deposits, some of which are reflected in our 
restricted cash balance, may fluctuate significantly during periods of high volatility in the energy commodity markets.

Refer to Note 13, "Risk Management Activities," in the Notes to Consolidated Financial Statements for further information on 
our commodity price risk assets and liabilities as of December 31, 2023 and 2022.

Interest Rate Risk
We are exposed to interest rate risk as a result of changes in interest rates on borrowings under our revolving credit agreement, 
commercial  paper  program,  term  credit  agreements  and  accounts  receivable  programs,  which  have  interest  rates  that  are 
indexed  to  short-term  market  interest  rates.  Based  upon  average  borrowings  and  debt  obligations  subject  to  fluctuations  in 
short-term  market  interest  rates,  an  increase  (or  decrease)  in  short-term  interest  rates  of  100  basis  points  (1%)  would  have 
increased  (or  decreased)  interest  expense  by  $18.9  million  and  $8.7  million  for  2023  and  2022,  respectively.  We  are  also 
exposed  to  interest  rate  risk  as  a  result  of  changes  in  benchmark  rates  that  can  influence  the  interest  rates  of  future  debt 
issuances.  From  time  to  time,  we  may  enter  into  forward  interest  rate  instruments  to  lock  in  long  term  interest  costs  and/  or 
rates. 

Credit Risk
Due to the nature of the industry, credit risk is embedded in many of our business activities. Our extension of credit is governed 
by  a  Corporate  Credit  Risk  Policy.  In  addition,  Risk  Management  Committee  guidelines  are  in  place  which  document 
management  approval  levels  for  credit  limits,  evaluation  of  creditworthiness,  and  credit  risk  mitigation  efforts.  Exposures  to 
credit risks are monitored by the risk management function, which is independent of commercial operations. Credit risk arises 
due  to  the  possibility  that  a  customer,  supplier  or  counterparty  will  not  be  able  or  willing  to  fulfill  its  obligations  on  a 
transaction on or before the settlement date. For derivative-related contracts, credit risk arises when counterparties are obligated 
to deliver or purchase defined commodity units of gas or power to us at a future date per execution of contractual terms and 
conditions. Exposure to credit risk is measured in terms of both current obligations and the market value of forward positions 
net of any posted collateral such as cash and letters of credit.

We evaluate the financial status of our banking partners through the use of market-based metrics such as credit default swap 
pricing levels, and also through traditional credit ratings provided by major credit rating agencies.

Other Information

Critical Accounting Estimates
We apply certain accounting policies in accordance with GAAP, which require that we make estimates and judgments that have 
had, and may continue to have, significant impacts on our operations and Consolidated Financial Statements. We evaluate our 
estimates on an ongoing basis. We base our estimates on historical experience and on various other assumptions that we believe 
are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of 
assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates. We believe 
the  following  represent  the  more  significant  items  requiring  the  use  of  judgment  in  preparing  our  Consolidated  Financial 
Statements:

Basis  of  Accounting  for  Rate-Regulated  Subsidiaries.  ASC  Topic  980,  Regulated  Operations,  provides  that  rate-regulated 
subsidiaries  account  for  and  report  assets  and  liabilities  consistent  with  the  economic  effect  of  the  way  in  which  regulators 
establish rates, if the rates established are designed to recover the costs of providing the regulated service and if the competitive 
environment makes it probable that such rates can be billed and collected. Accordingly, certain expenses and credits subject to 
utility regulation or rate determination normally reflected in income may be deferred on the Consolidated Balance Sheets and 
recognized in income as the related amounts are included in service rates and recovered from or refunded to customers. The 
total  amounts  of  regulatory  assets  and  liabilities  reflected  on  the  Consolidated  Balance  Sheets  were  $2,460.2  million  and 
$1,789.3  million  at  December  31,  2023,  and  $2,580.8  million  and  $2,012.6  million  at  December  31,  2022,  respectively.  For 
additional information, refer to Note 12, "Regulatory Matters," in the Notes to Consolidated Financial Statements.

In the event that regulation significantly changes the opportunity for us to recover our costs in the future, all or a portion of our 
regulated  operations  may  no  longer  meet  the  criteria  for  the  application  of  ASC  Topic  980,  Regulated  Operations.  In  such 

52

ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.

event, a write-down of all or a portion of our existing regulatory assets and liabilities could result. If transition cost recovery is 
approved  by  the  appropriate  regulatory  bodies  that  would  meet  the  requirements  under  GAAP  for  continued  accounting  as 
regulatory  assets  and  liabilities  during  such  recovery  period,  the  regulatory  assets  and  liabilities  would  be  reported  at  the 
recoverable  amounts.  If  we  were  unable  to  continue  to  apply  the  provisions  of  ASC  Topic  980,  Regulated  Operations,  we 
would  be  required  to  apply  the  provisions  of  ASC  Topic  980-20,  Discontinuation  of  Rate-Regulated  Accounting.  In 
management’s opinion, our regulated subsidiaries will be subject to ASC Topic 980, Regulated Operations for the foreseeable 
future.

Certain of the regulatory assets reflected on our Consolidated Balance Sheets require specific regulatory action in order to be 
included  in  future  service  rates.  Although  recovery  of  these  amounts  is  not  guaranteed,  we  believe  that  these  costs  meet  the 
requirements  for  deferral  as  regulatory  assets.  If  we  determine  that  the  amounts  included  as  regulatory  assets  are  no  longer 
probable of recovery, a charge to income would immediately be required to the extent of the unrecoverable amounts.

One of the more significant items recorded through the application of this accounting guidance is the regulatory overlay for JV 
accounting. The application of HLBV to consolidated VIEs generally results in the recognition of profit from the related JVs 
over a time frame that is different from when the regulatory return is earned. In accordance with the principles of ASC 980, we 
have recognized a regulatory deferral of certain amounts representing the timing difference between the profit earned from the 
JVs  and  the  amount  included  in  regulated  rates  to  recover  our  approved  investments  in  consolidated  JVs.  For  additional 
information,  refer  to  Note  1,  "Nature  of  Operations  and  Summary  of  Significant  Accounting  Policies  -  S.  Noncontrolling 
Interest," in the Notes to Consolidated Financial Statements.

Pension and Postretirement Benefits. We have defined benefit plans for both pension and other postretirement benefits. The 
calculation of the net obligations and annual expense related to the plans requires a significant degree of judgment regarding the 
discount rates to be used in bringing the liabilities to present value, expected long-term rates of return on plan assets, health care 
trend rates, and mortality rates, among other assumptions. Due to the size of the plans and the long-term nature of the associated 
liabilities, changes in the assumptions used in the actuarial estimates could have material impacts on the measurement of the net 
obligations and annual expense recognition. Differences between actuarial assumptions and actual plan results are deferred into 
AOCI or a regulatory balance sheet account, depending on the jurisdiction of our entity. These deferred gains or losses are then 
amortized  into  the  income  statement  when  the  accumulated  differences  exceed  10%  of  the  greater  of  the  projected  benefit 
obligation  or  the  fair  value  of  plan  assets  (known  in  GAAP  as  the  “corridor”  method)  or  when  settlement  accounting  is 
triggered.

The discount rates, expected long-term rates of return on plan assets, health care cost trend rates and mortality rates are critical 
assumptions. Methods used to develop these assumptions are described below. While a third party actuarial firm assists with the 
development of many of these assumptions, we are ultimately responsible for selecting the final assumptions.

The  discount  rate  is  utilized  principally  in  calculating  the  actuarial  present  value  of  pension  and  other  postretirement  benefit 
obligations and net periodic pension and other postretirement benefit plan costs. Our discount rates for both pension and other 
postretirement benefits are determined using spot rates along an AA-rated above median yield curve with cash flows matching 
the expected duration of benefit payments to be made to plan participants.

The  expected  long-term  rate  of  return  on  plan  assets  is  a  component  utilized  in  calculating  annual  pension  and  other 
postretirement benefit plan costs. We estimate the expected return on plan assets by evaluating expected bond returns, equity 
risk premiums, target asset allocations, the effects of active plan management, the impact of periodic plan asset rebalancing and 
historical  performance.  We  also  consider  the  guidance  from  our  investment  advisors  in  making  a  final  determination  of  our 
expected  rate  of  return  on  assets.  For  measurement  of  2023  net  periodic  benefit  cost,  we  selected  a  weighted-average 
assumption  of  the  expected  pre-tax  long-term  rate  of  return  of  7.00%  and  6.96%  for  our  pension  and  other  postretirement 
benefit plan assets, respectively. For measurement of 2024 net periodic benefit cost, we selected a weighted-average assumption 
of  the  expected  pre-tax  long-term  rate  of  return  of  7.02%  and  7.06  %  respectively,  for  our  pension  and  other  postretirement 
benefit plan assets.

We estimate the assumed health care cost trend rate, which is used in determining our other postretirement benefit net expense, 
based upon our actual health care cost experience, the effects of recently enacted legislation, third-party actuarial surveys and 
general economic conditions. 

53

ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.

We utilize a full yield curve approach to estimate the service and interest components of net periodic benefit cost for pension 
and  other  postretirement  benefits  by  applying  the  specific  spot  rates  along  the  yield  curve  used  in  the  determination  of  the 
benefit obligation to the relevant projected cash flows. For further discussion of our pension and other postretirement benefits, 
see Note 16, "Pension and Other Postemployment Benefits," in the Notes to Consolidated Financial Statements. 

Typically, we use the Society of Actuaries’ most recently published mortality data in developing a best estimate of mortality as 
part of the calculation of the pension and other postretirement benefit obligations. We adopted Aon's U.S. Endemic Mortality 
Improvement scale MP-2021, accounting for both the near-term and long-term COVID-19 impacts.

The  following  tables  illustrate  the  effects  of  changes  in  these  actuarial  assumptions  while  holding  all  other  assumptions 
constant:

Change in Assumptions (in millions)

+50 basis points change in discount rate
-50 basis points change in discount rate

Change in Assumptions (in millions)
+50 basis points change in discount rate
-50 basis points change in discount rate
+50 basis points change in expected long-term rate of return 
on plan assets
-50 basis points change in expected long-term rate of return on 
plan assets

(1)Before labor capitalization and regulatory deferrals. 

Impact on December 31, 2023 Projected Benefit Obligation 
Increase/(Decrease)

Pension Benefits

Other Postretirement Benefits

$ 

$ 

(51.8)  $ 
55.9 

(20.5) 
22.3 

Impact on 2023 Expense Increase/(Decrease)(1)
Pension Benefits

Other Postretirement Benefits
0.3 
(0.3) 

(1.6)  $ 
1.4 

(6.8)   

6.8 

(1.1) 

1.1 

Goodwill and Other Intangible Assets. We have six goodwill reporting units, comprised of the six state operating companies 
within  the  Gas  Distribution  Operations  reportable  segment.  Our  goodwill  assets  at  December  31,  2023  were  $1,486  million, 
most of which resulted from the acquisition of Columbia on November 1, 2000.

As  required  by  GAAP,  we  test  for  impairment  of  goodwill  on  an  annual  basis  and  on  an  interim  basis  when  events  or 
circumstances indicate that a potential impairment may exist. Our annual goodwill test takes place in the second quarter of each 
year and was performed on May 1, 2023. A qualitative ("Step 0") test was completed on May 1, 2023, for all reporting units. In 
the  Step  0  analysis,  we  assessed  various  assumptions,  events  and  circumstances  that  would  have  affected  the  estimated  fair 
value of the applicable reporting units as compared to the baseline "step 1" fair value measurement performed May 1, 2020. 
The  results  of  this  assessment  indicated  that  it  was  more  likely  than  not  that  the  estimated  fair  value  of  the  reporting  units 
substantially  exceeded  the  related  carrying  values  of  our  reporting  units;  therefore,  no  "step  1"  analysis  was  required  and  no 
impairment  charges  were  indicated.  Since  the  annual  evaluation,  there  have  been  no  indications  that  the  fair  values  of  the 
goodwill reporting units have decreased below the carrying values.

As noted above, application of the qualitative goodwill impairment test requires evaluating various events and circumstances to 
determine whether it is not more likely than not that the fair value of a reporting unit is less than its carrying amount. Although 
we believe all relevant factors were considered in the qualitative impairment analysis to reach the conclusion that goodwill is 
not impaired, significant changes in any one of the assumptions could potentially result in the recording of an impairment that 
could have significant impacts on the Consolidated Financial Statements. 

See Note 10, "Goodwill," in the Notes to Consolidated Financial Statements for further information.

Unbilled  Revenue.  We  record  utility  operating  revenues  when  energy  is  delivered  to  our  customers.  However,  the 
determination of energy sales to individual customers is based upon the reading of their meters, which occurs on a systematic 
basis throughout the month. At the end of each month, amounts of energy delivered to customers since the date of their last 
meter reading are estimated and corresponding unbilled revenues are calculated. This unbilled revenue is estimated each month 
based upon historical usage, customer rates and weather. As of December 31, 2023, we recorded $337.6 million of customer 

54

 
 
 
 
 
 
 
ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF 
OPERATIONS (continued)

NISOURCE INC.

accounts receivable for unbilled revenue. Significant fluctuations in energy demand for the unbilled period or changes in the 
composition  of  customer  classes  could  impact  the  accuracy  of  the  unbilled  revenue  estimate.  Refer  to  Note  3,  "Revenue 
Recognition," in the Notes to Consolidated Financial Statements for additional information regarding our significant judgments 
and estimates related to unbilled revenue recognition.

Income  Taxes.  The  consolidated  income  tax  provision  and  deferred  income  tax  assets  and  liabilities,  as  well  as  any 
unrecognized tax benefits and valuation allowances, require use of estimates and significant management judgement. Although 
we  believe  that  current  estimates  for  deferred  tax  assets  and  liabilities  are  reasonable,  actual  results  could  differ  from  these 
estimates for a variety of reasons, including reasonable projections of taxable income, the ability and intent to implement tax 
planning strategies if necessary, and interpretations of applicable tax laws and regulations across multiple taxing jurisdictions. 
Ultimate resolution or clarification of income tax matters may result in favorable or unfavorable impacts to net income and cash 
flows, and adjustments to tax-related assets and liabilities could be material.

We account for uncertain income tax positions using a benefit recognition model with a two-step approach including a more-
likely-than-not recognition threshold and a measurement approach based on the largest amount of tax benefit that is greater than 
50% likely of being realized upon ultimate settlement. We evaluate each position based solely on the technical merits and facts 
and circumstances of the position, assuming the position will be examined by a taxing authority having full knowledge of all 
relevant information. Significant judgment is required to determine whether the recognition threshold has been met and, if so, 
the appropriate amount of tax benefits to be recorded in the consolidated financial statements. At December 31, 2023 and 2022, 
we had $21.7 million of unrecognized tax benefits. Changes in these unrecognized tax benefits may result from remeasurement 
of amounts expected to be realized, settlements with tax authorities and expiration of statutes of limitations.

On a quarterly basis, we evaluate our deferred tax assets by considering current and historical financial results, expectations for 
future taxable income and the availability of tax planning strategies that can be implemented, if necessary, to realize deferred 
tax  assets.  Failure  to  achieve  forecasted  taxable  income  or  successfully  implement  tax  planning  strategies  may  affect  the 
realization of deferred tax assets. We establish a valuation allowance when we conclude it is more likely than not that all, or a 
portion, of a deferred tax asset will not be realized in future periods. Significant judgment is required to determine the amount 
of  tax  benefits  expected  to  be  realized.  At  December  31,  2023  and  2022,  we  had  established  $6.4  million  and  $7.8  million, 
respectively, of valuation allowances (net of federal benefit) related to certain state net operating loss carryforwards. Refer to 
Note 15, "Income Taxes," in the Notes to Consolidated Financial Statements for additional information.

Recently Issued Accounting Pronouncements

Refer to Note 2, "Recent Accounting Pronouncements," in the Notes to Consolidated Financial Statements.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

Quantitative and Qualitative Disclosures about Market Risk are reported in Item 7, “Management’s Discussion and Analysis of 
Financial Condition and Results of Operations – Market Risk Disclosures.”

55

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

NISOURCE INC.
Index
Report of Independent Registered Public Accounting Firm    .................................................................................................
Statements of Consolidated Income    .....................................................................................................................................
Statements of Consolidated Comprehensive Income    ...........................................................................................................
Consolidated Balance Sheets   ................................................................................................................................................
Statements of Consolidated Cash Flows  ...............................................................................................................................
Statements of Consolidated Stockholders' Equity    ................................................................................................................
Notes to Consolidated Financial Statements      ........................................................................................................................
1. Nature of Operations and Summary of Significant Accounting Policies  .....................................................................
2. Recent Accounting Pronouncements     ...........................................................................................................................
3. Revenue Recognition   ...................................................................................................................................................
4. Noncontrolling Interest       ................................................................................................................................................
5. Earnings Per Share    .......................................................................................................................................................
6. Equity  ...........................................................................................................................................................................
7. Short-Term Borrowings  ...............................................................................................................................................
8. Long-Term Debt   ...........................................................................................................................................................
9. Property, Plant and Equipment .....................................................................................................................................
10. Goodwill   .....................................................................................................................................................................
11. Asset Retirement Obligations  .....................................................................................................................................
12. Regulatory Matters   .....................................................................................................................................................
13. Risk Management Activities   ......................................................................................................................................
14. Fair Value  ...................................................................................................................................................................
15. Income Taxes   .............................................................................................................................................................
16. Pension and Other Postretirement Benefits   ................................................................................................................
17. Share-Based Compensation  ........................................................................................................................................
18. Leases     .........................................................................................................................................................................
19. Other Commitments and Contingencies      ....................................................................................................................
20. Accumulated Other Comprehensive Loss  ..................................................................................................................
21. Business Segment Information ...................................................................................................................................
22. Other, Net     ...................................................................................................................................................................
23. Interest Expense, Net ..................................................................................................................................................
24. Supplemental Cash Flow Information  ........................................................................................................................
Schedule II     ............................................................................................................................................................................

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85
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93
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106
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112
115
115
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56

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

NISOURCE INC.
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the shareholders and the Board of Directors of NiSource Inc. 

Opinion on the Financial Statements

We  have  audited  the  accompanying  consolidated  balance  sheets  of  NiSource  Inc.  and  subsidiaries  (the  "Company")  as  of 
December 31, 2023 and 2022, the related statements of consolidated income, comprehensive income, stockholders' equity, and 
cash flows, for each of the three years in the period ended December 31, 2023, and the related notes and the schedule listed in 
the  Index  at  Item  15  (collectively  referred  to  as  the  "financial  statements").  In  our  opinion,  the  financial  statements  present 
fairly, in all material respects, the financial position of the Company as of December 31, 2023 and 2022, and the results of its 
operations and its cash flows for each of the three years in the period ended December 31, 2023, in conformity with accounting 
principles generally accepted in the United States of America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) 
(PCAOB),  the  Company's  internal  control  over  financial  reporting  as  of  December  31,  2023,  based  on  criteria  established  in 
Internal  Control  —  Integrated  Framework  (2013)  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway 
Commission and our report dated February 21, 2024, expressed an unqualified opinion on the Company's internal control over 
financial reporting.  

Basis for Opinion 

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on 
the Company's financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are 
required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable 
rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the 
audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to 
error  or  fraud.  Our  audits  included  performing  procedures  to  assess  the  risks  of  material  misstatement  of  the  financial 
statements,  whether  due  to  error  or  fraud,  and  performing  procedures  that  respond  to  those  risks.  Such  procedures  included 
examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included 
evaluating  the  accounting  principles  used  and  significant  estimates  made  by  management,  as  well  as  evaluating  the  overall 
presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matters

The critical audit matters communicated below are matters arising from the current-period audit of the financial statements that 
were communicated or required to be communicated to the audit committee and that (1) relate to accounts or disclosures that 
are  material  to  the  financial  statements  and  (2)  involved  our  especially  challenging,  subjective,  or  complex  judgments.  The 
communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and 
we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on 
the accounts or disclosures to which they relate.

Non-Controlling Interest - Minority Interest Investment in NIPSCO Holdings II LLC – Refer to Notes 1, 4, 6, and 15 to 
the financial statements

Critical Audit Matter Description

On December 31, 2023, the Company consummated the closing of the issuance of a 19.9% equity interest in NIPSCO Holdings 
II  LLC,  a  wholly-owned  subsidiary  of  the  Company  and  the  sole  owner  of  Northern  Indiana  Public  Service  Company  LLC 
(“NIPSCO”), to BIP BLUE BUYER L.L.C., an affiliate of Blackstone Infrastructure Partners. At closing, BIP BLUE BUYER 
L.L.C., acquired a 19.9% equity interest in NIPSCO Holdings II LLC in exchange for making a capital contribution of $2.16 
billion in cash to NIPSCO Holdings II LLC. Upon consummation of the minority interest transaction, the Company owns an 
80.1%  controlling  indirect  equity  interest  in  NIPSCO  LLC  while  BIP  BLUE  BUYER  L.L.C.,  owns  the  remaining  19.9% 
indirect equity interest.

We identified the $2.16 billion minority interest investment in NIPSCO Holdings II LLC as a critical audit matter due to the 
significant  degree  of  judgement  involved  in  complex  accounting  and  tax  conclusions.  This  required  a  significant  degree  of 
auditor  judgment  when  performing  audit  procedures,  including  the  need  to  involve  professionals  in  our  firm  with  the 

57

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

NISOURCE INC.
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

appropriate  expertise  to  assist  us  in  evaluating  management’s  conclusions  around  the  accounting  and  tax  treatment  for  the 
transaction.

How the Critical Audit Matter Was Addressed in the Audit

Our audit procedures related to the minority interest investment in NIPSCO Holdings II LLC included the following, among 
others:

• We tested the effectiveness of controls over the accounting assessment for this transaction, including the controls over 

technical accounting conclusions and income tax treatment of this transaction.

▪
▪

• We evaluated management’s conclusions related to accounting for the transaction by:
Obtaining and reading the contractual agreements related to this transaction,
Involving  professionals  in  our  firm  with  the  appropriate  expertise  in  accounting  for  minority  interest 
transactions  to  evaluate  the  work  performed  by  management  related  to  the  accounting  treatment  of  the 
transaction,
Involving  professionals  in  our  firm  with  the  appropriate  expertise  in  income  taxes  to  evaluate  the  work 
performed by management related to the tax treatment of the transaction,

▪

• We evaluated the appropriateness of the Company’s disclosures related to the minority interest investment, including 

balances recorded.

Regulatory  Matters  -  Impact  of  Rate  Regulation  on  the  Financial  Statements  -  Refer  to  Notes  1,  9,  and  12  to  the 
financial statements

Critical Audit Matter Description

The Company’s subsidiaries are fully regulated natural gas and electric utility companies serving customers in six states. These 
rate-regulated  subsidiaries  account  for  and  report  assets  and  liabilities  consistent  with  the  economic  effect  of  the  manner  in 
which regulators establish rates, if the rates established are designed to recover the costs of providing the regulated service and 
it  is  probable  that  such  rates  can  be  charged  to  and  collected  from  customers.  Certain  expenses  and  credits  subject  to  utility 
regulation  or  rate  determination  normally  reflected  in  income  are  deferred  on  the  consolidated  balance  sheets  and  are  later 
recognized in income as the related amounts are included in customer rates and recovered from or refunded to customers.

The  Company’s  subsidiaries’  rates  are  subject  to  regulatory  rate-setting  processes.  Rates  are  determined  and  approved  in 
regulatory proceedings based on an analysis of the subsidiaries’ costs to provide utility service and a return on, and recovery of, 
the subsidiaries’ investment in the utility business. Regulatory decisions can have an impact on the recovery of costs, the rate of 
return  earned  on  investment,  and  the  timing  and  amount  of  assets  to  be  recovered  by  rates.  The  respective  commission’s 
regulation  of  rates  is  premised  on  the  full  recovery  of  prudently  incurred  costs  and  a  reasonable  rate  of  return  on  invested 
capital. Decisions to be made by the commission in the future will impact the accounting for regulated operations, including 
decisions  about  the  amount  of  allowable  costs  and  return  on  invested  capital  included  in  rates  and  any  refunds  that  may  be 
required. While the Company has indicated it expects to recover costs from customers through regulated rates, there is a risk 
that  the  commission  will  not  approve:  (1)  full  recovery  of  the  costs  of  providing  utility  service,  or  (2)  full  recovery  of  all 
amounts invested in the utility business and a reasonable return on that investment.

We  identified  the  impact  of  rate  regulation,  specifically  certain  regulatory  assets  and  liabilities  at  the  Company’s  Northern 
Indiana  Public  Service  Company  LLC  and  Columbia  Gas  of  Ohio,  Inc.  subsidiaries,  as  a  critical  audit  matter  due  to  the 
significant judgments made by management to support its assertions about certain account balances and the significant degree 
of  subjectivity  involved  in  assessing  the  likelihood  of  recovery  of  incurred  costs  in  current  or  future  rates  due  in  part  to 
uncertainty  related  to  future  decisions  by  the  rate  regulators.  This  required  specialized  knowledge  of  accounting  for  rate 
regulation  and  the  rate  setting  process  due  to  its  inherent  complexities  and  a  significant  degree  of  auditor  judgment  when 
performing audit procedures to evaluate the reasonableness of management’s conclusions. 

How the Critical Audit Matter Was Addressed in the Audit

Our audit procedures related to the application of specialized rules to account for the effects of cost-based rate regulation related 
to the uncertainty of future decisions by the rate regulators, specifically the Indiana Utility Regulatory Commission (IURC) and 
the Public Utility Commission of Ohio (PUCO), included the following, among others:

58

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

NISOURCE INC.
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

• We tested the effectiveness of management’s controls over (1) the evaluation of the likelihood of (a) the recovery of 
costs deferred as regulatory assets in future periods, and (b) regulatory developments that may affect the likelihood of 
recovering  costs  in  future  rates  or  of  a  future  reduction  in  rates;  and  (2)  the  evaluation  of  Hypothetical  Liquidation 
Book  Value  (HLBV)  Models  for  the  company’s  Renewable  Joint  Ventures  and  its  impact  on  the  Company’s 
regulatory assets for recovery in rate base.  

• We read relevant regulatory orders issued by the IURC and the PUCO, including regulatory statutes, interpretations, 
procedural  memorandums,  filings  made  by  interveners,  and  other  publicly  available  information  to  assess  the 
likelihood of recovery in future rates or a future reduction in rates based on precedents of the commissions’ treatment 
of similar costs under similar circumstances. We evaluated the external information and compared to management’s 
recorded regulatory asset and liability balances for completeness, including the implementation of new rate orders at 
Northern Indiana Public Service Company LLC’s electric business and Columbia Gas of Ohio, Inc.
For the Northern Indiana Public Service Company LLC gas base rate case proceeding, we inspected the Company’s 
and intervenors’ filings with the commissions that may impact the Company’s future rates, for any evidence that might 
contradict management’s assertions related to recoverability of recorded assets. 

•

• We  inquired  of  management  about  property,  plant,  and  equipment  that  may  be  abandoned  with  an  emphasis  on  the 
generation  strategy  related  to  Northern  Indiana  Public  Service  Company  LLC’s  R.M.  Schahfer  and  Michigan  City 
Generating Stations. We inspected minutes of the board of directors and regulatory orders and other filings with the 
IURC to identify evidence that may contradict management’s assertion regarding probability of an abandonment.
• We  read  the  relevant  regulatory  orders  issued  by  the  IURC  for  the  Company’s  renewable  energy  investments.  We 
evaluated the appropriateness of recognizing a regulatory liability or asset representing timing differences between the 
profit allocated under the HLBV method related to the consolidated joint ventures and the allowed earnings included in 
regulatory  rates.  We  also  evaluated  the  appropriateness  of  the  offset  to  the  regulatory  liability  or  asset  recorded  in 
depreciation expense.

/s/ DELOITTE & TOUCHE LLP
Columbus, Ohio
February 21, 2024 

We have served as the Company's auditor since 2002.

59

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

NISOURCE INC.
STATEMENTS OF CONSOLIDATED INCOME

Year Ended December 31, (in millions, except per share amounts)
Operating Revenues
Customer revenues

2023

2022

2021

$ 

5,347.8  $ 

5,738.6  $ 

4,731.3 

Other revenues

Total Operating Revenues
Operating Expenses
Cost of energy
Operation and maintenance

Depreciation and amortization

Loss (gain) on sale of assets, net

Other taxes

Total Operating Expenses
Operating Income 
Other Income (Deductions)

Interest expense, net
Other, net

Total Other Deductions, Net
Income before Income Taxes
Income Taxes
Net Income

Net (loss) income attributable to noncontrolling interest
Net Income attributable to NiSource

Preferred dividends
Preferred redemption premium
Net Income Available to Common Shareholders
Earnings Per Share 

Basic Earnings Per Share
Diluted Earnings Per Share

Basic Average Common Shares Outstanding
Diluted Average Common Shares

157.6 

5,505.4 

1,533.3 

1,494.9 

908.2 

2.9 

270.6 

4,209.9 
1,295.5 

(489.6)   
8.0 
(481.6)   
813.9 
139.5 
674.4 
(39.9)   
714.3 
(42.8)   
(9.8)   

661.7 

112.0 

5,850.6 

2,110.5 

1,489.4 

820.8 

(104.2)   

268.3 

4,584.8 
1,265.8 

(361.6)   
52.2 
(309.4)   
956.4 
164.6 
791.8 
(12.3)   
804.1 
(55.1)   
— 
749.0 

$ 
$ 

1.59  $ 
1.48  $ 
416.1 
447.9 

1.84  $ 
1.70  $ 
407.1 
442.7 

168.3 

4,899.6 

1,392.3 

1,456.0 

748.4 

7.7 

288.3 

3,892.7 
1,006.9 

(341.1) 
40.8 
(300.3) 
706.6 
117.8 
588.8 
3.9 
584.9 
(55.1) 
— 
529.8 

1.35 
1.27 
393.6 
417.3 

The accompanying Notes to Consolidated Financial Statements are an integral part of these statements.

60

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

NISOURCE INC.
STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME

Year Ended December 31, (in millions, net of taxes)
Net Income

2023

2022

2021

$ 

674.4  $ 

791.8  $ 

588.8 

Other comprehensive income:

Net unrealized gain (loss) on available-for-sale securities(1)
Net unrealized (loss) gain on cash flow hedges(2)
Unrecognized pension and OPEB benefit (costs)(3)

3.9 

(0.2)   

(0.2)   

(13.3)   

109.9 

(6.9)   

(3.9) 

25.4 

8.4 

Total other comprehensive income

Total Comprehensive Income

29.9 
618.7 
(1) Net unrealized gain (loss) on available-for-sale securities, net of $1.0 million tax expense, $3.5 million tax benefit and $1.0 million tax benefit in 2023, 2022 
and 2021, respectively.
(2)  Net  unrealized  (loss)  gain  on  derivatives  qualifying  as  cash  flow  hedges,  net  of  $0.1  million  tax  benefit,  $36.4  million  tax  expense  and  $8.4  million  tax 
expense in 2023, 2022 and 2021, respectively.  
(3) Unrecognized pension and OPEB benefit (costs), net of $0.1 million tax benefit, $2.3 million tax benefit and $3.8 million tax expense in 2023, 2022 and 
2021, respectively. 

89.7 
881.5  $ 

3.5 
677.9  $ 

$ 

The accompanying Notes to Consolidated Financial Statements are an integral part of these statements.

61

 
 
 
 
 
 
 
 
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

NISOURCE INC.
CONSOLIDATED BALANCE SHEETS

(in millions)
ASSETS
Property, Plant and Equipment

Plant

Accumulated depreciation and amortization

Net Property, Plant and Equipment(1)
Investments and Other Assets
Unconsolidated affiliates

Available-for-sale debt securities (amortized cost of $169.0 and $166.7, allowance for 
credit losses of $0.6 and $0.9, respectively)

Other investments

Total Investments and Other Assets
Current Assets

Cash and cash equivalents
Restricted cash
Accounts receivable 

Allowance for credit losses
Accounts receivable, net

Gas storage
Materials and supplies, at average cost
Electric production fuel, at average cost
Exchange gas receivable
Regulatory assets
Deposits to renewable generation asset developer
Prepayments and other

Total Current Assets(1)
Other Assets

December 31, 
2023

December 31, 
2022

$ 

30,482.1  $ 
(8,207.2)   

22,274.9 

27,551.3 
(7,708.7) 

19,842.6 

5.3 

159.1 
82.7 

247.1 

2,245.4 
35.7 
884.9 
(22.9)   
862.0 
265.8 
172.1 
65.3 
66.0 
214.3 
454.2 
118.6 
4,499.4 

2,245.9 
1,485.9 

1.6 

151.6 
71.0 

224.2 

40.8 
34.6 
1,065.8 
(23.9) 
1,041.9 
531.7 
151.4 
68.8 
128.1 
233.2 
143.8 
210.0 
2,584.3 

2,347.6 
1,485.9 

Regulatory assets
Goodwill
Deferred charges and other

Total Other Assets
Total Assets

252.0 
4,085.5 
26,736.6 
(1)Includes $1,369.8 million and $978.5 million in 2023 and 2022, respectively, of net property, plant and equipment assets and $63.6 million and $25.7 million 
in 2023 and 2022, respectively, of current assets of consolidated VIEs that may be used only to settle obligations of the consolidated VIEs. Refer to Note 4, 
"Noncontrolling Interest," for additional information.

324.0 
4,055.8 
31,077.2  $ 

$ 

The accompanying Notes to Consolidated Financial Statements are an integral part of these statements.

62

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

NISOURCE INC.
CONSOLIDATED BALANCE SHEETS

(in millions, except share amounts)
CAPITALIZATION AND LIABILITIES
Capitalization
Stockholders’ Equity

Common stock - $0.01 par value, 750,000,000 shares authorized; 447,381,671 and 
412,142,602 shares outstanding, respectively
Preferred stock - $0.01 par value, 20,000,000 shares authorized; 40,000 and 1,302,500 
shares outstanding, respectively
Treasury stock

Additional paid-in capital
Retained deficit

Accumulated other comprehensive loss

Total NiSource Stockholders' Equity

Noncontrolling interest in consolidated subsidiaries
Total Stockholders’ Equity
Long-term debt, excluding amounts due within one year
Total Capitalization
Current Liabilities

Current portion of long-term debt
Short-term borrowings
Accounts payable
Customer deposits and credits
Taxes accrued
Interest accrued
Asset retirement obligations
Exchange gas payable
Regulatory liabilities
Accrued compensation and employee benefits
Obligations to renewable generation asset developer
Other accruals

Total Current Liabilities(1)
Other Liabilities

Deferred income taxes
Accrued liability for postretirement and postemployment benefits

Regulatory liabilities
Asset retirement obligations

Other noncurrent liabilities and deferred credits

Total Other Liabilities(1)
Commitments and Contingencies (Refer to Note 19, "Other Commitments and 
Contingencies")
Total Capitalization and Liabilities

December 31, 
2023

December 31, 
2022

$ 

4.5  $ 

4.2 

486.1 

(99.9)   

8,879.5 

(967.0)   

(33.6)   

8,269.6 
1,866.7 
10,136.3 
11,055.5 
21,191.8 

1,546.5 

(99.9) 

7,375.3 

(1,213.6) 

(37.1) 
7,575.4 
326.4 
7,901.8 
9,523.6 
17,425.4 

23.8 
3,048.6 
749.4 
294.4 
166.2 
136.1 
72.5 
50.5 
278.6 
227.6 
— 
217.4 
5,265.1 

2,080.4 

250.1 
1,510.7 

480.5 

298.6 
4,620.3 

30.0 
1,761.9 
899.5 
324.7 
246.2 
138.4 
35.5 
147.6 
236.8 
167.5 
347.2 
325.2 
4,660.5 

1,854.5 

245.5 
1,775.8 

478.1 

296.8 
4,650.7 

26,736.6 
(1)Includes  $68.3  million  and  $128.2  million  in  2023  and  2022,  respectively,  of  current  liabilities  and  $55.7  million  and  $30.6  million  in  2023  and  2022, 
respectively, of other liabilities of consolidated VIEs that creditors do not have recourse to our general credit. Refer to Note 4, "Noncontrolling Interest," for 
additional information.

31,077.2  $ 

$ 

The accompanying Notes to Consolidated Financial Statements are an integral part of these statements.

63

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

NISOURCE INC.
STATEMENTS OF CONSOLIDATED CASH FLOWS

Year Ended December 31, (in millions)

Operating Activities

Net Income
Adjustments to Reconcile Net Income to Net Cash from Operating Activities:

Depreciation and amortization
Deferred income taxes and investment tax credits
Stock compensation expense and 401(k) profit sharing contribution
Loss (gain) on sale of assets
Other adjustments

Changes in Assets and Liabilities:

Accounts receivable
Gas storage and other inventories
Accounts payable
Exchange gas receivable/payable
Other accruals
Prepayments and other current assets
Regulatory assets/liabilities
Postretirement and postemployment benefits
Deferred charges and other noncurrent assets
Other noncurrent liabilities and deferred credits

Net Cash Flows from Operating Activities

Investing Activities

Capital expenditures
Insurance Recoveries
Cost of removal 
Purchases of available-for-sale securities
Sales of available-for-sale securities
Milestone and final payments to renewable generation asset developer
Other investing activities

Net Cash Flows used for Investing Activities

Financing Activities

Proceeds from issuance of long-term debt
Repayments of long-term debt and finance lease obligations
Issuance of short term credit agreements
Net change in commercial paper and other short-term borrowings
Issuance of common stock, net of issuance costs
Payment of obligation to renewable generation asset developer
Equity costs, premiums and other debt related costs
Contributions from noncontrolling interests
Distributions to noncontrolling interest
Issuance of equity units, net of underwriting costs
Redemption of preferred stock
Dividends paid - common stock
Preferred stock redemption premium
Dividends paid - preferred stock
Contract liability payment

Net Cash Flows from Financing Activities
Change in cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash at beginning of period
Cash, Cash Equivalents and Restricted Cash at End of Period

Reconciliation to Balance Sheet

Cash and cash equivalents
Restricted Cash

Total Cash, Cash Equivalents and Restricted Cash

2023

2022

2021

$ 

674.4  $ 

791.8  $ 

588.8 

908.2 
134.1 
33.5 
2.9 
(17.9) 

184.1 
233.9 
(171.8) 
126.5 
(102.9) 
36.7 
(26.2) 
(22.0) 
(10.1) 
(48.3) 
1,935.1 

(2,645.8) 
3.0 
(160.8) 
(42.8) 
39.9 
(761.4) 
(3.7) 
(3,571.6) 

1,488.7 
(33.1) 
650.0 
636.4 
12.9 
(347.2) 
(30.2) 
2,402.8 
(14.1) 
— 
(393.9) 
(413.5) 
(6.2) 
(43.8) 
(66.6) 
3,842.2 
2,205.7 
75.4 
2,281.1  $ 

820.8 
156.9 
24.9 
(105.3) 
5.7 

(216.3) 
(258.9) 
165.0 
57.8 
73.4 
(9.8) 
(129.4) 
84.7 
(4.1) 
(47.8) 
1,409.4 

(2,203.1) 
105.0 
(151.7) 
(73.5) 
75.7 
(323.9) 
1.3 
(2,570.2) 

345.6 
(60.3) 
1,000.0 
202.2 
154.3 
— 
(13.0) 
21.2 
(6.0) 
— 
— 
(381.5) 
— 
(55.1) 
(66.1) 
1,141.3 
(19.5) 
94.9 
75.4  $ 

748.4 
111.9 
24.3 
5.6 
(0.7) 

(40.3) 
(112.9) 
54.9 
(114.2) 
43.0 
(36.6) 
76.8 
(96.4) 
(4.7) 
(30.0) 
1,217.9 

(1,838.0) 
— 
(121.1) 
(102.9) 
97.8 
(240.4) 
(1.0) 
(2,204.9) 

— 
(25.7) 
— 
57.0 
299.6 
— 
(18.2) 
245.1 
(0.6) 
839.9 
— 
(345.2) 
— 
(55.1) 
(40.5) 
956.3 
(30.7) 
125.6 
94.9 

2023

2022

2021

2,245.4 
35.7 
2,281.1 

40.8
34.6
75.4

84.2
10.7
94.9

$ 

The accompanying Notes to Consolidated Financial Statements are an integral part of these statements.

64

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

NISOURCE INC.
STATEMENTS OF CONSOLIDATED STOCKHOLDERS' EQUITY

(in millions)

Common
Stock

Preferred 
Stock(1)

Treasury
Stock

Additional
Paid-In
Capital

Retained 
Deficit

Accumulated
Other
Comprehensive
Loss

Noncontrolling 
Interest in 
Consolidated 
Subsidiaries

Total

Balance as of January 1, 2021

$ 

3.9 

$ 

880.0 

$ 

(99.9)  $ 

6,890.1 

$  (1,765.2)  $ 

(156.7)  $ 

85.6 

$  5,837.8 

Comprehensive Income:

Net Income

Other comprehensive income, net of tax

Dividends:

Common stock ($0.88 per share)

Preferred stock (See Note 6)

Contributions from noncontrolling interest 

Distributions to noncontrolling interest

Stock issuances:

Equity Units

Employee stock purchase plan

Long-term incentive plan

401(k) and profit sharing 

ATM Program

Balance as of December 31, 2021

$ 

Comprehensive Income:

Net Income (Loss)

Other comprehensive income, net of tax

Dividends:

Common stock ($0.94 per share)

Preferred stock (See Note 6)

Contributions from noncontrolling interest

Distributions to noncontrolling interest

Stock issuances:

Employee stock purchase plan

Long-term incentive plan

401(k) and profit sharing 

ATM Program

Balance as of December 31, 2022

$ 

Comprehensive Income:

Net Income (Loss)

Other comprehensive income, net of tax

Dividends:

Common stock ($1.00 per share)

Preferred stock (See Note 6)

Noncontrolling Interests:

Issuance of noncontrolling interest(2)
Contributions from noncontrolling interest (3)

Distributions to noncontrolling interest

Stock issuances (redemptions):

Equity Units

Series A Preferred stock redemption

Series A Preferred stock redemption premium

Employee stock purchase plan

Long-term incentive plan

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

0.2 

4.1 

— 

— 

— 

— 

— 

— 

— 

— 

— 

0.1 

4.2 

— 

— 

— 

— 

— 

— 

— 

0.3 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

666.5 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

5.0 

11.8 

9.5 

287.9 

584.9 

— 

(345.5) 

(55.1) 

— 

— 

— 

— 

— 

— 

— 

— 

29.9 

— 

— 

— 

— 

— 

— 

— 

— 

— 

3.9 

— 

— 

— 

236.7 

(0.6) 

— 

— 

— 

— 

— 

588.8 

29.9 

(345.5) 

(55.1) 

236.7 

(0.6) 

666.5 

5.0 

11.8 

9.5 

288.1 

$  1,546.5 

$ 

(99.9)  $ 

7,204.3 

$  (1,580.9)  $ 

(126.8)  $ 

325.6 

$  7,272.9 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

5.2 

14.3 

9.7 

141.8 

804.1 

— 

(381.7) 

(55.1) 

— 

— 

— 

— 

— 

— 

— 

89.7 

— 

— 

— 

— 

— 

— 

— 

— 

(12.3) 

— 

— 

— 

19.1 

(6.0) 

— 

— 

— 

— 

791.8 

89.7 

(381.7) 

(55.1) 

19.1 

(6.0) 

5.2 

14.3 

9.7 

141.9 

$  1,546.5 

$ 

(99.9)  $ 

7,375.3 

$  (1,213.6)  $ 

(37.1)  $ 

326.4 

$  7,901.8 

— 

— 

— 

— 

— 

— 

— 

(666.5) 

(393.9) 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

809.6 

— 

— 

666.2 

— 

— 

5.9 

12.6 

714.3 

— 

(414.1) 

(43.8) 

— 

— 

— 

— 

— 

(9.8) 

— 

— 

— 

3.5 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

(39.9) 

— 

— 

— 

674.4 

3.5 

(414.1) 

(43.8) 

1,361.1 

2,170.7 

233.2 

(14.1) 

— 

— 

— 

— 

— 

233.2 

(14.1) 

— 

(393.9) 

(9.8) 

5.9 

12.6 

401(k) and profit sharing

9.9 
1,866.7  $ 10,136.3 
Balance as of December 31, 2023
(1) Series A and Series C shares had an aggregate liquidation preference of $400M and $863M, respectively. Series B has an aggregate liquidation preference of 
$500M See Note 6, "Equity," for additional information. 
(2) Relates to the NIPSCO Minority Interest Transaction. See Note 4, "Noncontrolling Interest," for additional discussion.
(3) Contributions from noncontrolling interest is net of transaction costs. 

9.9 
(99.9)  $  8,879.5  $  (967.0)  $ 

— 
486.1  $ 

— 
(33.6)  $ 

— 
4.5  $ 

— 

— 

— 

$ 

The accompanying Notes to Consolidated Financial Statements are an integral part of these statements.

65

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

NISOURCE INC.
STATEMENTS OF CONSOLIDATED STOCKHOLDERS’ EQUITY (continued)

(in thousands)

Balance as of January 1, 2021

Issued:

Equity Units(1)

Employee stock purchase plan

Long-term incentive plan

401(k) and profit sharing plan

ATM Program

Balance as of December 31, 2021

Issued:

Employee stock purchase plan

Long-term incentive plan

401(k) and profit sharing plan

ATM Program

Balance as of December 31, 2022

Issued/(Redeemed):

Employee stock purchase plan

Long-term incentive plan

401(k) and profit sharing plan
Equity Units(1)

Series A Preferred Stock

Balance as of December 31, 2023

(1) )See Note 6, "Equity," for additional information. 

Preferred

Shares

Common

Shares

Treasury

Outstanding

440 

395,723 

(3,963) 

391,760 

863 

— 

— 

— 

— 

1,303 

— 

— 

— 

— 

1,303 

— 

— 

— 

(863) 

(400) 

40 

— 

209 

418 

391 

12,525 

409,266 

186 

375 

337 

5,942 

416,106 

216 

758 

366 

33,899 

— 

451,345 

— 

— 

— 

— 

— 

(3,963) 

— 

— 

— 

— 

(3,963) 

— 

— 

— 

— 

— 

— 

209 

418 

391 

12,525 

405,303 

186 

375 

337 

5,942 

412,143 

216 

758 

366 

33,899 

— 

(3,963) 

447,382 

The accompanying Notes to Consolidated Financial Statements are an integral part of these statements.

66

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

1. 

Nature of Operations and Summary of Significant Accounting Policies

A. 
    Company Structure and Principles of Consolidation. We are an energy holding company incorporated in Delaware 
and headquartered in Merrillville, Indiana. Our subsidiaries are fully regulated natural gas and electric utility companies serving 
approximately  3.8  million  customers  in  six  states.  We  generate  substantially  all  of  our  operating  income  through  these  rate-
regulated  businesses.  The  consolidated  financial  statements  include  the  accounts  of  us,  our  majority-owned  subsidiaries,  and 
VIEs of which we are the primary beneficiary after the elimination of all intercompany accounts and transactions.

B.              Use  of  Estimates.  The  preparation  of  financial  statements  in  conformity  with  GAAP  requires  management  to  make 
estimates  and  assumptions  that  affect  the  reported  amounts  of  assets  and  liabilities  and  disclosure  of  contingent  assets  and 
liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. 
Actual results could differ from those estimates.

C. 
    Cash, Cash Equivalents and Restricted Cash. We consider all highly liquid investments with original maturities of 
three  months  or  less  to  be  cash  equivalents.  We  report  amounts  deposited  in  brokerage  accounts  for  margin  requirements  as 
restricted cash. In addition, we have amounts deposited in trusts to satisfy requirements for the provision of various property, 
liability, workers compensation, and long-term disability insurance, and holdbacks related to certain joint venture development 
agreements  which  is  classified  as  restricted  cash  on  the  Consolidated  Balance  Sheets  and  disclosed  with  cash  and  cash 
equivalents on the Statements of Consolidated Cash Flows.

D. 
    Accounts Receivable and Unbilled Revenue. Accounts receivable on the Consolidated Balance Sheets includes both 
billed and unbilled amounts. Unbilled amounts of accounts receivable relate to a portion of a customer’s consumption of gas or 
electricity  from  their  last  cycle  billing  date  through  the  last  day  of  the  month  (balance  sheet  date).  Factors  taken  into 
consideration  when  estimating  unbilled  revenue  include  historical  usage,  customer  rates,  weather  and  reasonable  and 
supportable forecasts. Accounts receivable fluctuates from year to year depending in large part on weather impacts and price 
volatility. Our accounts receivable on the Consolidated Balance Sheets include unbilled revenue, less reserves. The reserve for 
uncollectible receivables is our best estimate of the amount of probable credit losses in the existing accounts receivable. We 
determined  the  reserve  based  on  historical  collection  experience,  current  market  conditions  and  reasonable  and  supportable 
forecasts. Account balances are charged against the allowance when it is anticipated the receivable will not be recovered. Refer 
to  Note  3,  "Revenue  Recognition,"  for  additional  information  on  customer-related  accounts  receivable,  including  amounts 
related to unbilled revenues. 

E.              Investments  in  Debt  Securities.  Our  investments  in  debt  securities  are  carried  at  fair  value  and  are  designated  as 
available-for-sale.  These  investments  are  included  within  “Available-for-sale  debt  securities”  on  the  Consolidated  Balance 
Sheets. Unrealized gains and losses, net of deferred income taxes, are recorded to accumulated other comprehensive income or 
loss. At each reporting period these investments are qualitatively and quantitatively assessed to determine whether a decline in 
fair value below the amortized cost basis has resulted from a credit loss or other factors. Impairments related to credit loss are 
recorded  through  an  allowance  for  credit  losses.  Impairments  that  are  not  related  to  credit  losses  are  included  in  other 
comprehensive  income  and  are  reflected  in  the  Statements  of  Consolidated  Income.  No  material  impairment  charges  were 
recorded for the years ended December 31, 2023, 2022 or 2021. Refer to Note 14, "Fair Value," for additional information.

F. 
    Basis of Accounting for Rate-Regulated Subsidiaries. Rate-regulated subsidiaries account for and report assets and 
liabilities consistent with the economic effect of the way in which regulators establish rates, if the rates established are designed 
to  recover  the  costs  of  providing  the  regulated  service  and  it  is  probable  that  such  rates  can  be  billed  and  collected.  Certain 
expenses  and  credits  subject  to  utility  regulation  or  rate  determination  normally  reflected  in  income  are  deferred  on  the 
Consolidated  Balance  Sheets  and  are  later  recognized  in  income  as  the  related  amounts  are  included  in  customer  rates  and 
recovered from or refunded to customers.

We continually evaluate whether or not our operations are within the scope of ASC 980 and rate regulations. As part of that 
analysis, we evaluate probability of recovery for our regulatory assets. In management’s opinion, our regulated subsidiaries will 
be  subject  to  regulatory  accounting  for  the  foreseeable  future.  Refer  to  Note  12,  "Regulatory  Matters,"  for  additional 
information.

G. 
    Plant and Other Property and Related Depreciation and Maintenance. Property, plant and equipment (principally 
utility plant) is stated at cost. Our rate-regulated subsidiaries record depreciation using composite rates on a straight-line basis 
over the remaining service lives of the electric, gas and common properties, as approved by the appropriate regulators.

67

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

Non-utility  property  includes  renewable  generation  assets  owned  by  JVs  of  which  we  are  the  primary  beneficiary  and  is 
generally  depreciated  over  the  life  of  the  associated  assets.  Refer  to  Note  9,  "Property,  Plant  and  Equipment,"  for  additional 
information related to depreciation expense.

For rate-regulated companies where provided for in rates, AFUDC is capitalized on all classes of property except organization 
costs, land, autos, office equipment, tools and other general property purchases. The allowance is applied to construction costs 
for  that  period  of  time  between  the  date  of  the  expenditure  and  the  date  on  which  such  project  is  placed  in  service.  Our 
consolidated pre-tax rate for AFUDC was 3.9% in 2023, 3.4% in 2022 and 3.3% in 2021. 

Generally,  our  subsidiaries  follow  the  practice  of  charging  maintenance  and  repairs,  including  the  cost  of  removal  of  minor 
items of property, to expense as incurred. When our subsidiaries retire regulated property, plant and equipment, original cost 
plus the cost of retirement, less salvage value, is charged to accumulated depreciation. However, when it becomes probable a 
regulated asset will be retired substantially in advance of its original expected useful life or is abandoned, the cost of the asset 
and  the  corresponding  accumulated  depreciation  is  recognized  as  a  separate  asset.  If  the  asset  is  still  in  operation,  the  gross 
amounts are classified as "Non-Utility and Other " as described in Note 9, "Property, Plant and Equipment." If the asset is no 
longer operating but still subject to recovery, the net amount is classified in "Regulatory assets" on the Consolidated Balance 
Sheets. If we are able to recover a full return of and on investment, the carrying value of the asset is based on historical cost. If 
we are not able to recover a full return on investment, a loss on impairment is recognized to the extent the net book value of the 
asset exceeds the present value of future revenues discounted at the incremental borrowing rate.

External  and  internal  costs  associated  with  on-premise  computer  software  developed  for  internal  use  are  capitalized. 
Capitalization  of  such  costs  commences  upon  the  completion  of  the  preliminary  stage  of  each  project.  Once  the  installed 
software is ready for its intended use, such capitalized costs are amortized on a straight-line basis generally over a period of five 
years.  External  and  internal  up-front  implementation  costs  associated  with  cloud  computing  arrangements  that  are  service 
contracts  are  deferred  on  the  Consolidated  Balance  Sheets.  Once  the  installed  software  is  ready  for  its  intended  use,  such 
deferred costs are amortized on a straight-line basis to "Operation and maintenance," over the minimum term of the contract 
plus contractually-provided renewal periods that are reasonably expected to be exercised.  

H. 
    Goodwill and Other Intangible Assets. Substantially all of our goodwill relates to the excess of cost over the fair 
value  of  the  net  assets  acquired  in  the  Columbia  acquisition  on  November  1,  2000.  We  test  our  goodwill  for  impairment 
annually as of May 1, or more frequently if events and circumstances indicate that goodwill might be impaired. Fair value of 
our  reporting  units  is  determined  using  a  combination  of  income  and  market  approaches.  See  Note  10,  "Goodwill,"  for 
additional information.

I.         Accounts Receivable Transfer Programs. Certain of our subsidiaries have agreements with third parties to transfer 
certain accounts receivable without recourse. These transfers of accounts receivable are accounted for as secured borrowings. 
The entire gross receivables balance remains on the December 31, 2023 and 2022 Consolidated Balance Sheets. When amounts 
are  securitized,  the  short-term  debt  is  recorded  in  the  amount  of  proceeds  received  from  the  transferees  involved  in  the 
transactions. Refer to Note 7, "Short-Term Borrowings," for further information.

J. 
       Gas  Cost  and  Fuel  Adjustment  Clause.  Our  regulated  subsidiaries  defer  most  differences  between  gas  and  fuel 
purchase costs and the recovery of such costs in revenues and adjust future billings for such deferrals on a basis consistent with 
applicable  state-approved  tariff  provisions.  These  deferred  balances  are  recorded  as  "Regulatory  assets"  or  "Regulatory 
liabilities,"  as  appropriate,  on  the  Consolidated  Balance  Sheets.  Refer  to  Note  12,  "Regulatory  Matters,"  for  additional 
information.

K.
      Gas  Storage  and  Other  Inventories.  Both  the  LIFO  inventory  methodology  and  the  weighted  average  cost 
methodology are used to value natural gas in storage, as approved by regulators for all of our regulated subsidiaries. Inventory 
valued using LIFO was $43.9 million and $43.0 million at December 31, 2023 and 2022, respectively. Based on the average 
cost of gas using the LIFO method, the estimated replacement cost of gas in storage was less than the stated LIFO cost by $22.5 
million at December 31, 2023 and was greater than the stated LIFO cost by $7.7 million at December 31, 2022. As all LIFO 
inventory  costs  are  collected  from  customers  through  our  rate-regulated  subsidiaries,  no  inventory  impairment  has  been 
recorded. Gas inventory valued using the weighted average cost methodology was $222.0 million at December 31, 2023 and 
$488.7 million at December 31, 2022.

Electric production fuel is valued using the weighted average cost inventory methodology, as approved by NIPSCO's regulator. 

68

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

Materials and supplies are valued using the weighted average cost inventory methodology. Materials and supplies are charged 
to expense or capitalized to property, plant and equipment when issued.

    Accounting for Exchange and Balancing Arrangements of Natural Gas. Our Gas Distribution Operations segment 
L. 
enters  into  balancing  and  exchange  arrangements  of  natural  gas  as  part  of  its  operations  and  off-system  sales  programs.  We 
record a receivable or payable for any of our respective cumulative gas imbalances, as well as for any gas inventory borrowed 
or  lent  under  a  Gas  Distribution  Operations  exchange  agreement.  Exchange  gas  is  valued  based  on  individual  regulatory 
jurisdiction requirements (for example, historical spot rate, spot at the beginning of the month). These receivables and payables 
are recorded as “Exchange gas receivable” or “Exchange gas payable” on our Consolidated Balance Sheets, as appropriate.  

M.        Accounting for Risk Management Activities. We account for our derivatives and hedging activities in accordance 
with  ASC  815.  We  recognize  all  derivatives  as  either  assets  or  liabilities  on  the  Consolidated  Balance  Sheets  at  fair  value, 
unless such contracts are exempted as a normal purchase normal sale under the provisions of the standard. The accounting for 
changes in the fair value of a derivative depends on the intended use of the derivative and resulting designation. 

We  do  not  offset  the  fair  value  amounts  recognized  for  any  of  our  derivative  instruments  against  the  fair  value  amounts 
recognized for the right to reclaim cash collateral or obligation to return cash collateral for derivative instruments executed with 
the  same  counterparty  under  a  master  netting  arrangement.  See  Note  13,  "Risk  Management  Activities,"  for  additional 
information.

N.              Income  Taxes  and  Investment  Tax  Credits.  We  record  income  taxes  to  recognize  full  interperiod  tax  allocations. 
Under the asset and liability method, deferred income taxes are provided for the tax consequences of temporary differences by 
applying enacted statutory tax rates applicable to future years to differences between the financial statement carrying amount 
and the tax basis of existing assets and liabilities. Investment tax credits associated with regulated operations are deferred and 
amortized as a reduction to income tax expense over the estimated useful lives of the related properties.

To  the  extent  certain  deferred  income  taxes  of  the  regulated  companies  are  recoverable  or  payable  through  future  rates, 
regulatory assets and liabilities have been established. Regulatory assets for income taxes are primarily attributable to property-
related tax timing differences for which deferred taxes had not been provided in the past when regulators did not recognize such 
taxes  as  costs  in  the  rate-making  process.  Regulatory  liabilities  for  income  taxes  are  primarily  attributable  to  the  regulated 
companies’ obligation to refund to ratepayers deferred income taxes provided at rates higher than the current Federal income 
tax  rate.  Such  property-related  amounts  are  credited  to  ratepayers  using  either  the  average  rate  assumption  method  or  the 
reverse South Georgia method. Non property-related amounts are credited to ratepayers consistent with state utility commission 
direction. 

Pursuant to the Internal Revenue Code and relevant state taxing authorities, we and our subsidiaries file consolidated income 
tax returns for federal and certain state jurisdictions. We and our subsidiaries are parties to a tax sharing agreement. Income 
taxes recorded by each party represent amounts that would be owed had the party been separately subject to tax. 

    Pension Remeasurement. We utilize a third-party actuary for the purpose of performing actuarial valuations of our 
O. 
defined benefit plans. Annually, as of December 31, we perform a remeasurement for our defined benefit plans. Quarterly, we 
monitor for significant events, and if a significant event is identified, we perform a qualitative and quantitative assessment to 
determine  if  the  resulting  remeasurement  would  materially  impact  the  NiSource  financial  statements.  If  material,  an  interim 
remeasurement is performed. See Note 16, "Pension and Other Postemployment Benefits," for additional information.

P. 
    Environmental Expenditures. We accrue for costs associated with environmental remediation obligations, including 
expenditures related to asset retirement obligations and cost of removal, when the incurrence of such costs is probable and the 
amounts  can  be  reasonably  estimated,  regardless  of  when  the  expenditures  are  actually  made.  The  undiscounted  estimated 
future expenditures are based on currently enacted laws and regulations, existing technology and estimated site-specific costs 
where  assumptions  may  be  made  about  the  nature  and  extent  of  site  contamination,  the  extent  of  cleanup  efforts,  costs  of 
alternative cleanup methods and other variables. The liability is adjusted as further information is discovered or circumstances 
change.  The  accruals  for  estimated  environmental  expenditures  are  recorded  on  the  Consolidated  Balance  Sheets  in  “Other 
accruals” for short-term portions of these liabilities and “Other noncurrent liabilities” for the respective long-term portions of 
these  liabilities.  Rate-regulated  subsidiaries  applying  regulatory  accounting  establish  regulatory  assets  on  the  Consolidated 
Balance Sheets to the extent that future recovery of environmental remediation costs is probable through the regulatory process. 
Refer  to  Note  11,  "Asset  Retirement  Obligations,"  and  Note  19,  "Other  Commitments  and  Contingencies,"  for  further 
information.

69

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

Q.        Excise Taxes. As an agent for some state and local governments, we invoice and collect certain excise taxes levied by 
state and local governments on customers and record these amounts as liabilities payable to the applicable taxing jurisdiction. 
Such balances are presented within "Other accruals" on the Consolidated Balance Sheets. These types of taxes collected from 
customers,  comprised  largely  of  sales  taxes,  are  presented  on  a  net  basis  affecting  neither  revenues  nor  cost  of  sales.  We 
account  for  excise  taxes for which we are liable  by recording a liability for the expected tax with a corresponding  charge  to 
“Other taxes” expense on the Statements of Consolidated Income. 

R.        Accrued Insurance Liabilities. We accrue for insurance costs related to workers compensation, automobile, property, 
general  and  employment  practices  liabilities  based  on  the  most  probable  value  of  each  claim.  In  general,  claim  values  are 
determined by professional, licensed loss adjusters who consider the facts of the claim, anticipated indemnification and legal 
expenses, and respective state rules. Claims are reviewed by us at least quarterly and an adjustment is made to the accrual based 
on the most current information. 

S.          Noncontrolling  Interest.  We  maintain  a  controlling  financial  interest  in  certain  of  our  less  than  wholly  owned 
subsidiaries.  We  consolidate  these  subsidiaries  as  either  voting  interest  entities  or  VIEs  and  present  the  third-party  investors' 
portion of our net income (loss), net assets and comprehensive income (loss) as noncontrolling interest. Noncontrolling interest 
is included as a component of equity on the Consolidated Balance Sheet. 

On December 31, 2023, the NIPSCO Minority Interest Transaction closed and a 19.9% equity interest in NIPSCO Holdings II, 
the sole owner of NIPSCO, was issued to an affiliate of Blackstone. NIPSCO Holdings II does not meet the criteria of a VIE 
and  instead  is  consolidated  under  the  voting  interest  model  in  accordance  with  ASC  810  as  we  maintain  control  through  a 
majority  interest  in  NIPSCO  Holdings  II.  Refer  to  Note  4,  "Noncontrolling  Interest,"  for  further  discussion  on  the  NIPSCO 
Minority Interest Transaction.

We fund a significant portion of our renewable generation assets through JVs with tax equity partners. We consolidate these 
JVs  in  accordance  with  ASC  810  as  they  are  VIEs  in  which  we  hold  a  variable  interest,  and  we  control  decisions  that  are 
significant to the JVs' ongoing operations and economic results (i.e., we are the primary beneficiary).

These JVs are subject to profit sharing arrangements in which the allocation of the JVs' cash distributions and tax benefits to 
members  is  based  on  factors  other  than  members'  relative  ownership  percentages.  As  such,  we  utilize  the  HLBV  method  to 
allocate  proceeds  to  each  partner  at  the  balance  sheet  date  based  on  the  liquidation  provisions  of  the  related  JV's  operating 
agreement and adjusts the amount of the VIE's net income attributable to us and the noncontrolling tax equity member during 
the period.

In each reporting period, the application of HLBV to our consolidated VIEs results in a difference between the amount of profit 
from the consolidated JVs and the amount included in regulated rates. As discussed above in "F. Basis of Accounting for Rate-
Regulated  Subsidiaries,"  we  are  subject  to  the  accounting  and  reporting  requirements  of  ASC  980.  In  accordance  with  these 
principles, we recognize a regulatory liability or asset for amounts representing the timing difference between the profit earned 
from the JVs and the amount included in regulated rates to recover our approved investments in consolidated JVs. The amounts 
recorded in income will ultimately reflect the amount allowed in regulated rates to recover our investments over the useful life 
of the projects. The offset to the regulatory liability or asset associated with our renewable investments included in regulated 
rates is recorded in "Depreciation expense" on the Statements of Consolidated Income.

2.  

Recent Accounting Pronouncements

Recently Issued Accounting Pronouncements

In  August  2023,  the  Financial  Accounting  Standards  Board  ("FASB")  issued  ASU  2023-05,  Business  Combinations-  Joint 
Venture Formations. This pronouncement codifies ASU 805-60 to provide guidance for the recognition and initial measurement 
of joint venture formations. This guidance requires that the initial assets contributed and liabilities assumed be recognized and 
measured at fair value, with additional disclosure requirements during the period a joint venture is formed. The pronouncement 
is effective for joint ventures formed on or after January 1, 2025. We are currently evaluating the impact of this pronouncement 
on the formation of future joint ventures. 

In  November  2023,  the  FASB  issued  ASU  2023-07,  Segment  Reporting  (Topic  280):  Improvements  to  Reportable  Segment 
Disclosures.  This  pronouncement  enhances  annual  and  interim  disclosure  requirements  over  reportable  segments,  primarily 
through  enhanced  disclosures  about  significant  segment  expenses.  Specifically,  the  pronouncement  requires  disclosure  of 
significant  segment  expenses  that  are  regularly  provided  to  the  Chief  Operating  Decision  Maker  ("CODM")  and  included 
within  each  reported  measure  of  segment  profit  or  loss,  disclosure  of  an  amount  for  other  segment  items  representing  the 

70

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

difference between segment revenue and segment expenses already disclosed, disclosure of all required annual disclosures for 
interim  periods  and  disclosure  of  title  and  position  of  the  CODM  and  how  the  CODM  uses  reported  measures.  The 
pronouncement also allows for more than one measure of segment profit if the CODM uses more than one measure in assessing 
segment  performance.  The  pronouncement  is  effective  for  annual  periods  beginning  after  December  15,  2023  and  interim 
periods within fiscal years beginning after December 15, 2024, with early adoption permitted. We are currently evaluating the 
impacts this ASU will have on our disclosures.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. This 
pronouncement enhances required income tax disclosures. The pronouncement will require disclosure of specific categories and 
reconciling  items  included  in  the  rate  reconciliation,  disaggregation  between  federal,  state  and  local  income  taxes  paid,  and 
disclosure  of  income  taxes  paid  by  jurisdictions  over  a  certain  threshold.  Additionally,  the  pronouncement  eliminates  certain 
required disclosures related to unrecognized tax benefits. This ASU is effective for annual periods beginning after December 
15, 2024, with early adoption permitted, and is to be applied on a prospective basis with retrospective application permitted. We 
are currently evaluating the impacts this amendment will have on our income tax disclosures. 

Recently Adopted Accounting Pronouncements

In  September  2022,  the  FASB  issued  ASU  2022-04,  Liabilities-Supplier  Finance  Programs  (Topic  405-50)  -  Disclosure  of 
Supplier  Finance  Program  Obligations.  This  pronouncement  requires  that  a  buyer  in  a  supplier  finance  program  disclose 
sufficient  information  to  allow  a  user  of  financial  statements  to  understand  the  program’s  nature,  activity  during  the  period, 
changes  from  period  to  period,  and  potential  magnitude.  This  pronouncement  is  expected  to  improve  financial  reporting  by 
requiring  new  disclosures  about  supplier  finance  programs,  thereby  allowing  financial  statement  users  to  better  consider  the 
effect  of  such  programs  on  an  entity’s  working  capital,  liquidity,  and  cash  flows.  This  pronouncement  is  effective  for  fiscal 
years beginning after December 15, 2022. The company adopted this pronouncement as of January 1, 2023. We had no active 
supplier finance programs as of December 31, 2023.

3.  

Revenue Recognition

Customer  Revenues.  Substantially  all  of  our  revenues  are  tariff-based.  Under  ASC  606,  the  recipients  of  our  utility  service 
meet  the  definition  of  a  customer,  while  the  operating  company  tariffs  represent  an  agreement  that  meets  the  definition  of  a 
contract, which creates enforceable rights and obligations. Customers in certain of our jurisdictions participate in programs that 
allow for a fixed payment each month regardless of usage. Payments received that exceed the value of gas or electricity actually 
delivered  are  recorded  as  a  liability  and  presented  in  "Customer  Deposits  and  Credits"  on  the  Consolidated  Balance  Sheets. 
Amounts in this account are reduced and revenue is recorded when customer usage exceeds payments received.

We have identified our performance obligations created under tariff-based sales as 1) the commodity (natural gas or electricity, 
which  includes  generation  and  capacity)  and  2)  delivery.  These  commodities  are  sold  and  /  or  delivered  to  and  generally 
consumed by customers simultaneously, leading to satisfaction of our performance obligations over time as gas or electricity is 
delivered  to  customers.  Due  to  the  at-will  nature  of  utility  customers,  performance  obligations  are  limited  to  the  services 
requested and received to date. Once complete, we generally maintain no additional performance obligations.

Transaction  prices  for  each  performance  obligation  are  generally  prescribed  by  each  operating  company’s  respective  tariff. 
Rates include provisions to adjust billings for fluctuations in fuel and purchased power costs and cost of natural gas. Revenues 
are  adjusted  for  differences  between  actual  costs,  subject  to  reconciliation,  and  the  amounts  billed  in  current  rates.  Under  or 
over  recovered  revenues  related  to  these  cost  recovery  mechanisms  are  included  in  "Regulatory  Assets"  or  "Regulatory 
Liabilities" on the Consolidated Balance Sheets and are recovered from or returned to customers through adjustments to tariff 
rates. As we provide and deliver service to customers, revenue is recognized based on the transaction price allocated to each 
performance  obligation.  Distribution  revenues  are  generally  considered  daily  or  "at-will"  contracts  as  customers  may  cancel 
their service at any time (subject to notification requirements), and revenue generally represents the amount we are entitled to 
bill customers.

In addition to tariff-based sales, our Gas Distribution Operations segment enters into balancing and exchange arrangements of 
natural gas as part of our operations and off-system sales programs. Performance obligations for these types of sales include 
transportation  and  storage  of  natural  gas  and  can  be  satisfied  at  a  point  in  time  or  over  a  period  of  time,  depending  on  the 
specific transaction. For those transactions that span a period of time, we record a receivable or payable for any cumulative gas 
imbalances, as well as for any gas inventory borrowed or lent under a Gas Distributions Operations exchange agreement.

Revenue Disaggregation and Reconciliation. We disaggregate revenue from contracts with customers based upon reportable 
segment, as well as by customer class. The Gas Distribution Operations segment provides natural gas service and transportation 

71

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

for  residential,  commercial  and  industrial  customers  in  Ohio,  Pennsylvania,  Virginia,  Kentucky,  Maryland,  and  Indiana.  The 
Electric Operations segment provides electric service in 20 counties in the northern part of Indiana.

Other  Revenues.  As  permitted  by  accounting  principles  generally  accepted  in  the  United  States,  regulated  utilities  have  the 
ability  to  earn  certain  types  of  revenue  that  are  outside  the  scope  of  ASC  606.  These  revenues  primarily  represent  revenue 
earned under alternative revenue programs. Alternative revenue programs represent regulator-approved mechanisms that allow 
for the adjustment of billings and revenue for certain approved programs. We maintain a variety of these programs, including 
demand side management initiatives that recover costs associated with the implementation of energy efficiency programs, as 
well  as  normalization  programs  that  adjust  revenues  for  the  effects  of  weather  or  other  external  factors.  Additionally,  we 
maintain certain programs with future test periods that operate similarly to FERC formula rate programs and allow for recovery 
of costs incurred to replace aging infrastructure. When the criteria to recognize alternative revenue have been met, we establish 
a regulatory asset and present revenue from alternative revenue programs on the Statements of Consolidated Income as “Other 
revenues”.  When  amounts  previously  recognized  under  alternative  revenue  accounting  guidance  are  billed,  we  reduce  the 
regulatory asset and record a customer account receivable.

The tables below reconcile revenue disaggregation by customer class to segment revenue, as well as to revenues reflected on 
the Statements of Consolidated Income:

Year Ended December 31, 2023 (in millions)
Customer Revenues(1)

Gas Distribution 
Operations(2)

Electric 
Operations(3)

Corporate and 
Other

Total

$ 

Residential
Commercial
Industrial
Off-system
Wholesale
Public Authority
Miscellaneous(4)

2,462.5  $ 
847.9 
226.0 
60.6 
1.6 
— 
48.2 
3,646.8  $ 
73.6 
3,720.4  $ 

583.9  $ 
578.1 
474.1 
— 
32.0 
11.5 
21.4 
1,701.0  $ 
83.2 
1,784.2  $ 

—  $ 
— 
— 
— 
— 
— 
— 
—  $ 
0.8 
0.8  $ 

3,046.4 
1,426.0 
700.1 
60.6 
33.6 
11.5 
69.6 
5,347.8 
157.6 
5,505.4 

$ 

Total Customer Revenues
Other Revenues
Total Operating Revenues
(1)Customer revenue amounts exclude intersegment revenues. See Note 21, "Business Segment Information," for discussion of intersegment revenues.
(2)Amounts included in Gas Distributions Operations Other revenues primarily related to weather normalization adjustment mechanisms. 
(3)Amounts  included  in  Electric  Operations  Other  revenues  primarily  relate  to  MISO  multi-value  projects  and  revenue  from  non-jurisdictional  transmission 
assets.
(4)Amounts  included  in  Gas  Distributions  are  primarily  related  to  earnings  share  mechanisms  and  late  fees.  Amounts  included  in  Electric  Operations  are 
primarily related to late fees, property rentals, revenue refunds and adjustments.

$ 

Year Ended December 31, 2022 (in millions)
Customer Revenues(1)

Gas Distribution 
Operations(2)

Electric 
Operations(3)

Corporate and 
Other(4)

Total

Residential

Commercial

Industrial
Off-system

Wholesale
Public Authority
Miscellaneous(5)

$ 

2,609.7  $ 

592.4  $ 

—  $ 

939.6 

220.6 
192.9 

2.1 
— 
38.2 

571.0 

560.6 
— 

13.5 
12.1 
(14.1)   

— 

— 
— 

— 
— 
— 

Total Customer Revenues
Other Revenues

Total Operating Revenues

$ 

$ 

4,003.1  $ 
4.1 

4,007.2  $ 

1,735.5  $ 
95.4 

1,830.9  $ 

—  $ 

12.5 

12.5  $ 

3,202.1 

1,510.6 

781.2 
192.9 

15.6 
12.1 
24.1 

5,738.6 
112.0 

5,850.6 

72

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

(1)Customer revenue amounts exclude intersegment revenues. See Note 21, "Business Segment Information," for discussion of intersegment revenues.
(2)Amounts included in Gas Distributions Operations Other revenues primarily related to weather normalization adjustment mechanisms. 
(3)Amounts  included  in  Electric  Operations  Other  revenues  primarily  relate  to  MISO  multi-value  projects  and  revenue  from  non-jurisdictional  transmission 
assets.
(4)Other revenues related to the Transition Services Agreement entered into in connection with the sale of the Massachusetts Business, which was substantially 
completed as of June 30, 2022.
(5)Amounts  included  in  Gas  distributions  are  primarily  related  to  earnings  share  mechanisms  and  late  fees.  Amounts  included  in  Electric  Operations  are 
primarily related to revenue trackers, late fees, and property rentals.

Year Ended December 31, 2021 (in millions)
Customer Revenues(1)

Gas Distribution 
Operations(2)

Electric 
Operations(3)

Corporate and 
Other(4)

Total

$ 

2,109.4  $ 

567.9  $ 

—  $ 

Residential

Commercial

Industrial

Off-system

Wholesale
Public Authority
Miscellaneous(5)

Total Customer Revenues
Other Revenues
Total Operating Revenues

$ 

$ 

722.4 

195.7 

71.3 

1.4 
— 
25.9 
3,126.1  $ 
45.1 
3,171.2  $ 

534.9 

493.4 

— 

15.7 
12.5 
(20.0)   
1,604.4  $ 
91.9 
1,696.3  $ 

— 

— 

— 

— 
— 
0.8 
0.8  $ 
31.3 
32.1  $ 

2,677.3 

1,257.3 

689.1 

71.3 

17.1 
12.5 
6.7 
4,731.3 
168.3 
4,899.6 

(1)Customer revenue amounts exclude intersegment revenues. See Note 21, "Business Segment Information," for discussion of intersegment revenues.
(2)Amounts included in Gas Distributions Operations Other revenues primarily related to weather normalization adjustment mechanisms. 
(3)Amounts  included  in  Electric  Operations  Other  revenues  primarily  relate  to  MISO  multi-value  projects  and  revenue  from  non-jurisdictional  transmission 
assets.
(4)Other revenues related to the Transition Services Agreement entered into in connection with the sale of the Massachusetts Business.
(5)Amounts  included  in  Gas  distributions  are  primarily  related  to  earnings  share  mechanisms  and  late  fees.  Amounts  included  in  Electric  Operations  are 
primarily related to revenue trackers, late fees and property rentals.

Customer  Accounts  Receivable.  Accounts  receivable  on  our  Consolidated  Balance  Sheets  includes  both  billed  and  unbilled 
amounts, as well as certain amounts that are not related to customer revenues. Unbilled amounts of accounts receivable relate to 
a portion of a customer’s consumption of gas or electricity from the date of their last cycle billing through the last day of the 
month  (balance  sheet  date).  Factors  taken  into  consideration  when  estimating  unbilled  revenue  include  historical  usage, 
customer  rates,  and  weather.  A  significant  portion  of  our  operations  are  subject  to  seasonal  fluctuations  in  sales.  During  the 
heating season, primarily from November through March, revenues and receivables from gas sales are more significant than in 
other months. The opening and closing balances of customer receivables for the year ended December 31, 2023, are presented 
in the table below. We had no significant contract assets or liabilities during the period. Additionally, we have not incurred any 
significant costs to obtain or fulfill contracts.

(in millions)

Balance as of December 31, 2022

Balance as of December 31, 2023

Customer Accounts 
Receivable, Billed 
(less reserve)

Customer Accounts 
Receivable, Unbilled 
(less reserve)

$ 

560.5  $ 

479.4 

453.0 

337.6 

Utility revenues are billed to customers monthly on a cycle basis. We expect that substantially all customer accounts receivable 
will be collected following customer billing, as this revenue consists primarily of periodic, tariff-based billings for service and 
usage.  We  maintain  common  utility  credit  risk  mitigation  practices,  including  requiring  deposits  and  actively  pursuing 
collection of past due amounts. Our regulated operations also utilize certain regulatory mechanisms that facilitate recovery of 
bad debt costs within tariff-based rates, which provides further evidence of collectibility. It is probable that substantially all of 
the consideration to which we are entitled from customers will be collected upon satisfaction of performance obligations. 

Allowance for Credit Losses. To evaluate for expected credit losses, customer account receivables are pooled based on similar 
risk characteristics, such as customer type, geography, payment terms, and related macro-economic risks. Expected credit losses 
are  established  using  a  model  that  considers  historical  collections  experience,  current  information,  and  reasonable  and 

73

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

supportable  forecasts.  Internal  and  external  inputs  are  used  in  our  credit  model  including,  but  not  limited  to,  energy 
consumption trends, revenue projections, actual charge-offs data, recoveries data, shut-offs, customer delinquencies, final bill 
data,  and  inflation.  We  continuously  evaluate  available  information  relevant  to  assessing  collectability  of  current  and  future 
receivables. We evaluate creditworthiness of specific customers periodically or following changes in facts and circumstances. 
When  we  become  aware  of  a  specific  commercial  or  industrial  customer's  inability  to  pay,  an  allowance  for  expected  credit 
losses is recorded for the relevant amount. We also monitor other circumstances that could affect our overall expected credit 
losses including, but not limited to, creditworthiness of overall population in service territories, adverse conditions impacting an 
industry sector, and current economic conditions.

At  each  reporting  period,  we  record  expected  credit  losses  to  an  allowance  for  credit  losses  account.  When  deemed  to  be 
uncollectible, customer accounts are written-off. A rollforward of our allowance for credit losses as of December 31, 2023 and 
December 31, 2022, are presented in the tables below:

(in millions)

Gas Distribution 
Operations

Electric 
Operations

Corporate and 
Other

Total

Balance as of January 1, 2023
Current period provisions
Write-offs charged against allowance
Recoveries of amounts previously written off

Balance as of December 31, 2023

$ 

$ 

17.2  $ 
33.8 
(55.4)   
20.4 

16.0  $ 

5.9  $ 
6.0 
(6.2)   
0.4 

6.1  $ 

0.8  $ 
— 
— 
— 

0.8  $ 

23.9 
39.8 
(61.6) 
20.8 

22.9 

(in millions)
Balance as of January 1, 2022
Current period provisions
Write-offs charged against allowance
Recoveries of amounts previously written off

Balance as of December 31, 2022

4. 

Noncontrolling Interest

Gas Distribution 
Operations

Electric 
Operations

Corporate and 
Other

Total

$ 

$ 

18.9  $ 
29.1 
(52.1)   
21.3 

17.2  $ 

3.8  $ 
6.9 
(5.3)   
0.5 

5.9  $ 

0.8  $ 
— 
— 
— 

0.8  $ 

23.5 
36.0 
(57.4) 
21.8 

23.9 

Variable  Interest  Entities.  A  VIE  is  an  entity  in  which  the  controlling  interest  is  determined  through  means  other  than  a 
majority  voting  interest.  Refer  to  Note  1,  "Nature  of  Operations  and  Summary  of  Significant  Accounting  Policies  -  S. 
Noncontrolling Interest," for information on our accounting policy for the VIEs.

NIPSCO owns and operates two wind facilities, Rosewater and Indiana Crossroads Wind, which have 102 MW and 302 MW of 
nameplate capacity, respectively. NIPSCO also owns two solar facilities, Indiana Crossroads Solar and Dunns Bridge I, which 
went into service in June 2023, with a combined 465 MW of nameplate capacity. During August 2023, NIPSCO and the tax 
equity  partners  made  final  cash  contributions  in  accordance  with  the  equity  capital  contribution  agreement.  In  August  2023, 
Indiana  Crossroads  Solar  and  Dunns  Bridge  I  reached  substantial  completion,  resulting  in  NIPSCO  making  a  combined 
$307.2  million  in  developer  payments.  We  control  decisions  that  are  significant  to  these  entities'  ongoing  operations  and 
economic results. Therefore, we have concluded that NIPSCO is the primary beneficiary and have consolidated all four entities. 

Members  of  each  respective  JV  include  NIPSCO  (who  is  the  managing  member)  and  a  tax  equity  partner.  Earnings,  tax 
attributes and cash flows are allocated to both NIPSCO and the tax equity partner in varying percentages by category and over 
the life of the partnership. Since 2021, NIPSCO and the tax equity partner have contributed $401.5 million and $507.2 million, 
respectively.  For  the  two  wind  facilities,  NIPSCO  assumed  an  obligation  to  the  developers  of  each  facility,  representing  the 
remaining economic interest. NIPSCO resolved this obligation by acquiring the developers' economic interests in June 2023 for 
$389.2 million which includes the December 31, 2022 obligation of $347.2 million and interest of $42.0 million. Once the tax 
equity partner has earned their negotiated rate of return and have reached a stated contractual date, NIPSCO has the option to 
purchase the remaining interest in the respective JV, at fair market value from the tax equity partner. NIPSCO has an obligation 
to purchase 100% of the electricity generated by our in service JVs.

74

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

We  did  not  provide  any  financial  or  other  support  during  the  year  that  was  not  previously  contractually  required,  nor  do  we 
expect to provide such support in the future.

Our Consolidated Balance Sheets included the following assets and liabilities associated with VIEs.

(in millions)

Net Property, Plant and Equipment

Current assets

Total assets(1)

Current liabilities

Asset retirement obligations

December 31,
2023

December 31,
2022

$ 

1,369.8  $ 

63.6 

1,433.4 

68.3 

55.7 

978.5 

25.7 

1,004.2 

128.2 

30.6 

158.8 
Total liabilities
(1)The assets of each VIE represent assets of a consolidated VIE that can be used only to settle obligations of the respective consolidated VIE. The creditors of 
the liabilities of the VIEs do not have recourse to the general credit of the primary beneficiary.

124.0  $ 

$ 

Voting Interest Entities. On June 17, 2023, NiSource and its wholly-owned subsidiary, NIPSCO Holdings II, entered into the 
BIP  Purchase  Agreement.  NIPSCO  Holdings  II  is  the  100%  owner  of  all  issued  and  outstanding  membership  interests  of 
NIPSCO. Under the terms of the BIP Purchase Agreement, we agreed to issue a 19.9% equity interest in NIPSCO Holdings II 
to BIP, an affiliate of Blackstone, in exchange for a cash contribution of $2.15 billion at closing, subject to adjustment based on 
the timing of closing and the amount of NiSource capital contributions made prior to closing.

The closing of the NIPSCO Minority Equity Interest Transaction was subject to the satisfaction of certain customary closing 
conditions described in the Blackstone Purchase Agreement, including receipt of authorization by FERC. FERC approval was 
received on October 19, 2023.

On December 31, 2023, we consummated the issuance of a 19.9% indirect equity interest in NIPSCO to BIP in exchange for a 
capital  contribution  of  $2.16  billion  in  cash.  The  difference  between  the  $2.16  billion  consideration  received  and  the 
$1.36 billion carrying value of the noncontrolling interest claim on net assets was recorded to additional paid-in capital, net of 
$54.7 million in transaction costs and a $63.5 million income tax benefit. Approximately $47.6 million of the transaction costs 
remain  unpaid  at  December  31,  2023.  No  gain  or  loss  was  recognized  by  the  parties  in  connection  with  the  contributions  of 
property  in  exchange  for  membership  interests  in  NIPSCO  Holdings  II.  Upon  consummation  of  the  minority  interest 
transaction,  NiSource  owns  an  80.1%  controlling  indirect  equity  interest  in  NIPSCO  while  BIP,  owns  the  remaining  19.9% 
indirect equity interest. See Note 19, "Other Commitments and Contingencies - E. Other Matters," for a detailed discussion of 
the NIPSCO Holdings II LLC Agreement and governance structure. 

75

 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

5. 

Earnings Per Share

The calculations of basic and diluted EPS are based on the weighted average number of shares of common stock and potential 
common stock outstanding during the period. For the purposes of determining diluted EPS, the shares underlying the purchase 
contracts included within the Equity Units were included in the calculation of potential common stock outstanding for the years 
ended December 31, 2023, 2022 and 2021 using the if-converted method under US GAAP. This method assumes conversion at 
the beginning of the reporting period, or at time of issuance, if later. The purchase contracts were settled on December 1, 2023. 
For  the  purchase  contracts,  the  number  of  shares  of  our  common  stock  that  would  have  been  issuable  at  the  end  of  each 
reporting  period  prior  to  the  settlement  date  were  reflected  in  the  denominator  of  our  diluted  EPS  calculation.  A  numerator 
adjustment  was  reflected  in  the  calculation  of  diluted  EPS  for  interest  expense  incurred  in  2023,  2022  and  2021,  net  of  tax, 
related to the purchase contracts.

We adopted ASU 2020-06 on January 1, 2022, which required us to assume share settlement of the remaining purchase contract 
payment balance from our Equity Units based on the average share price during the period.

The shares underlying the Series C Mandatory Convertible Preferred Stock included within the Equity Units were contingently 
convertible  as  the  conversion  was  contingent  on  a  successful  remarketing  as  described  in  Note  6,  "Equity."  Contingently 
convertible shares where conversion was not tied to a market price trigger were excluded from the calculation of diluted EPS 
until  such  time  as  the  contingency  had  been  resolved  under  the  if-converted  method.  As  described  in  Note  6,  "Equity.",  the 
unsuccessful  remarketing  resolved  the  contingency  and  no  shares  were  reflected  in  the  denominator  for  the  years  ended 
December 31, 2023, 2022 and 2021, for the calculation of diluted EPS.

Diluted  EPS  also  includes  the  incremental  effects  of  our  various  long-term  incentive  compensation  plans  and  open  ATM 
forward agreements during the period under the treasury stock method when the impact would be dilutive.

We began using the two-class method of computing earnings per share in 2023 because we have participating securities in the 
form of non-vested restricted stock units with a non-forfeitable right to dividend equivalents, for which vesting is predicated 
solely on the passage of time. The calculation of earnings per share using the two-class method excludes income attributable to 
these participating securities from the numerator and excludes the dilutive impact of those shares from the denominator.

During 2022, we had no outstanding securities other than common and preferred stock, which required holders’ participation in 
dividends  and  earnings;  therefore,  we  were  not  required  to  calculate  EPS  under  the  two-class  method.  Basic  net  income  per 
share  is  computed  by  dividing  net  income  available  to  common  shareholders  by  the  weighted-average  number  of  shares  of 
common stock outstanding during the period. Diluted net income per share is computed by giving effect to all potential shares 
of common stock, to the extent they are dilutive.

76

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

The following table presents the calculation of our basic and diluted EPS:

Year Ended December 31, (in millions, except per share amounts)
Numerator:
Net Income Available to Common Shareholders 
   Less: Income allocated to participating securities
Net Income Available to Common Shareholders - Basic
  Add: Dilutive effect of Equity Units
Net Income Available to Common Shareholders - Diluted
Denominator:
Average common shares outstanding - Basic

Dilutive potential common shares:
Equity Units purchase contracts
Equity Units purchase contract payment balance
Shares contingently issuable under employee stock plans
Shares restricted under employee stock plans
ATM Forward agreements

Average Common Shares - Diluted
Earnings per common share:

Basic
Diluted

6.  

Equity

2023

2022

2021

$ 

$ 

$ 

661.7  $ 
0.6 
661.1  $ 
1.4 
662.5  $ 

749.0  $ 
— 
749.0  $ 
2.0 
751.0  $ 

529.8 
— 
529.8 
1.6 
531.4 

416.1 

407.1 

393.6 

29.8 
0.9 
0.7 
0.4 
— 
447.9 

30.2 
3.2 
0.9 
0.5 
0.8 
442.7 

$ 
$ 

1.59  $ 
1.48  $ 

1.84  $ 
1.70  $ 

22.0 
— 
0.8 
0.3 
0.6 
417.3 

1.35 
1.27 

Holders of shares of our common stock are entitled to receive dividends when, as, and if declared by the Board out of funds 
legally available. The policy of the Board has been to declare cash dividends on a quarterly basis payable on or about the 20th 
day  of  February,  May,  August  and  November.  We  have  certain  debt  covenants  that  could  potentially  limit  the  amount  of 
dividends we could pay in order to maintain compliance with these covenants. Refer to Note 8, "Long-Term Debt," for more 
information. As of December 31, 2023, these covenants did not restrict the amount of dividends that were available to be paid. 

Dividends paid to preferred shareholders vary based on the series of preferred stock owned. Holders of our shares of common 
stock  are  subject  to  the  prior  dividend  rights  of  holders  of  our  preferred  stock  or  the  depositary  shares  representing  such 
preferred stock outstanding, and if full dividends have not been declared and paid on all outstanding shares of preferred stock in 
any dividend period, no dividend may be declared or paid or set aside for payment on our common stock.

Common and preferred stock activity for 2023, 2022 and 2021 is described further below.

ATM Program. On February 22, 2021, we entered into six separate equity distribution agreements pursuant to which we were 
able  to  sell  up  to  an  aggregate  of  $750.0  million  of  our  common  stock.  On  December  31,  2023  the  ATM  program  and  the 
associated equity distribution agreements expired.

The following table summarizes our activity under the ATM program.

Year Ending December 31, 
Number of shares issued

Average price per share
Proceeds, net of fees (in millions)

2023

2022

$ 
$ 

— 

—  $ 
—  $ 

5,941,598 

25.25 
141.9 

77

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

Preferred Stock. The following table summarizes preferred stock by outstanding series of shares:

Year ended December 31,

December 31, December 31,

2023

2022

2021

2023

2022

(in millions except shares 
and per share amounts)

Liquidation 

Preference Per Share Shares

Dividends Declared Per Share(2)

Outstanding

5.650% Series A

$ 

1,000.00   

—  $ 

28.25  $ 

56.50  $ 

56.50  $ 

—  $ 

393.9 

25,000.00    20,000    1,625.00    1,625.00    1,625.00   

6.500% Series B
Series C(1)
(1) The Series C Mandatory Convertible Preferred Stock did not bear any dividends. We recorded the initial present value of the purchase contract payments as a 
liability with a corresponding reduction to preferred stock.
(2) Dividends declared per share for the twelve months ended December 31, 2023 reflects the dividend declared on the Series A Preferred Stock on March 14, 
2023. The dividend was paid on June 15, 2023.  

1,000.00   

—  $ 

486.1 

486.1 

666.5 

—  $ 

—   

—   

—   

$ 

Series A Preferred Stock. On June 11, 2018, we completed the sale of 400,000 shares of 5.650% Series A Fixed-Rate Reset 
Cumulative  Redeemable  Perpetual  Preferred  Stock  (the  "Series  A  Preferred  Stock")  at  a  price  of  $1,000  per  share.  The 
transaction resulted in $400.0 million of gross proceeds or $393.9 million of net proceeds, after deducting commissions and sale 
expenses.  Dividends  on  the  Series  A  Preferred  Stock  accrued  and  were  cumulative  from  the  date  the  shares  of  Series  A 
Preferred  Stock  were  originally  issued  to,  but  not  including,  June  15,  2023  at  a  rate  of  5.650%  per  annum  of  the  $1,000 
liquidation preference per share. As of December 31, 2022, Series A Preferred Stock had $1.0 million of cumulative preferred 
dividends in arrears, or $2.51 per share. 

On June 15, 2023, we redeemed all 400,000 outstanding shares of Series A Preferred Stock for a redemption price of $1,000 per 
share  or  $400.0  million  in  total.  Following  the  redemption,  dividends  ceased  to  accrue  on  such  shares  of  Series  A  Preferred 
Stock, and the shares of Series A Preferred Stock are no longer deemed outstanding and all rights of the holders of the shares of 
Series  A  Preferred  Stock  were  terminated.  In  conjunction  with  the  redemption,  we  recorded  a  9.8  million  preferred  stock 
redemption premium, calculated as the difference between the carrying value on the redemption date of the Series A Preferred 
Stock  and  the  total  amount  of  consideration  paid  to  redeem,  which  was  recorded  as  a  reduction  to  retained  earnings  during 
2023. The preferred stock redemption premium included the recognition of an excise tax liability under the IRA of $3.6 million. 
This liability is net of the fair value of common shares issued during 2023.

In June 2023, we filed a certificate of elimination to our Amended and Restated Certificate of Incorporation with the Secretary 
of  State  of  Delaware  to  eliminate  from  the  Amended  and  Restated  Certificate  of  Incorporation  all  matters  set  forth  in  the 
Certificate of Designations with respect to the Series A Preferred Stock. As a result, the 400,000 shares that were previously 
designated  as  Series  A  Preferred  Stock  were  returned  to  the  status  of  authorized  but  unissued  shares  of  preferred  stock,  par 
value  $0.01  per  share,  without  designation  as  to  series.  The  certificate  of  elimination  does  not  change  the  total  number  of 
authorized shares of capital stock of NiSource or the total number of authorized shares of preferred stock.

Series  B  Preferred  Stock.  On  December  5,  2018,  we  completed  the  sale  of  20,000,000  depositary  shares  with  an  aggregate 
liquidation  preference  of  $500,000,000  under  the  Company’s  registration  statement  on  Form  S-3.  Each  depositary  share 
represents 1/1,000th ownership interest in a share of our 6.500% Series B Fixed-Rate Reset Cumulative Redeemable Perpetual 
Preferred  Stock,  liquidation  preference  $25,000  per  share  (equivalent  to  $25  per  depositary  share)  (the  “Series  B  Preferred 
Stock").  The  transaction  resulted  in  $500.0  million  of  gross  proceeds  or  $486.1  million  of  net  proceeds,  after  deducting 
commissions and sale expenses.  

Dividends on the Series B Preferred Stock accrue and are cumulative from the date the shares of Series B Preferred Stock were 
originally issued to, but not including, March 15, 2024 at a rate of 6.500% per annum of the $25,000 liquidation preference per 
share. On and after March 15, 2024, dividends on the Series B Preferred Stock will accumulate for each five year period at a 
percentage of the $25,000 liquidation preference equal to the five-year U.S. Treasury Rate plus (i) in respect of each five year 
period  commencing  on  or  after  March  15,  2024  but  before  March  15,  2044,  a  spread  of  3.632%  (the  “Initial  Margin”),  and 
(ii) in respect of each five year period commencing on or after March 15, 2044, the Initial Margin plus 1.000%. The Series B 
Preferred  Stock  may  be  redeemed  by  us  at  our  option  on  March  15,  2024,  or  on  each  date  falling  on  the  fifth  anniversary 
thereafter, or in connection with a ratings event (as defined in the Certificate of Designation of the Series B Preferred Stock).

As of December 31, 2023 and 2022, Series B Preferred Stock had $1.4 million of cumulative preferred dividends in arrears, or 
$72.23 per share.

78

 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

In addition, 20,000 shares of Series B–1 Preferred Stock, par value $0.01 per share, were outstanding as of December 31, 2023. 
Holders of Series B–1 Preferred Stock are not entitled to receive dividend payments and have no conversion rights. The Series 
B–1 Preferred Stock is paired with the Series B Preferred Stock and may not be transferred, redeemed or repurchased except in 
connection with the simultaneous transfer, redemption or repurchase of the underlying Series B Preferred Stock.

Holders of Series B Preferred Stock generally have no voting rights, except for limited voting rights with respect to (i) potential 
amendments  to  our  certificate  of  incorporation  that  would  have  a  material  adverse  effect  on  the  existing  preferences,  rights, 
powers or duties of the Series B Preferred Stock, (ii) the creation or issuance of any security ranking on a parity with the Series 
B Preferred Stock if the cumulative dividends payable on then outstanding Series B Preferred Stock are in arrears, or (iii) the 
creation or issuance of any security ranking senior to the Series B Preferred Stock. In addition, if and whenever dividends on 
any shares of Series B Preferred Stock shall not have been declared and paid for at least six dividend periods, whether or not 
consecutive, the number of directors then constituting our Board of Directors shall automatically be increased by two until all 
accumulated and unpaid dividends on the Series B Preferred Stock shall have been paid in full, and the holders of Series B-1 
Preferred Stock, voting as a class together with the holders of any outstanding securities ranking on a parity with the Series B-1 
Preferred Stock and having like voting rights that are exercisable at the time and entitled to vote thereon, shall be entitled to 
elect the two additional directors. The Series B Preferred Stock does not have a stated maturity and is not subject to mandatory 
redemption  or  any  sinking  fund.  The  Series  B  Preferred  Stock  will  remain  outstanding  indefinitely  unless  repurchased  or 
redeemed  by  us.  Any  such  redemption  would  be  effected  only  out  of  funds  legally  available  for  such  purposes  and  will  be 
subject to compliance with the provisions of our outstanding indebtedness.

On February 9, 2024, we announced that we will redeem all outstanding shares of our Series B Preferred Stock and Series B-1 
Preferred  Stock  and  the  corresponding  depositary  shares  representing  interests  in  the  outstanding  shares  of  the  Series  B 
Preferred and Series B-1 Preferred Stock on March 15, 2024 for a redemption price of $25.00 per depositary share. On and after 
the redemption date, dividends on the redeemed Series B Preferred Stock and the corresponding depositary shares will cease to 
accumulate.

Equity Units. On April 19, 2021, we completed the sale of 8.625 million Equity Units, initially consisting of Corporate Units, 
each  with  a  stated  amount  of  $100.  The  offering  generated  net  proceeds  of  $835.5  million,  after  underwriting  and  issuance 
expenses.  Each  Corporate  Unit  consisted  of  a  forward  contract  to  purchase  shares  of  our  common  stock  in  the  future  and  a 
1/10th, or 10%, undivided beneficial ownership interest in one share of Series C Mandatory Convertible Preferred Stock, par 
value $0.01 per share, with a liquidation preference of $1,000 per share. The Series C Mandatory Convertible Preferred Stock 
was  pledged  upon  issuance  as  collateral  to  secure  the  purchase  of  common  stock  under  the  related  purchase  contracts.  The 
Series C Mandatory Convertible Preferred Stock did not bear any dividends and the liquidation preference did not accrete. 

Selected information about the Equity Units is presented below:

(in millions except contract rate)

Issuance Date Units Issued

Total Net 
Proceeds(1)

Purchase 
Contract 
Annual Rate

Purchase 
Contract 
Liability

168.8 
Equity Units
(1)Issuance costs of $27.0 million were recorded on a relative fair value basis as a reduction to preferred stock of $22.5 million and a reduction to the purchase 
contract liability of $4.5 million.

April 19, 2021

 7.75 % $ 

8.625 $ 

835.5 

Pursuant to the Purchase Contract and Pledge Agreement, we were required to attempt a remarketing of the Series C Mandatory 
Convertible  Preferred  Stock  prior  to  December  1,  2023.  On  November  17,  2023,  we  announced  the  unsuccessful  final 
remarketing of our Series C Mandatory Convertible Preferred Stock. On December 1, 2023, we issued 33,898,837 shares of our 
common stock under the purchase contract component of the Corporate Units based upon the per-share daily volume weighted 
average  of  our  common  stock  over  a  consecutive  40-day  trading  period  ending  on  November  29,  2023.  As  of  December  1, 
2023,  each  holder  of  Corporate  Units  was  deemed  to  have  automatically  delivered  to  us  the  related  Series  C  Mandatory 
Convertible Preferred Stock that were components of the Corporate Units in full satisfaction of such holder’s obligations under 
the related purchase contract, and all shares of Series C Mandatory Convertible Preferred Stock were returned to the status of 
authorized but unissued preferred stock, par value of $0.01 per share, without designation as to series. We voluntarily delisted 
the Corporate Units from the New York Stock Exchange.

79

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

We paid quarterly contract adjustment payments at the rate of 7.75% per year on the stated amount of $100 per Equity Unit. As 
of  December  31,  2023  and  December  31,  2022  the  purchase  contract  liability  was  zero  and  $65.0  million,  respectively. 
Purchase  contract  payments  were  recorded  against  this  liability.  Accretion  of  the  purchase  contract  liability  was  recorded  as 
interest expense. Cash payments of $66.8 million were made during the years ended December 31, 2023 and 2022. 

We accounted for the Corporate Units as a single unit of account and recorded the initial present value of the purchase contract 
payments as a liability with a corresponding reduction to preferred stock. As of December 31, 2023, the balance of the Series C 
Mandatory Convertible Preferred Stock was $0.0 million and during the fourth quarter of 2023 we recorded the settlement of 
the forward purchase contract as an increase to common stock and additional paid-in capital.

Refer to Note 5, "Earnings Per Share," for additional information regarding our treatment of the Equity Units for diluted EPS. 

Noncontrolling Interest in Consolidated Subsidiaries. As of December 31, 2023 and 2022, NIPSCO and tax equity partners 
have completed their cash contributions into Indiana Crossroads Wind, Rosewater, Indiana Crossroads Solar and Dunns Bridge 
I JVs. Earnings, tax attributes and cash flows are allocated to both NIPSCO and the respective tax equity partners in varying 
percentages by category and over the life of the partnership. The tax equity partner's contributions, net of these allocations, is 
represented  as  a  noncontrolling  interest  within  total  equity  on  the  Consolidated  Balance  Sheets.  Refer  to  Note  4, 
"Noncontrolling Interest," for more information.

On December 31, 2023, we consummated the closing of the NIPSCO Minority Interest Transaction and issued a 19.9% equity 
interest in NIPSCO Holdings II LLC to BIP in exchange for a capital contribution of $2.16 billion in cash. Transaction costs 
and deferred tax impacts of $54.7 million and $63.5 million were recorded during the period ending December 31, 2023. Refer 
to  Note  15,  "Income  Taxes,"  and  Note  19,  "Other  Commitments  and  Contingencies  -  E.  Other  Matters,"  in  the  Notes  to  the 
Consolidated Financial Statements for more information on this transaction.

7.  

Short-Term Borrowings

We generate short-term borrowings from our revolving credit facility, commercial paper program, accounts receivable transfer 
programs, and term credit agreements. Each of these borrowing sources is described further below.

Revolving Credit Facility. We maintain a revolving credit facility to fund ongoing working capital requirements, including the 
provision of liquidity support for our commercial paper program, provide for issuance of letters of credit, and also for general 
corporate purposes. Our revolving credit facility has a program limit of $1.85 billion and is comprised of a syndicate of banks. 
At December 31, 2023 and 2022, we had no outstanding borrowings under this facility. 

Commercial Paper Program. At December 31, 2023, our commercial paper program had a program limit of up to $1.5 billion. 
On  February  9,  2024,  we  increased  the  program  limit  to  $1.85  billion.  We  had  $1,061.0  million  and  $415.0  million  of 
commercial paper outstanding with weighted-average interest rates of 5.65% and 4.60% as of December 31, 2023 and 2022, 
respectively.

Accounts  Receivable  Transfer  Programs.  Columbia  of  Ohio,  NIPSCO,  and  Columbia  of  Pennsylvania  each  maintain  a 
receivables  agreement  whereby  they  transfer  their  customer  accounts  receivables  to  third  party  financial  institutions  through 
consolidated special purpose entities. The three agreements expire between May 2024 and October 2024 and may be further 
extended if mutually agreed to by the parties thereto.

All receivables transferred to third parties are valued at face value, which approximates fair value due to their short-term nature. 
The  amount  of  the  undivided  percentage  ownership  interest  in  the  accounts  receivables  transferred  is  determined  in  part  by 
required loss reserves under the agreements. 

Transfers of accounts receivable are accounted for as secured borrowings resulting in the recognition of short-term borrowings 
on the Consolidated Balance Sheets. As of December 31, 2023, the maximum amount of debt that could be recognized related 
to our accounts receivable programs is $383.9 million.

We had $337.6 million and $347.2 million short-term borrowings related to the securitization transactions as of December 31, 
2023 and 2022, respectively. 

For  the  year  ended  December  31,  2023,  $9.6  million  was  recorded  as  cash  flows  used  for  financing  activities  related  to  the 
change in short-term borrowings due to securitization transactions. For the year ended December 31, 2022, $347.2 million was 
recorded  as  cash  flows  from  financing  activities  related  to  the  change  in  short-term  borrowings  due  to  securitization 

80

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

transactions.  For  the  accounts  receivable  transfer  programs,  we  pay  used  facility  fees  for  amounts  borrowed,  unused 
commitment  fees  for  amounts  not  borrowed,  and  upfront  renewal  fees.  Fees  associated  with  the  securitization  transactions 
were  $2.7  million,  $2.5  million,  and  $1.4  million  for  the  years  ended  December  31,  2023,  2022  and  2021,  respectively. 
Columbia of Ohio, NIPSCO and Columbia of Pennsylvania remain responsible for collecting on the receivables securitized, and 
the receivables cannot be transferred to another party. Refer to Note 23, "Interest Expense, Net," for additional information on 
securitization transaction fees. 

Term  Credit  Agreements.  On  December  20,  2022,  we  entered  into  a  $1.0  billion  term  credit  agreement  with  a  syndicate  of 
banks.  On  October  5,  2023,  we  entered  into  an  amendment  with  the  syndicate  of  banks  to,  among  other  things,  extend  the 
maturity date of the agreement from December 19, 2023 to March 15, 2024. With the amendment, we triggered extinguishment 
accounting  and  recorded  an  immaterial  loss  on  extinguishment  of  debt  in  the  fourth  quarter  of  2023.  Interest  charged  on  the 
borrowings depended on the variable rate structure elected at the time of each borrowing. The available variable rate structures 
from which we could choose were defined in the agreement. Under the agreement, we borrowed $1.0 billion on December 20, 
2022 with an interest rate of SOFR plus 105 basis points. We had $1.0 billion outstanding under this agreement with interest 
rates of 6.41% and 5.37% as of December 31, 2023 and 2022, respectively.

On November 9, 2023, we entered into a $250.0 million term credit agreement with a bank. The agreement had a maturity date 
of November 7, 2024 and interest charged on the borrowings depended on the variable rate structure elected at the time of each 
borrowing. The available variable rate structures from which we could choose were defined in the agreement. On December 6, 
2023, we entered into an augmenting lender supplement to the agreement with a syndicate of banks for an additional $400.0 
million.  Under  the  agreement,  we  borrowed  $250.0  million  on  November  9,  2023  and  $400.0  million  on  December  6,  2023 
with an interest rate of SOFR plus 115 basis points. We had $650.0 million outstanding under this agreement with an interest 
rate of 6.50% as of December 31, 2023.

On January 3, 2024, we terminated and repaid in full our $1.0 billion term credit agreement and our $650.0 million term credit 
agreement.  

Items listed above, excluding the term credit agreements, are presented net in the Statements of Consolidated Cash Flows as 
their maturities are less than 90 days.

81

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

8.  

Long-Term Debt

Our long-term debt as of December 31, 2023 and 2022 is as follows:

Long-term debt type 
Senior notes: 
NiSource
NiSource
NiSource
NiSource
NiSource
NiSource
NiSource
NiSource
NiSource
NiSource
NiSource
NiSource
NiSource
NiSource
NiSource
NiSource
NiSource
Total senior notes
Medium term notes:

NiSource
NIPSCO
Columbia of Massachusetts

Total medium term notes
Finance leases:

NiSource Corporate Services
NIPSCO
Columbia of Ohio
Columbia of Virginia
Columbia of Kentucky
Columbia of Pennsylvania

Total finance leases

Unamortized issuance costs and discounts

Total Long-Term Debt

Maturity as of December 31,  2023

Weighted 
average 
interest rate 
(%)

Outstanding balance 
as of December 31, 
(in millions)

2023

2022

August 2025
May 2027
December 2027
March 2028
September 2029
May 2030
February 2031
June 2033
December 2040
June 2041
February 2042
February 2043
February 2044
February 2045
May 2047
March 2048
June 2052

May 2027
June 2027 to August 2027
December 2025 to February 2028

February 2024 to September 2027
December 2027 to November 2035
December 2025 to March 2044
July 2029 to November 2039
May 2027
July 2027 to May 2035

 0.95 %
 3.49 %
 6.78 %
 5.25 %
 2.95 %
 3.60 %
 1.70 %
 5.40 %
 6.25 %
 5.95 %
 5.80 %
 5.25 %
 4.80 %
 5.65 %
 4.38 %
 3.95 %
 5.00 %

 7.99 %
 7.64 %
 6.37 %

 2.89 %
 4.77 %
 6.16 %
 6.23 %
 3.79 %
 4.49 %

$ 1,250.0  $ 1,250.0 
  1,000.0 
  1,000.0 
3.0 
3.0 
— 
1,050.0
750.0 
750.0 
  1,000.0 
  1,000.0 
750.0 
750.0 
— 
450.0
152.6 
152.6 
347.4 
347.4 
250.0 
250.0 
500.0 
500.0 
750.0 
750.0 
500.0 
500.0 
  1,000.0 
  1,000.0 
750.0 
750.0 
350.0 
350.0 
$ 10,853.0  $ 9,353.0 

$ 

29.0  $ 
58.0 
15.0 

29.0 
58.0 
15.0 
$  102.0  $  102.0 

$ 

30.5  $ 
61.2 
90.3 
16.1 
0.2 
7.1 

48.6 
16.5 
83.5 
17.0 
0.2 
8.9 
$  205.4  $  174.7 

$ 

(81.1)  $ 

(76.1) 

$ 11,079.3  $ 9,553.6 

Details of our 2023 long-term debt related activity are summarized below:

•

•

On March 24, 2023, we completed the issuance sale of $750.0 million of 5.25% senior unsecured notes maturing in 
2028, which resulted in approximately $742.2 million of net proceeds after discount and debt issuance costs.

On June 8, 2023, we completed the issuance and sale of $300.0 million of 5.25% senior unsecured notes maturing in 
2028  (the  "2028  Notes").  The  terms  of  the  2028  Notes,  other  than  the  issue  date  and  the  price  to  the  public,  are 
identical  to  the  terms  of,  and  constitute  as  a  reopening  of,  our  5.25%  senior  unsecured  notes  due  2028  issued  on 
March 24, 2023. With the incremental issuance, we now have $1.05 billion of 5.25% senior unsecured notes maturing 
in 2028. On June 8, 2023, we also completed the issuance and sale of $450.0 million of 5.40% senior unsecured notes 
maturing in 2033. These issuances resulted in approximately $742.5 million of total net proceeds after discount and 
debt issuance costs.

82

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

Details of our 2022 long-term debt related activity are summarized below:

•

•

•

On April, 2022, we repaid $20.0 million of 7.99% medium term notes at maturity.

On June 10, 2022, we completed the issuance and sale of $350.0 million of 5.00% senior unsecured notes maturing in 
2052, which resulted in approximately $344.6 million of net proceeds after discount and debt issuance costs.

On August 30, 2022, NIPSCO repaid $10.0 million of 7.40% medium term notes at maturity.

See  Note  19,  "Other  Commitments  and  Contingencies  -  A.  Contractual  Obligations,"  for  the  outstanding  long-term  debt 
maturities at December 31, 2023. 

Unamortized debt expense, premium and discount on long-term debt applicable to outstanding bonds are being amortized over 
the life of such bonds.  

We are subject to a financial covenant under our revolving credit facility which requires us to maintain a debt to capitalization 
ratio that does not exceed 70%. As of December 31, 2023, the ratio was 58.2%.

We  are  also  subject  to  certain  other  non-financial  covenants  under  the  revolving  credit  facility.  Such  covenants  include  a 
limitation on the creation or existence of new liens on our assets, generally exempting liens on utility assets, purchase money 
security interests, preexisting security interests and an additional subset of assets equal to $200 million. An asset sale covenant 
generally restricts the sale, conveyance, lease, transfer or other disposition of our assets to those dispositions that are for a price 
not materially less than fair market of such assets, that would not materially impair our ability to perform obligations under the 
revolving  credit  facility,  and  that  together  with  all  other  such  dispositions,  would  not  have  a  material  adverse  effect.  The 
covenant also restricts dispositions to no more than 15% of our consolidated total assets on December 31, 2022. Additionally, 
the revolving credit facility requires us to own directly or indirectly at least 70% of NIPSCO. The revolving credit facility also 
includes  a  cross-default  provision,  which  triggers  an  event  of  default  under  the  credit  facility  in  the  event  of  an  uncured 
payment default relating to any indebtedness of us or any of our subsidiaries in a principal amount of $75.0 million or more.

Our indentures generally do not contain any financial maintenance covenants. However, our indentures are generally subject to 
cross-default provisions ranging from uncured payment defaults of $5 million to $50 million, and limitations on the incurrence 
of  liens  on  our  assets,  generally  exempting  liens  on  utility  assets,  purchase  money  security  interests,  preexisting  security 
interests and an additional subset of assets capped at 10% of our consolidated net tangible assets.

83

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

9.

Property, Plant and Equipment

Our property, plant and equipment on the Consolidated Balance Sheets are classified as follows: 

At December 31, (in millions)
Property, Plant and Equipment

Gas Distribution Utility

Electric Utility
Corporate

Construction Work in Process

Renewable Generation Assets(1)

Non-Utility and Other

Total Property, Plant and Equipment
Accumulated Depreciation and Amortization

2023

2022

$ 

18,154.5  $ 

16,576.4 

7,907.9 
274.2 

1,261.1 

1,434.4 

1,450.0 

7,162.4 
271.7 

1,398.2 

702.2 

1,440.4 

$ 

30,482.1  $ 

27,551.3 

Gas Distribution Utility
Electric Utility
Corporate
Renewable Generation Assets(1)
Non-Utility and Other

(3,678.1) 
(2,557.4) 
(160.0) 
(29.7) 
(1,283.5) 
(7,708.7) 
19,842.6 
(1)Our  renewable  generation  assets  are  part  of  our  electric  segment  and  represent  Non-Utility  Property,  owned  and  operated  by  JVs  between  NIPSCO  and 
unrelated tax equity partners, and depreciated straight-line over 30 years. Refer to Note 4, "Noncontrolling Interest," for additional information.

(3,924.4)  $ 
(2,709.5)   
(174.2)   
(64.5)   
(1,334.6)   
(8,207.2)  $ 
22,274.9  $ 

Total Accumulated Depreciation and Amortization
Net Property, Plant and Equipment

$ 
$ 

$ 

The  weighted  average  depreciation  provisions  for  utility  plant,  as  a  percentage  of  the  original  cost,  for  the  periods  ended 
December 31, 2023, 2022 and 2021 were as follows:

Electric Operations
Gas Distribution Operations

2023

2022

2021

 3.5 %
 2.4 %

 3.1 %
 2.3 %

 3.4 %
 2.2 %

We recognized depreciation expense of $756.9 million, $685.0 million and $672.1 million for the years ended 2023, 2022 and 
2021,  respectively.  The  2023,  2022  and  2021,  depreciation  expense  includes  $12.5  million,  $11.0  million,  and  $5.3  million 
related to the regulatory deferral of income associated with our JVs, which is not included in current rates. See Note 1, "Nature 
of Operations and Summary of Significant Accounting Policies - S. Noncontrolling Interest,"  for additional details.

Amortization of on-premise Software Costs. We amortized $77.5 million, $53.1 million and $49.4 million in 2023, 2022 and 
2021, respectively, related to software recorded as intangible assets. Our unamortized software balance was $205.6 million and 
$190.1 million at December 31, 2023 and 2022, respectively.

Amortization  of  Cloud  Computing  Costs.  We  amortized  $12.6  million,  $11.1  million  and  $10.0  million  in  2023,  2022  and 
2021,  respectively,  related  to  cloud  computing  costs  to  "Operation  and  maintenance"  expense.  Our  unamortized  cloud 
computing balance was $32.2 million and $45.7 million at December 31, 2023 and 2022, respectively. 

84

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

10. 

Goodwill

Substantially  all  of  our  goodwill  relates  to  the  excess  of  cost  over  the  fair  value  of  the  net  assets  acquired  in  the  Columbia 
acquisition on November 1, 2000. Our goodwill balance was $1,485.9 million as of December 31, 2023 and 2022. All of our 
goodwill has been allocated to the Gas Distribution Operations segment.

For our annual goodwill impairment analysis performed as of May 1, 2023, we completed a qualitative "step 0" assessment and 
determined that it was more likely than not that the estimated fair value of the reporting unit substantially exceeded the related 
carrying value of our reporting unit. For this test, we assessed various assumptions, events and circumstances that would have 
affected the estimated fair value of the reporting units as compared to the baseline "step 1" fair value measurement performed 
May 1, 2020. 

11. 

Asset Retirement Obligations

We  have  recognized  asset  retirement  obligations  associated  with  various  legal  obligations  including  costs  to  remove  and 
dispose of certain construction materials located within many of our facilities (including our JV facilities), certain costs to retire 
pipeline,  removal  costs  for  certain  underground  storage  tanks,  removal  of  certain  pipelines  known  to  contain  PCB 
contamination, closure costs for certain sites including ash ponds, solid waste management units and a landfill, as well as some 
other nominal asset retirement obligations. We also have an obligation associated with the decommissioning of our two hydro 
facilities located in Indiana. These hydro facilities have an indeterminate life, and as such, no asset retirement obligation has 
been recorded.

Changes in our liability for asset retirement obligations for the years 2023 and 2022 are presented in the table below:

(in millions)
Beginning Balance

Accretion recorded as a regulatory asset/liability
Additions
Settlements
Change in estimated cash flows

Ending Balance

2023

2022

$ 

513.5  $ 

20.0 
23.5 
(41.6) 
37.6 

$ 

553.0  $ 

512.4 
17.1 
9.5 
(22.3) 
(3.2) 
513.5 

Certain  non-legal  costs  of  removal  that  have  been,  and  continue  to  be,  included  in  depreciation  rates  and  collected  in  the 
customer rates of the rate-regulated subsidiaries are classified as "Regulatory liabilities" on the Consolidated Balance Sheets.

12. 

Regulatory Matters

Regulatory Assets and Liabilities
We follow the accounting and reporting requirements of ASC Topic 980, which provides that regulated entities account for and 
report assets and liabilities consistent with the economic effect of regulatory rate-making procedures when the rates established 
are  designed  to  recover  the  costs  of  providing  the  regulated  service  and  it  is  probable  that  such  rates  will  be  charged  and 
collected from customers. Certain expenses and credits subject to utility regulation or rate determination normally reflected in 
income  or  expense  are  deferred  on  the  balance  sheet  and  are  recognized  in  the  income  statement  as  the  related  amounts  are 
included in customer rates and recovered from or refunded to customers. We assess the probability of collection for all of our 
regulatory assets each period.

85

 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

Regulatory assets were comprised of the following items:

At December 31, (in millions)
Regulatory Assets

2023

2022

Unrecognized pension and other postretirement benefit costs (see Note 16)

$ 

561.6  $ 

Deferred pension and other postretirement benefit costs (see Note 16)
Environmental costs (see Note 19-D.)

Regulatory effects of accounting for income taxes (see Note 1-N. and Note 15)

Under-recovered gas and fuel costs (see Note 1-J.)

Depreciation

Post-in-service carrying charges

Safety activity costs

DSM programs
Retired coal generating stations

Losses on commodity price risk programs (See Note 13)
Deferred property taxes
Renewable energy investments (See Note 1-S. and Note 4)
Other

Total Regulatory Assets
Less: Current Portion
Total Noncurrent Regulatory Assets

Regulatory liabilities were comprised of the following items:

At December 31, (in millions)
Regulatory Liabilities

Over-recovered gas and fuel costs (see Note 1-J.)
Cost of removal (see Note 11)
Regulatory effects of accounting for income taxes (see Note 1-N. and Note 15)
Deferred pension and other postretirement benefit costs (see Note 16)
Gains on commodity price risk programs (See Note 13)
Customer Assistance Programs

Off-Systems sales sharing
HLBV Adjustments under ASC 980

Rate Refunds
Other

Total Regulatory Liabilities
Less: Current Portion

Total Noncurrent Regulatory Liabilities

59.7 

40.6 

163.5 

12.7 

201.9 

269.9 
206.6 

25.0 

682.0 
24.4 
72.3 
60.8 
79.2 
2,460.2  $ 
214.3 
2,245.9  $ 

607.5 

72.2 

41.4 

158.0 

85.5 

191.3 

251.5 
200.7 

37.5 

744.0 
10.0 
68.5 
37.7 
75.0 
2,580.8 
233.2 
2,347.6 

$ 

$ 

$ 

2023

2022

144.5  $ 
597.2 
849.9 
54.0 
23.3 
19.8 
19.0 

18.1 
16.1 

47.4 

20.6 
675.9 
996.3 
66.8 
90.0 
32.9 
12.3 

5.4 
51.4 

61.0 

$ 

$ 

1,789.3  $ 
278.6 

1,510.7  $ 

2,012.6 
236.8 

1,775.8 

Regulatory  assets,  including  under-recovered  gas  and  fuel  costs  and  depreciation,  of  approximately  $716.4  million  and 
$1,324.7  million  as  of  December  31,  2023  and  2022,  respectively,  are  not  earning  a  return  on  investment.  These  costs  are 
recovered over a remaining life, the longest of which is 69 years.

Assets:

Unrecognized pension and other postretirement benefit costs. Represents the deferred other comprehensive income or loss of 
the  actuarial  gains  or  losses  and  the  prior  service  costs  or  credits  that  arise  during  the  period  but  that  are  not  immediately 

86

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

recognized as components of net periodic benefit costs by certain subsidiaries that will ultimately be recovered through base 
rates.

Deferred  pension  and  other  postretirement  benefit  costs.  Primarily  relates  to  the  difference  between  defined  benefit  plan 
expense  recorded  by  certain  subsidiaries  due  to  regulatory  orders  and  the  corresponding  expense  that  would  otherwise  be 
recorded in accordance with GAAP. The majority of these amounts are driven by Columbia of Ohio. On January 26, 2023, the 
PUCO approved the joint stipulation in Columbia of Ohio's rate case in which, Columbia agreed to forego the continuation of 
its pension and OPEB deferral prospectively as of March 31, 2021. 

Environmental  costs.  Includes  certain  recoverable  costs  related  to  gas  plant  sites,  disposal  sites  or  other  sites  onto  which 
material may have migrated, the recovery of which is to be addressed in future base rates, billing riders or tracking mechanisms 
of certain of our subsidiaries.

Regulatory effects of accounting for income taxes. Represents the deferral and under collection of deferred taxes in the rate 
making process. 

Under-recovered gas and fuel costs. Represents the difference between the costs of gas and fuel, as well as energy acquired 
through power purchase agreements, including NIPSCO's own renewable projects, and the recovery of such costs in revenue 
and  is  used  to  adjust  future  billings  for  such  deferrals  on  a  basis  consistent  with  applicable  state-approved  tariff  provisions. 
Recovery of these costs is achieved through tracking mechanisms.

Depreciation.  Represents  differences  between  depreciation  expense  incurred  on  a  GAAP  basis  and  that  prescribed  through 
regulatory order. The majority of this balance is driven by Columbia of Ohio's IRP and CEP deferrals.

Post-in-service  carrying  charges.  Represents  deferred  debt-based  carrying  charges  incurred  on  certain  assets  placed  into 
service  but  not  yet  included  in  customer  rates.  The  majority  of  this  balance  is  driven  by  Columbia  of  Ohio's  IRP  and  CEP 
deferrals.

Safety activity costs. Represents the difference between costs incurred by certain of our subsidiaries in eligible safety programs 
in compliance with PHMSA regulations in excess of those being recovered in rates. The majority of this balance is driven by 
Columbia of Ohio, which began recovery in March 2023 through base rates.

DSM programs. Represents costs associated with Gas Distribution Operations and Electric Operations energy efficiency and 
conservation programs. Costs are recovered through tracking mechanisms. 

Retired coal generating stations. Represents the net book value of Units 7 and 8 of Bailly Generating Station that was retired 
during 2018 and the net book value of Units 14 and 15 of R.M. Schahfer Generating Station retired in 2021. These amounts are 
currently being amortized at a rate consistent with their inclusion in customer rates. The December 2023 NIPSCO electric rate 
case order allows for the recovery of, and on, the net book value of the stations by the end of 2034 and implements a revenue 
credit for the retired units. The credit is based on the difference between the net book value of Units 14 and 15 upon retirement 
and the last base rate case proceeding. The credit will be reset when new base rates are determined. See Note 9, "Property, Plant 
and Equipment," for further details.

Losses on commodity price risk programs. Represents the unrealized losses related to certain of our subsidiary's commodity 
price risk programs. These programs help to protect against the volatility of commodity prices and these amounts are collected 
from customers through their inclusion in customer rates.

Deferred property taxes. Represents the deferral and under collection of property taxes in the rate making process for Columbia 
of Ohio and is driven by the IRP and CEP deferrals.

Renewable  energy  investments.  Represents  the  regulatory  deferral  of  certain  amounts  representing  the  timing  difference 
between  the  profit  earned  from  the  JVs  and  the  amount  included  in  regulated  rates  to  recover  our  approved  investments  in 
consolidated JVs. These amounts will be collected through base rates over the life of the renewable generating assets to which 
they relate. The offset to the regulatory liability or asset associated with our renewable investments is recorded in "Depreciation 
expense" on the Statements of Consolidated Comprehensive Income. Renewable energy formation and developer costs are also 
included in this regulatory asset. Refer to Note 1, "Nature of Operations and Summary of Significant Accounting Policies - S. 
Noncontrolling  Interest,"  Note  4,  "Noncontrolling  Interest,"  and  Note  9,  "Property,  Plant  and  Equipment,"  for  additional 
information. 

87

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

 Liabilities:

Over-recovered  gas  and  fuel  costs.  Represents  the  difference  between  the  cost  of  gas  and  fuel,  as  well  as  energy  acquired 
through power purchase agreements, including NIPSCO's own renewable projects and, the recovery of such costs in revenues 
and is the basis to adjust future billings for such refunds on a basis consistent with applicable state-approved tariff provisions. 
Refunding of these revenues is achieved through tracking mechanisms.

Cost of removal. Represents anticipated costs of removal for utility assets that have been collected through depreciation rates 
for future costs to be incurred.

Regulatory  effects  of  accounting  for  income  taxes.  Represents  amounts  owed  to  customers  for  deferred  taxes  collected  at  a 
higher rate than the current statutory rates and liabilities associated with accelerated tax deductions owed to customers. Balance 
includes  excess  deferred  taxes  recorded  upon  implementation  of  the  TCJA  in  December  2017,  net  of  amounts  amortized 
through 2023. For discussion of the regulatory impact of the NIPSCO Minority Interest Transaction on deferred taxes, see Note 
15, "Income Taxes," for additional details.

Deferred pension and other postretirement benefit costs. Primarily represents cash contributions in excess of postretirement 
benefit expense that is deferred by certain subsidiaries.

Gains  on  commodity  price  risk  programs.  Represents  the  unrealized  gains  related  to  certain  of  our  subsidiary's  commodity 
price risk programs. These programs help to protect against the volatility of commodity prices, and these amounts are passed 
back to customers through their inclusion in customer rates.

Customer  Assistance  Programs.  Represents  the  difference  between  the  eligible  customer  assistance  program  costs  and 
collections, which will be refunded to customers.

Rate Refunds. Represents supplier refunds received by the company that are owed to customers and will be remitted.

Off System Sales Sharing. Represents amounts to be passed back to the customers as a result of Off System sales that is shared 
between the company and the customer.

NIPSCO regulatory update
As part of the NIPSCO Gas Settlement and Stipulation Agreement filed on March 2, 2022, NIPSCO Gas agreed to change the 
depreciation methodology for its calculation of depreciation rates, which reduces depreciation expense and subsequent revenues 
and cash flows. An order was received on July 27, 2022 approving the settlement and rates were effective as of September 1, 
2022. As part of the NIPSCO Electric base rate case and the Stipulation and Settlement Agreement filed on March 10, 2023, 
NIPSCO  Electric  agreed  to  change  the  depreciation  methodology  for  its  calculation  of  depreciation  rates,  which  will  reduce 
depreciation  expense  and  subsequent  revenues  and  cash  flows.  An  order  was  received  on  August  2,  2023  approving  the 
settlement, and rates were effective as of August 4, 2023. On October 11, 2023, the IURC issued an order clarifying how the 
rate increase should have been implemented, holding that the new rates should have only applied to electric usage on or after 
August 4, 2023, and not for electric usage prior to that date for bills yet to be rendered. NIPSCO was ordered to make a filing 
reflecting the calculation of the refund to customers by November 10, 2023. The refund was passed back to customers through 
bills in November and December 2023.

Columbia of Ohio regulatory filing update
On February 28, 2023, Columbia of Ohio filed an application with the PUCO requesting authority to establish a new rider, the 
PHMSA Infrastructure Replacement Program (“PHMSA IRP”) Rider. The Rider was proposed to recover the capital and O&M 
costs  associated  with  compliance  of  the  PHMSA  Mega  Rule.  On  July  7,  2023,  the  PUCO  Staff  filed  a  Staff  Report 
recommending approval of the PHMSA IRP Rider, with several modifications. A Joint Stipulation and Recommendation was 
filed on September 8, 2023, recommending approval of the PHMSA IRP Rider, as modified by the Staff Report and as further 
modified by the terms of the Joint Stipulation and Recommendation. The PUCO approved the PHMSA IRP Rider by Opinion 
and Order dated November 1, 2023.	Columbia of Ohio filed its notice of intent to utilize the PHMSA IRP Rider to seek cost 
recovery for its 2023 investments in Q4 2023.  

FAC Adjustment
As ordered by the IURC on June 15, 2022, NIPSCO was required to refund to customers $8.0 million of over-collected fuel 
costs. The refund was recorded as a regulatory liability on the Consolidated Balance Sheets and was fully refunded in 2023, 
which eliminated the liability.

88

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

13.  

Risk Management Activities

We are exposed to certain risks related to our ongoing business operations; namely commodity price risk and interest rate risk. 
We  recognize  that  the  prudent  and  selective  use  of  derivatives  may  help  to  limit  volatility  in  the  price  of  natural  gas,  and 
manage interest rate exposure.

Risk management assets and liabilities on our derivatives are presented on the Consolidated Balance Sheets as shown below:

(in millions)
Current(1)

December 31, 2023

December 31, 2022

Assets 

Liabilities

Assets

Liabilities

Derivatives not designated as hedging instruments

Total
Noncurrent(2)

Derivatives not designated as hedging instruments

$ 

$ 

$ 

1.1  $ 

1.1  $ 

7.5  $ 

7.5  $ 

18.8  $ 

18.8  $ 

22.2  $ 

1.9  $ 

66.0  $ 

1.1 

1.1 

1.9 

$ 
Total
(1) Current assets and liabilities are presented in "Prepayments and other" and "Other accruals", respectively, on the Consolidated Balance Sheets.
(2) Noncurrent assets and liabilities are presented in "Deferred charges and other" and "Other noncurrent liabilities and deferred credits", respectively, on the 
Consolidated Balance Sheets.

22.2  $ 

66.0  $ 

1.9  $ 

1.9 

Our  derivative  instruments  are  subject  to  enforceable  master  netting  arrangements  or  similar  agreements.  No  collateral  was 
either  received  or  posted  related  to  our  outstanding  derivative  positions  at  December  31,  2023.  If  the  above  gross  asset  and 
liability positions were presented net of amounts owed or receivable from counterparties, we would report a net asset position 
of $13.9 million and $81.8 million at December 31, 2023 and 2022, respectively.

Derivatives Not Designated as Hedging Instruments
Commodity price risk management. We, along with our utility customers, are exposed to variability in cash flows associated 
with  natural  gas  purchases  and  volatility  in  natural  gas  prices.  We  purchase  natural  gas  for  sale  and  delivery  to  our  retail, 
commercial and industrial customers, and for most customers the variability in the market price of gas is passed through in their 
rates. Some of our utility subsidiaries offer programs whereby variability in the market price of gas is assumed by the respective 
utility. The objective of our commodity price risk programs is to mitigate the gas cost variability, for us or on behalf of our 
customers,  associated  with  natural  gas  purchases  or  sales  by  economically  hedging  the  various  gas  cost  components  using  a 
combination  of  futures,  options,  forwards  or  other  derivative  contracts.  As  of  December  31,  2023  and  2022,  we  had  76.1 
MMDth and 99.0 MMDth, respectively, of net energy derivative volumes outstanding related to our natural gas hedges.

NIPSCO has received IURC approval to lock in a fixed price for its natural gas customers using long-term forward purchase 
instruments  and  is  limited  to  20%  of  NIPSCO’s  average  annual  GCA  purchase  volume.  As  of  December  31,  2023,  the 
remaining terms of these instruments range from one to four years. Likewise, Columbia of Pennsylvania has received approval 
for a 24-month rolling hedge program. The hedging program was executed in December 2023, with an effective date of April 1, 
2024  and  will  continue  in  perpetuity.  The  program  is  designed  to  financially  hedge  approximately  20%  of  the  customer’s 
annual demand. All gains and losses on these derivative contracts are deferred as regulatory liabilities or assets and are remitted 
to or collected from customers through the relevant cost recovery mechanism. 

Derivatives Designated as Hedging Instruments
Interest rate risk management. As of December 31, 2023 and 2022, we had no forward-starting interest rate swaps outstanding. 

The overall net gain related to our multiple settled interest rate swaps is recorded to AOCI. We amortize the net gain over the 
life of the debt associated with these swaps as we recognize interest expense. These amounts are immaterial in 2023, 2022 and 
2021 and are recorded in "Interest expense, net" on the Statements of Consolidated Income. 

Cash flows for derivative financial instruments are generally classified as operating activities.

89

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

14. 

A.

Fair Value

Fair Value Measurements

Recurring Fair Value Measurements

The following tables present financial assets and liabilities measured and recorded at fair value on our Consolidated Balance 
Sheets on a recurring basis and their level within the fair value hierarchy as of December 31, 2023 and December 31, 2022:

Recurring Fair Value Measurements
December 31, 2023 (in millions)
Assets

Risk management assets

Available-for-sale debt securities

Total
Liabilities

Risk management liabilities

Total

Recurring Fair Value Measurements
December 31, 2022 (in millions)
Assets

Risk management assets
Available-for-sale debt securities

Total
Liabilities

Risk management liabilities

Total

Quoted Prices
in Active 
Markets
for Identical 
Assets
(Level 1)

Significant 
Other
Observable 
Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3)

Balance as of
December 31, 2023

$ 

$ 

$ 
$ 

—  $ 
— 
—  $ 

—  $ 
—  $ 

23.3  $ 
159.1 
182.4  $ 

9.4  $ 
9.4  $ 

—  $ 
— 
—  $ 

—  $ 
—  $ 

23.3 
159.1 
182.4 

9.4 
9.4 

Quoted Prices
in Active 
Markets
for Identical 
Assets
(Level 1)

Significant 
Other
Observable 
Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3)

Balance as of
December 31, 2022

$ 

$ 

$ 
$ 

—  $ 
— 
—  $ 

—  $ 
—  $ 

84.8  $ 
151.6 
236.4  $ 

3.0  $ 
3.0  $ 

—  $ 
— 
—  $ 

—  $ 
—  $ 

84.8 
151.6 
236.4 

3.0 
3.0 

Risk Management Assets and Liabilities. Risk management assets and liabilities include interest rate swaps, exchange-traded 
NYMEX futures and NYMEX options and non-exchange-based forward purchase contracts. 

Level 1- When utilized, exchange-traded derivative contracts are based on unadjusted quoted prices in active markets and are 
classified within Level 1. These financial assets and liabilities are secured with cash on deposit with the exchange; therefore, 
nonperformance  risk  has  not  been  incorporated  into  these  valuations.  These  financial  assets  and  liabilities  are  deemed  to  be 
cleared and settled daily by NYMEX as the related cash collateral is posted with the exchange. As a result of this exchange rule, 
NYMEX  derivatives  are  considered  to  have  no  fair  value  at  the  balance  sheet  date  for  financial  reporting  purposes,  and  are 
presented in Level 1 net of posted cash; however, the derivatives remain outstanding and are subject to future commodity price 
fluctuations until they are settled in accordance with their contractual terms.

Level 2- Certain non-exchange-traded derivatives are valued using broker or over-the-counter, on-line exchanges. In such cases, 
these non-exchange-traded derivatives are classified within Level 2. Non-exchange-based derivative instruments include swaps, 
forwards, and options. In certain instances, these instruments may utilize models to measure fair value. We use a similar model 
to value similar instruments. Valuation models utilize various inputs that include quoted prices for similar assets or liabilities in 
active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, other observable inputs 

90

 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

for  the  asset  or  liability  and  market-corroborated  inputs,  (i.e.,  inputs  derived  principally  from  or  corroborated  by  observable 
market data by correlation or other means). Where observable inputs are available for substantially the full term of the asset or 
liability, the instrument is categorized within Level 2.

Level  3-  Certain  derivatives  trade  in  less  active  markets  with  a  lower  availability  of  pricing  information  and  models  may  be 
utilized  in  the  valuation.  When  such  inputs  have  a  significant  impact  on  the  measurement  of  fair  value,  the  instrument  is 
categorized within Level 3. 

Credit risk is considered in the fair value calculation of derivative instruments that are not exchange-traded. Credit exposures 
are adjusted to reflect collateral agreements that reduce exposures. As of December 31, 2023 and 2022, there were no material 
transfers between fair value hierarchies. Additionally, there were no changes in the method or significant assumptions used to 
estimate the fair value of our financial instruments.

NIPSCO and Columbia of Pennsylvania have entered into long-term forward natural gas purchase instruments to lock in a fixed 
price  for  their  natural  gas  customers.  We  value  these  contracts  using  a  pricing  model  that  incorporates  market-based 
information  when  available,  as  these  instruments  trade  less  frequently  and  are  classified  within  Level  2  of  the  fair  value 
hierarchy. For additional information, see Note 13, “Risk Management Activities.”

Available-for-Sale  Debt  Securities.  Available-for-sale  debt  securities  are  investments  pledged  as  collateral  for  trust  accounts 
related to our wholly-owned insurance company. We value U.S. Treasury, corporate debt and mortgage-backed securities using 
a  matrix  pricing  model  that  incorporates  market-based  information.  These  securities  trade  less  frequently  and  are  classified 
within Level 2. 

Our available-for-sale debt securities impairments are recognized periodically using an allowance approach. At each reporting 
date, we utilize a quantitative and qualitative review process to assess the impairment of available-for-sale debt securities at the 
individual security level. For securities in a loss position, we evaluate our intent to sell or whether it is more-likely-than-not that 
we will be required to sell the security prior to the recovery of its amortized cost. If either criteria is met, the loss is recognized 
in earnings immediately, with the offsetting entry to the carrying value of the security. If both criteria are not met, we perform 
an analysis to determine whether the unrealized loss is related to credit factors. The analysis focuses on a variety of factors that 
include,  but  are  not  limited  to,  downgrade  on  ratings  of  the  security,  defaults  in  the  current  reporting  period  or  projected 
defaults  in  the  future,  the  security's  yield  spread  over  treasuries,  and  other  relevant  market  data.  If  the  unrealized  loss  is  not 
related to credit factors, it is included in other comprehensive income. If the unrealized loss is related to credit factors, the loss 
is recognized as credit loss expense in earnings during the period, with an offsetting entry to the allowance for credit losses. The 
amount of the credit loss recorded to the allowance account is limited by the amount at which the security's fair value is less 
than  its  amortized  cost  basis.  If  certain  amounts  recorded  in  the  allowance  for  credit  losses  are  deemed  uncollectible,  the 
allowance  on  the  uncollectible  portion  will  be  charged  off,  with  an  offsetting  entry  to  the  carrying  value  of  the  security. 
Subsequent improvements to the estimated credit losses of available-for-sale debt securities will be recognized immediately in 
earnings.  As  of  December  31,  2023  and  December  31,  2022,  we  recorded  $0.6  million  and  $0.9  million,  respectively,  as  an 
allowance for credit losses on available-for-sale debt securities as a result of the analysis described above. Continuous credit 
monitoring and portfolio credit balancing mitigates our risk of credit losses on our available-for-sale debt securities. 

91

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

The amortized cost, gross unrealized gains and losses, allowance for credit losses, and fair value of available-for-sale securities 
at December 31, 2023 and 2022 were: 

Amortized
Cost

Gross
Unrealized
Gains

Gross
Unrealized
Losses(1)

Allowance for 
Credit Losses

Fair Value

$ 

$ 

63.8  $ 

105.2 
169.0  $ 

—  $ 

0.8 
0.8  $ 

(3.2)  $ 

(6.9)   
(10.1)  $ 

—  $ 

(0.6)   
(0.6)  $ 

60.6 

98.5 
159.1 

Amortized
Cost

Gross
Unrealized
Gains

Gross
Unrealized
Losses(2)

Allowance for 
Credit Losses

Fair Value

December 31, 2023 (in millions)
Available-for-sale debt securities
U.S. Treasury debt securities

Corporate/Other debt securities

Total

December 31, 2022 (in millions)
Available-for-sale debt securities
U.S. Treasury debt securities
Corporate/Other debt securities

$ 

63.2 
88.4 
Total
151.6 
(1) Fair value of U.S. Treasury debt securities and Corporate/Other debt securities in an unrealized loss position without an allowance for credit losses is $58.7 
and $74.8 million, respectively, at December 31, 2023.
(2) Fair value of U.S. Treasury debt securities and Corporate/Other debt securities in an unrealized loss position without an allowance for credit losses is $61.0 
million and $85.5 million, respectively, at December 31, 2022.

67.7  $ 
99.0 
166.7  $ 

(4.5)  $ 
(9.7)   
(14.2)  $ 

—  $ 
(0.9)   
(0.9)  $ 

—  $ 
— 
—  $ 

$ 

Realized  gains  and  losses  on  available-for-sale  securities  was  $1.0  million  for  the  year  ended  December  31,  2023  and 
immaterial for 2022. 

The cost of maturities sold is based upon specific identification. At December 31, 2023, approximately $16.8 million of U.S. 
Treasury debt securities and approximately $4.9 million of Corporate/Other debt securities have maturities of less than a year.

There are no material items in the fair value reconciliation of Level 3 assets and liabilities measured at fair value on a recurring 
basis for the years ended December 31, 2023 and 2022.

Non-recurring Fair Value Measurements

We measure the fair value of certain assets, including goodwill, on a non-recurring basis, typically when events or changes in 
circumstances indicate that the carrying amount of the assets may not be recoverable. 

Purchase Contract Liability. The purchase contract liability underlying the Equity units was valued at its April 19, 2021 value 
and categorized as a Level 2 instrument at December 31, 2022. The purchase contract liability was fully settled as of December 
31, 2023. Refer to Note 6, "Equity," for additional information.

B.      Other  Fair  Value  Disclosures  for  Financial  Instruments.  The  carrying  amount  of  cash  and  cash  equivalents, 
restricted cash, notes receivable, customer deposits and short-term borrowings is a reasonable estimate of fair value due to their 
liquid or short-term nature. Our long-term borrowings are recorded at historical amounts.

The following method and assumptions were used to estimate the fair value of each class of financial instruments.

Long-term debt. The fair value of outstanding long-term debt is estimated based on the quoted market prices for the same or 
similar securities. Certain premium costs associated with the early settlement of long-term debt are not taken into consideration 
in determining fair value. These fair value measurements are classified within Level 2 of the fair value hierarchy. For the years 
ended December 31, 2023 and 2022, there was no change in the method or significant assumptions used to estimate the fair 
value of long-term debt.

92

 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

The carrying amount and estimated fair values of these financial instruments were as follows: 

At December 31, (in millions)
Long-term debt (including current portion)

15. 

Income Taxes

Carrying
Amount
2023
11,079.3  $ 

$ 

Estimated
Fair Value
2023

Carrying
Amount
2022

Estimated
Fair Value
2022

10,370.9  $ 

9,553.6  $ 

8,479.4 

Judgment and the use of estimates are required in developing the provision for income taxes and reporting of tax-related assets 
and liabilities. The interpretation of tax laws and associated regulations involves uncertainty as taxing authorities may interpret 
the laws differently.

NIPSCO’s historical business activities through the closing of the NIPSCO Minority Interest Transaction were included in the 
consolidated  U.S.  federal  and  certain  state  income  tax  returns  of  NiSource  Inc.  Historically,  NIPSCO  has  been  treated  as  a 
taxable division of its corporate parent, NiSource Inc., and then as a division of NIPSCO Holdings I effective April 13, 2023. In 
connection with the NIPSCO Minority Interest Transaction, NIPSCO Holdings I retained NIPSCO’s income tax balances and 
80.1% of the excess deferred income tax regulatory balances as described below. NIPSCO Holdings I’s income tax balances are 
based on the difference between the financial statement amount and the tax basis of its investment in NIPSCO Holdings II.

Income Tax Expense. The components of income tax expense (benefit) were as follows: 

Year Ended December 31, (in millions)
Income Taxes
Current

Federal
State

Total Current
Deferred

Federal

Taxes before operating loss carryforwards and investment credits
Tax utilization expense of operating loss carryforwards
Investment tax credits

State

Total Deferred
Deferred Investment Credits
Income Taxes

2023

2022

2021

$ 

—  $ 
5.3 
5.3 

0.4  $ 
7.3 
7.7 

49.7 
65.1 
(2.1)   
22.5 
135.2 

(1.0)   

87.9 
93.1 
— 
(23.0)   
158.0 

(1.1)   

$ 

139.5  $ 

164.6  $ 

(0.1) 
6.0 
5.9 

35.7 
63.5 
— 
13.8 
113.0 
(1.1) 

117.8 

In  connection  with  the  NIPSCO  Minority  Interest  Transaction,  NiSource  recognized  a  $63.5  million  income  tax  benefit  in 
additional  paid  in  capital  related  to  19.9%  of  NIPSCO’s  excess  deferred  income  taxes  attributable  to  Blackstone’s 
noncontrolling interest. This benefit does not impact NIPSCO’s regulatory books or the excess deferred taxes that will benefit 
customers through lower future rates in accordance with applicable regulatory orders. See Note 4, "Noncontrolling Interest," for 
further discussion of the NIPSCO Minority Interest Transaction.

93

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

Statutory  Rate  Reconciliation.  The  following  table  represents  a  reconciliation  of  income  tax  expense  at  the  statutory  federal 
income tax rate to the actual income tax expense from continuing operations:

Year Ended December 31, (in millions)
Book income before income taxes

Tax expense at statutory federal income tax rate
Increases (reductions) in taxes resulting from:

State income taxes, net of federal income tax benefit

Amortization of regulatory liabilities

Fines and penalties

Employee stock ownership plan dividends and other 
compensation
Tax accrual adjustments

Federal tax credits

Other adjustments

Income Taxes

2023

2022

2021

$  813.9 
170.8 

$  956.4 
200.8 

 21.0 %  

$  706.6 
148.3 

 21.0 %  

 21.0 %

13.7 

 1.7 

(38.2) 

 (4.7) 

— 

 — 

(1.3) 
— 

 (0.2) 
 — 

(4.9) 

 (0.6) 

(0.6) 

 (0.1) 

4.5 

 0.5 

14.1 

 2.0 

(38.5) 

 (4.0) 

(39.1) 

 (5.5) 

0.3 

 — 

— 

 — 

(1.2) 
0.2 

 (0.1) 
 — 

(2.3) 

 (0.2) 

0.8 

 — 

(1.2) 
(0.1) 

 (0.2) 
 — 

(2.1) 

 (0.3) 

(2.1) 

 (0.3) 

$  139.5 

 17.1 % $  164.6 

 17.2 % $  117.8 

 16.7 %

The difference in tax expense of $25.1 million in 2023 versus 2022 was primarily due to lower pre-tax income.

The increase in tax expense of $46.8 million in 2022 versus 2021 was primarily due to increased pre-tax income, offset by the 
flow-through  of  the  reduction  of  the  Pennsylvania  corporate  income  tax  rate  and  the  state  jurisdictional  mix  tax  effected  at 
statutory rates. 

Net  Deferred  Income  Tax  Liability  Components.  Deferred  income  taxes  result  from  temporary  differences  between  the 
financial  statement  carrying  amounts  and  the  tax  basis  of  existing  assets  and  liabilities.  The  principal  components  of  our  net 
deferred tax liabilities were as follows:

At December 31, (in millions)
Deferred tax liabilities

Accelerated depreciation and other property differences
Partnership basis differences
Other regulatory assets
Total Deferred Tax Liabilities
Deferred tax assets

Other regulatory liabilities and deferred investment tax credits (including TCJA)
Pension and other postretirement/postemployment benefits

Loss and credit carryforwards

Environmental liabilities
Other accrued liabilities

Other, net

Total Deferred Tax Assets

Valuation Allowance
Net Deferred Tax Assets

Net Deferred Tax Liabilities

2023

2022

$ 

1,384.8  $ 
1,241.9 
212.1 
2,838.8 

182.2 

58.6 

422.9 
10.1 

40.3 
50.7 

764.8 

(6.4)   

758.4 
2,080.4  $ 

$ 

2,473.6 
54.3 
348.4 
2,876.3 

294.3 

124.7 

491.0 
20.7 

55.9 
43.0 

1,029.6 

(7.8) 
1,021.8 
1,854.5 

In connection with closing the NIPSCO Minority Interest Transaction, NIPSCO’s deferred taxes were removed from its GAAP 
books and were reconstituted as deferred taxes on the outside basis difference of NiSource’s investment in NIPSCO Holdings 
II. These deferred taxes are reflected as partnership basis differences above. 

94

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

NiSource has the following deductible loss and credit carryforwards:

At December 31, 2023 (in millions)

Federal losses

Federal investment tax credits

Federal production tax credits

Federal other credit

State losses, net of federal benefit

Total

Deductible 
Amount

Deferred 
Tax Asset

Valuation 
Allowance

Expiration 
Period

$ 

1,642.4  $ 

344.9  $ 

— 

— 

— 

2,371.7 

2.1 

0.8 

15.7 

95.1 

— 

— 

— 

— 

2037

2043

2040-2043

2029-2043

(6.4)  2031-2037

$ 

458.6  $ 

(6.4) 

We believe it is not more likely than not that a portion of the benefit from certain state net operating loss carryforwards will be 
realized. We have recorded a valuation allowance of $6.4 million (net of federal benefit) on the deferred tax assets related to 
sale of Massachusetts Business assets reflected in the state net operating loss carryforward presented above.

Unrecognized Tax Benefits. A reconciliation of the beginning and ending amounts of unrecognized tax benefits is as follows:

At December 31, 2023, (in millions)
Opening Balance
Gross decreases - tax positions in prior period
Gross increases - current period tax positions
Ending Balance
Offset for net operating loss carryforwards
Balance, Less Net Operating Loss Carryforwards

2023

2022

2021

$ 

$ 

$ 

21.7  $ 
— 
— 
21.7  $ 
(21.7)   
—  $ 

21.7  $ 
— 
— 
21.7  $ 
(21.7)   

—  $ 

21.7 
— 
— 
21.7 
(21.7) 
— 

We  are  subject  to  income  taxation  in  the  United  States  and  various  state  jurisdictions,  primarily  Indiana,  Pennsylvania, 
Kentucky, Massachusetts, Maryland and Virginia.

We participate in the IRS CAP, which provides the opportunity to resolve tax matters with the IRS before filing each year's 
consolidated federal income tax return. As of December 31, 2023, tax years through 2021 have been audited and are closed to 
further assessment. The Company has transitioned to the Bridge Phase of the IRS CAP for the year ended December 31, 2022 
and participated in the Bridge Plus pilot program. Although NiSource has not received a final acceptance letter from the IRS for 
its 2022 return, no adjustments are expected, and the year is effectively closed to further assessment.

The statute of limitations in each of the state jurisdictions in which we operate remains open between 3-4 years from the date 
the state income tax returns are filed. As of December 31, 2023, there were no state income tax audits in progress that would 
have a material impact on the consolidated financial statements.

NiSource is obligated to report adjustments resulting from IRS audits or settlements to state taxing authorities. In addition, if 
NiSource  utilizes  net  operating  losses  or  tax  credits  generated  in  years  for  which  the  statute  of  limitations  has  expired,  such 
amounts are generally subject to examination.

On  April  14,  2023,  the  IRS  issued  Revenue  Procedure  2023-15  which  provides  a  safe  harbor  method  of  accounting  that 
taxpayers may use to determine whether expenses to repair, maintain, replace, or improve linear property and non-linear natural 
gas transmission and distribution property must be capitalized as improvements or are allowable as deductions. The Company is 
planning to elect this change in tax accounting method with its 2023 consolidated tax return filing in the upcoming year and 
continues to analyze and quantify the provisions of the safe harbor method of accounting.

95

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

16.  

Pension and Other Postemployment Benefits

We  provide  defined  contribution  plans  and  noncontributory  defined  benefit  retirement  plans  that  cover  certain  of  our 
employees. Benefits under the defined benefit retirement plans reflect the employees’ compensation, years of service and age at 
retirement.  Additionally,  we  provide  health  care  and  life  insurance  benefits  for  certain  retired  employees.  The  majority  of 
employees may become eligible for these benefits if they reach retirement age while working for us. The expected cost of such 
benefits  is  accrued  during  the  employees’  years  of  service.  Current  rates  of  rate-regulated  companies  include  postretirement 
benefit costs, including amortization of the regulatory assets that arose prior to inclusion of these costs in rates. For most plans, 
cash contributions are remitted to grantor trusts.

Our Pension and Other Postretirement Benefit Plans’ Asset Management. The Board has delegated oversight of the pension 
and  other  postretirement  benefit  plans’  assets  to  the  NiSource  Benefits  Committee  (“the  Committee”).  The  Committee  has 
adopted investment policy statements for the pension and other postretirement benefit plans’ assets. For the pension plans, we 
employ a liability-driven investing strategy. A total return approach is utilized for the other postretirement benefit plans’ assets. 
A mix of diversified investments are used to maximize the long-term return of plan assets and hedge the liabilities at a prudent 
level of risk. The investment portfolio includes U.S. and non-U.S. equities, real estate, long-term and intermediate-term fixed 
income and alternative investments. Risk tolerance is established through careful consideration of plan liabilities, funded status, 
and asset class volatility. Investment risk is measured and monitored on an ongoing basis through quarterly investment portfolio 
reviews, annual liability measurements, and periodic asset/liability studies.

In  determining  the  expected  long-term  rate  of  return  on  plan  assets,  historical  markets  are  studied,  relationships  between 
equities  and  fixed  income  are  analyzed  and  current  market  factors,  such  as  inflation  and  interest  rates  are  evaluated  with 
consideration  of  diversification  and  rebalancing.  Our  expected  long-term  rate  of  return  on  assets  is  based  on  assumptions 
regarding  target  asset  allocations  and  corresponding  long-term  capital  market  assumptions  for  each  asset  class.  The  pension 
plans’ investment policy calls for a gradual reduction in the allocation of return-seeking assets (equities, real estate and private 
equity)  and  a  corresponding  increase  in  the  allocation  of  liability-hedging  assets  (fixed  income)  as  the  funded  status  of  the 
plans’ increase.

As of December 31, 2023 and December 31, 2022, the acceptable minimum and maximum ranges established by the policy for 
the pension and other postretirement benefit plans are as follows:

December 31, 2023
Asset Category
Domestic Equities
International Equities
Fixed Income
Real Estate
Private Equity
Short-Term Investments

December 31, 2022
Asset Category
Domestic Equities
International Equities
Fixed Income
Real Estate
Private Equity
Short-Term Investments

Defined Benefit Pension Plan
Maximum
Minimum
30%
10%
15%
5%
75%
65%
0%
0%
3%
0%
10%
0%

Postretirement Benefit Plan
Maximum
Minimum
55%
0%
25%
0%
100%
20%
0%
0%
0%
0%
10%
0%

Defined Benefit Pension Plan
Maximum
Minimum
27%
7%
13%
3%
81%
69%
3%
0%
3%
0%
10%
0%

Postretirement Benefit Plan
Maximum
Minimum
55%
0%
25%
0%
100%
20%
0%
0%
0%
0%
10%
0%

96

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

The actual Pension Plan and Postretirement Plan Asset Mix at December 31, 2023 and December 31, 2022 are as follows:

Asset Class (in millions)
Domestic Equities

International Equities

Fixed Income

Real Estate

Cash/Other
Total

Asset Class (in millions)
Domestic Equities
International Equities
Fixed Income
Real Estate
Cash/Other
Total

Defined Benefit
Pension 
Assets(1)

Asset Value

December 31,
2023
% of Total 
Assets

Postretirement
Benefit Plan 
Assets

Asset Value

December 31,
2023
% of Total 
Assets

$ 

261.7 

141.9 

939.9 
4.0 

79.3 

 18.3 % $ 

 9.9 %  

 65.9 %  
 0.3 %  

 5.6 %  

93.7 

40.7 

97.0 
— 

5.1 

 39.6 %

 17.2 %

 41.0 %
— 

 2.2 %

$ 

1,426.8 

 100.0 % $ 

236.5 

 100.0 %

Defined Benefit 
Pension 
Assets(1)

Asset Value

December 31,
2022
% of Total 
Assets

Postretirement 
Benefit Plan 
Assets

Asset Value

December 31,
2022
% of Total 
Assets

$ 

231.1 
119.0 
1,004.3 
5.0 
63.4 
1,422.8 

 16.2 % $ 
 8.4 %  
 70.6 %  
 0.3 %  
 4.5 %  
 100.0 % $ 

86.9 
36.6 
94.7 
— 
6.7 
224.9 

 38.6 %
 16.3 %
 42.1 %
— 
 3.0 %
 100.0 %

$ 
(1)Total includes accrued dividends and pending trades with brokers.
The  categorization  of  investments  into  the  asset  classes  in  the  tables  above  are  based  on  definitions  established  by  the 
Committee. 

Fair  Value  Measurements.  The  following  table  sets  forth,  by  level  within  the  fair  value  hierarchy,  the  pension  and  other 
postretirement benefits investment assets at fair value as of December 31, 2023 and 2022. Assets are classified in their entirety 
based on the observability of inputs used in determining the fair value measurement. There were no investment assets in the 
pension and other postretirement benefits trusts classified within Level 3 for the years ended December 31, 2023 and 2022.

We  use  the  following  valuation  techniques  to  determine  fair  value.  For  the  year  ended  December  31,  2023,  there  were  no 
significant changes to valuation techniques to determine the fair value of our pension and other postretirement benefits' assets. 

Level 1 Measurements
Most  common  and  preferred  stocks  are  traded  in  active  markets  on  national  and  international  securities  exchanges  and  are 
valued at closing prices on the last business day of each period presented. Cash is stated at cost, which approximates fair value, 
with the exception of cash held in foreign currencies which fluctuates with changes in the exchange rates. Short-term bills and 
notes are priced based on quoted market values.

Level 2 Measurements
Most  U.S.  Government  Agency  obligations,  mortgage/asset-backed  securities,  and  corporate  fixed  income  securities  are 
generally  valued  by  benchmarking  model-derived  prices  to  quoted  market  prices  and  trade  data  for  identical  or  comparable 
securities. To the extent that quoted prices are not available, fair value is determined based on a valuation model that includes 
inputs such as interest rate yield curves and credit spreads. Securities traded in markets that are not considered active are valued 
based  on  quoted  market  prices,  broker  or  dealer  quotations,  or  alternative  pricing  sources  with  reasonable  levels  of  price 
transparency. Other fixed income includes futures and options which are priced on bid valuation or settlement pricing. 

97

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

Level 3 Measurements
Investments with unobservable inputs that are supported by little or no market activity and that are significant to the fair value 
of the assets and liabilities are classified as level 3 investments.

Not Classified
Commingled  funds,  private  equity  limited  partnerships  and  real  estate  partnerships  are  not  classified  within  the  fair  value 
hierarchy.  Instead,  these  assets  are  measured  at  estimated  fair  value  using  the  net  asset  value  per  share  of  the  investments. 
Commingled funds' underlying assets are principally marketable equity and fixed income securities. Units held in commingled 
funds  are  valued  at  the  unit  value  as  reported  by  the  investment  managers.  Private  equity  funds  invest  capital  in  non-public 
companies and real estate funds invest in commercial and distressed real estate directly or through related debt instruments. The 
fair value of these investments is determined by reference to the funds’ underlying assets.

98

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

Fair Value Measurements at December 31, 2023: 

December 31,
2023

Quoted Prices in  
Active Markets for
 Identical Assets 
(Level 1)

Significant Other
Observable Inputs 
(Level 2)

Significant
Unobservable Inputs
 (Level 3)

(in millions)
Pension plan assets:

Cash

Equity securities

International equities

Fixed income securities

Government

Corporate

Mortgages/ Asset Backed Securities

Mutual Funds

U.S. multi-strategy

International equities

Private equity limited partnerships(1)

U.S. multi-strategy(2)
International multi-strategy(3)
Distressed opportunities

Real estate(1)
Commingled funds(1)

Short-term money markets

U.S. equities

International equities

Fixed income

$ 

2.2  $ 

2.0  $ 

0.2  $ 

1.1 

213.1 

482.2 

2.4 

113.1 

38.5 

4.8 

1.2 

0.1 

4.0 

65.3 

148.5 

102.3 

242.2 

1.1 

— 

— 

— 

113.1 

38.5 

— 

— 

— 

— 

— 

— 

— 

— 

— 

213.1 

482.2 

2.4 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

Pension plan assets subtotal

$ 

1,421.0  $ 

154.7  $ 

697.9  $ 

Other postretirement benefit plan assets:

Mutual funds

U.S. multi-strategy

International equities

Fixed income
Commingled funds(1)

Short-term money markets

U.S. equities

International equities

Other postretirement benefit plan assets 
subtotal
Due to brokers, net(4)
Accrued income/dividends
Total pension and other postretirement 
benefit plan assets

$ 

$ 

82.4 

18.0 

97.0 

5.2 

11.4 

22.8 

82.4 

18.0 

97.0 

— 

— 

— 

236.8  $ 
(2.7) 
8.5 

197.4  $ 
— 
8.5 

— 

— 

— 

— 

— 

— 

—  $ 

(2.7) 

1,663.6  $ 

360.6  $ 

695.2  $ 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 
— 
— 

— 

(1))This class of investments is measured at fair value using the net asset value per share and has not been classified in the fair value hierarchy.
(2)This class includes limited partnerships that invest in a diverse portfolio of private equity strategies, including buy-outs, growth capital, special situations and 
secondary markets, primarily inside the United States. 
(3)This class includes limited partnerships that invest a in diverse portfolio of private equity strategies, including buy-outs, growth capital, special situations and 
secondary markets, primarily outside the United States.
(4)This class represents pending trades with brokers.

99

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

The  table  below  sets  forth  a  summary  of  unfunded  commitments,  redemption  frequency  and  redemption  notice  periods  for 
certain investments that are measured at fair value using the net asset value per share for the year ended December 31, 2023:

(in millions)

Commingled Funds

Fair Value

Unfunded 
Commitments

Redemption 
Frequency

Redemption Notice 
Period

Short-term money markets

$ 

70.5  $ 

U.S. equities

International equities

Fixed income

Private Equity and Real Estate Limited Partnerships(1)

159.9 

125.1 

242.2 

10.1 

— 

— 

— 

— 

11.6 

Daily

Daily

1 day

1 day - 5 days

Monthly

10 days-30 days

Daily

N/A

3 days

N/A

Total
(1)Private  equity  and  real  estate  limited  partnerships  typically  call  capital  over  a  3-5  year  period  and  pay  out  distributions  as  the  underlying  investments  are 
liquidated. The typical expected life of these limited partnerships is 0-15 years, and these investments typically cannot be redeemed prior to liquidation.

607.8  $ 

11.6 

$ 

100

 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

Fair Value Measurements at December 31, 2022:

December 31,
2022

Quoted Prices in 
Active Markets for 
Identical Assets 
(Level 1)

Significant Other
Observable Inputs 
(Level 2)

Significant
Unobservable Inputs 
(Level 3)

(in millions)
Pension plan assets:

Cash

Equity securities

International equities

Fixed income securities

Government

Corporate

Mortgages/Asset backed securities

Other fixed income

Mutual Funds

U.S. multi-strategy

International equities

Fixed income

Private equity limited partnerships(1)

U.S. multi-strategy(2)
International multi-strategy(3)
Distressed opportunities

Real estate(1)
Commingled funds(1)

Short-term money markets

U.S. equities

International equities

Fixed income

$ 

2.5  $ 

2.0  $ 

0.5  $ 

0.5 

316.3 

407.8 

2.3 

1.9 

97.4 

29.0 

0.2 

6.3 

2.3 

0.1 

5.0 

46.2 

133.7 

89.6 

275.9 

0.5 

— 

— 

— 

1.9 

97.4 

29.0 

0.2 

— 

— 

— 

— 

— 

— 

— 

— 

— 

316.3 

407.8 

2.3 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

Pension plan assets subtotal

$ 

1,417.0  $ 

131.0  $ 

726.9  $ 

Other postretirement benefit plan assets:

Mutual funds

U.S. multi-strategy

International equities

Fixed income
Commingled funds(1)

Short-term money markets

U.S. equities

International equities

76.2 

16.3 

94.7 

17.4 

10.7 

20.3 

76.2 

16.3 

94.7 

— 

— 

— 

— 

— 

— 

— 

— 

— 

Other postretirement benefit plan assets 
subtotal
Due to brokers, net(4)
Receivables/payables

$ 

Accrued income/dividends

Total  pension  and  other  postretirement 
benefit plan assets

$ 

235.6  $ 

187.2  $ 

—  $ 

(2.0) 

(10.7) 

7.8 

— 

— 

7.8 

(2.0) 

(10.7) 

— 

1,647.7  $ 

326.0  $ 

714.2  $ 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

(1)This class of investments is measured at fair value using the net asset value per share and has not been classified in the fair value hierarchy.
(2)This class includes limited partnerships/fund of funds that invest in a diverse portfolio of private equity strategies, including buy-outs, growth capital, special 
situations and secondary markets, primarily inside the United States. 

101

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

(3)This class includes limited partnerships/fund of funds that invest in diverse portfolio of private equity strategies, including buy-outs, growth capital, special 
situations and secondary markets, primarily outside the United States.
(4)This class represents pending trades with brokers.

The  table  below  sets  forth  a  summary  of  unfunded  commitments,  redemption  frequency  and  redemption  notice  periods  for 
certain investments that are measured at fair value using the net asset value per share for the year ended December 31, 2022:

(in millions)
Commingled Funds

Short-term money markets

U.S. equities

International equities

Fixed income

Private Equity and Real Estate Limited Partnerships(1)
Total

Fair Value

Unfunded 
Commitments

Redemption 
Frequency

Redemption Notice 
Period

$ 

63.6  $ 

144.4 

109.9 

275.9 

13.7 

$ 

607.5  $ 

— 

— 

— 

— 

11.6 

11.6 

Daily

Daily

1 day

1 day -5 days

Monthly

10 days - 30 days

Daily

N/A

3 days

N/A

(1)Private  equity  and  real  estate  limited  partnerships  typically  call  capital  over  a  3-5  year  period  and  pay  out  distributions  as  the  underlying  investments  are 
liquidated. The typical expected life of these limited partnerships is 0-15 years, and these investments typically cannot be redeemed prior to liquidation.

102

 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

Our Pension and Other Postretirement Benefit Plans’ Funded Status and Related Disclosure. The following table provides a 
reconciliation of the plans’ funded status and amounts reflected in our Consolidated Balance Sheets at December 31 based on a 
December 31 measurement date:

(in millions)
Change in projected benefit obligation(1)
Benefit obligation at beginning of year
Service cost
Interest cost
Plan participants’ contributions
Plan amendments
Actuarial loss (gain)(2)
Benefits paid
Estimated benefits paid by incurred subsidy
Projected benefit obligation at end of year
Change in plan assets
Fair value of plan assets at beginning of year
Actual return on plan assets
Employer contributions
Plan participants’ contributions
Benefits paid
Fair value of plan assets at end of year
Funded Status at end of year
Amounts recognized in the statement of 
financial position consist of:

Noncurrent assets
Current liabilities
Noncurrent liabilities
Net amount recognized at end of year(3)
Amounts recognized in accumulated other 
comprehensive income or regulatory asset/liability(4)

Pension Benefits

Other Postretirement Benefits

2023

2022

2023

2022

$ 

$ 

$ 

$ 
$ 

1,427.4  $ 
20.5 
68.4 
— 
— 
27.4 
(141.9) 
— 
1,401.8  $ 

1,422.8  $ 
142.8 
3.1 
— 
(141.9) 
1,426.8  $ 
25.0  $ 

1,852.4  $ 
27.8 
40.5 
— 
0.2 
(318.7) 
(174.8) 
— 
1,427.4  $ 

1,981.7  $ 
(386.8) 
2.7 
— 
(174.8) 
1,422.8  $ 
(4.6)  $ 

44.1 
(2.2) 
(16.9) 

18.3 
(2.6) 
(20.3) 

449.0  $ 
5.1 
21.8 
4.2 
3.4 
29.1 
(44.3) 
0.5 
468.8  $ 

224.9  $ 
28.2 
23.4 
4.3 
(44.3) 
236.5  $ 
(232.3)  $ 

— 
(1.0) 
(231.3) 

$ 

25.0  $ 

(4.6)  $ 

(232.3)  $ 

556.2 
6.5 
12.0 
4.1 
2.1 
(89.9) 
(42.3) 
0.3 
449.0 

293.7 
(51.9) 
21.3 
4.1 
(42.3) 
224.9 
(224.1) 

— 
(1.0) 
(223.1) 

(224.1) 

$ 

0.4  $ 

0.3  $ 

Unrecognized prior service credit
Unrecognized actuarial loss
 Net amount recognized at end of year
(1)The change in benefit obligation for Pension Benefits represents the change in Projected Benefit Obligation while the change in benefit obligation for Other 
Postretirement Benefits represents the change in accumulated postretirement benefit obligation.
(2)The pension actuarial loss (gain) was primarily driven by the decrease in discount rates, interest rate movements. The postretirement benefit actuarial loss 
(gain) was also primarily driven by a decrease in discount rates and claims experience changes in trend rates.
(3)We  recognize  our  Consolidated  Balance  Sheets  underfunded  and  overfunded  status  of  our  various  defined  benefit  postretirement  plans,  measured  as  the 
difference between the fair value of the plan assets and the benefit obligation.
(4)We  determined  that  for  certain  rate-regulated  subsidiaries  the  future  recovery  of  pension  and  other  postretirement  benefits  costs  is  probable.  These  rate-
regulated subsidiaries recorded regulatory assets and liabilities of $561.6 million and zero, respectively, as of December 31, 2023, and $607.5 million and zero, 
respectively, as of December 31, 2022 that would otherwise have been recorded to accumulated other comprehensive loss.

564.2 
564.6  $ 

500.4 
500.7  $ 

2.1  $ 
76.6 
78.7  $ 

(3.4) 
64.0 
60.6 

$ 

Our accumulated benefit obligation for our pension plans was $1,390.9 million and $1,416.8 million as of December 31, 2023 
and 2022, respectively. The accumulated benefit obligation at each date is the actuarial present value of benefits attributed by 
the pension benefit formula to employee service rendered prior to that date and based on current and past compensation levels. 
The accumulated benefit obligation differs from the projected benefit obligation disclosed in the table above in that it includes 
no assumptions about future compensation levels. 

We are required to reflect the funded status of our pension and postretirement benefit plans on the Consolidated Balance Sheet. 
The  funded  status  of  the  plans  is  measured  as  the  difference  between  the  plan  assets'  fair  value  and  the  projected  benefit 
obligation.  We  present  the  noncurrent  aggregate  of  all  underfunded  plans  within  "Accrued  liability  for  postretirement  and 
postemployment benefits." The portion of the amount by which the actuarial present value of benefits included in the projected 

103

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

benefit obligation exceeds the fair value of plan assets, payable in the next 12 months, is reflected in "Accrued compensation 
and other benefits." We present the aggregate of all overfunded plans within "Deferred charges and other."

As of December 31, 2023 and 2022, only our nonqualified plans were underfunded. These plans have no assets as they are not 
funded until benefits are paid. The following table sets forth the year end accumulated benefit obligation and projected benefit 
obligation for pension plans with a projected benefit obligation in excess of plan assets:

Accumulated Benefit Obligation

Funded Status

Fair Value of Plan Assets
Projected Benefit Obligation

Funded Status of Underfunded Pension Plans at End of Year

December 31,

2023

2022

19.1  $ 

22.9 

—  $ 

19.1 

(19.1)  $ 

— 

22.9 

(22.9) 

$ 

$ 

$ 

The following table sets forth the year end accumulated benefit obligation, projected benefit obligation and fair value of plan 
assets for pension plans with plan assets in excess of the projected benefit obligation:

Accumulated Benefit Obligation

Funded Status

Fair Value of Plan Assets
Projected Benefit Obligation

Funded Status of Overfunded Pension Plans at End of Year

December 31,

2023

2022

1,371.8  $ 

1,393.8 

1,426.8  $ 
1,382.7 

44.1  $ 

1,422.8 
1,404.5 
18.3 

$ 

$ 

$ 

Our pension plans were overfunded, in aggregate, by $25.0 million at December 31, 2023 compared to being underfunded by 
$4.6 million at December 31, 2022. The improvement in the funded status was primarily due to favorable asset returns offset by 
a decrease in discount rates. We contributed $3.1 million and $2.7 million to our pension plans in 2023 and 2022, respectively. 

Our other postretirement benefit plans were underfunded, in aggregate by $232.3 million and $224.1 million at December 31, 
2023 and 2022, respectively. The decline in funded status was primarily due to increased health care trend rates and discount 
rates, which was partially offset by actual return on plan assets exceeding expected return. We contributed $23.4 million and 
$21.3 million to our other postretirement benefit plans in 2023 and 2022, respectively. 

In  2023  and  2022,  our  NiSource  Pension  Restoration  and  Columbia  Energy  Group  pension  plans  paid  lump  sum  payouts  in 
excess of the respective plan's service cost plus interest cost, thereby meeting the requirement for settlement accounting. We 
recorded settlement charges of $9.2 million and $12.4 million in 2023 and 2022, respectively. Net periodic pension benefit cost 
increased  by  $5.7  million  in  December  31,  2022  as  the  result  of  the  remeasurement.  In  2023,  no  remeasurement  occurred 
related to lump sum payouts.

104

 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

The  following  table  provides  the  key  assumptions  that  were  used  to  calculate  the  pension  and  other  postretirement  benefits 
obligations for our various plans as of December 31:

Weighted-average assumptions to Determine Benefit 
Obligation

Discount Rate

Rate of Compensation Increases

Interest Crediting Rates

Health Care Trend Rates
Trend for Next Year

Ultimate Trend

Year Ultimate Trend Reached

Pension Benefits

Other Postretirement   
Benefits

2023

2022

2023

2022

 4.95 %

 4.00 %

 4.00 %

N/A

N/A

N/A

 5.14 %

 4.00 %

 4.00 %

N/A

N/A

N/A

 4.98 %

 5.17 %

N/A

N/A

 8.84 %

 4.75 %

2032

N/A

N/A

 6.69 %

 4.75 %

2032

We expect to make contributions of approximately $2.2 million to our pension plans and approximately $23.1 million to our 
postretirement medical and life plans in 2024.

The following table provides benefits expected to be paid in each of the next five fiscal years, and in the aggregate for the five 
fiscal  years  thereafter.  The  expected  benefits  are  estimated  based  on  the  same  assumptions  used  to  measure  our  benefit 
obligation at the end of the year and include benefits attributable to the estimated future service of employees:

(in millions)
Year(s)
2024
2025
2026
2027
2028
2028-2032

Pension 
Benefits

Other
Postretirement 
Benefits

Federal
Subsidy 
Receipts

$ 

144.8  $ 
141.8 
135.0 
129.4 
125.1 
548.0 

38.1  $ 
38.1 
37.5 
37.4 
37.0 
176.0 

0.2 
0.2 
0.2 
0.2 
0.2 
0.9 

The following table provides the components of the plans’ actuarially determined net periodic benefits cost for each of the three 
years ended December 31, 2023, 2022 and 2021:

(in millions)
Components of Net Periodic Benefit 
(Income) Cost(1)
Service cost
Interest cost

Expected return on assets

Amortization of prior service cost (credit)
Recognized actuarial loss

Pension Benefits
2022

2023

2021

2023

Other Postretirement
Benefits
2022

2021

$ 

20.5  $ 

27.8  $ 

30.2  $ 

5.1  $ 

6.5  $ 

68.4 

(94.5)   
0.1 
33.7 

40.5 

(90.8)   
0.1 
20.3 

31.4 

(101.6)   
0.1 
21.7 

21.8 

(15.1)   
(2.1)   
3.3 

12.0 

(16.2)   
(2.2)   
2.6 

6.2 

9.9 

(15.3) 
(2.2) 
4.6 

Settlement loss
Total Net Periodic Benefits (Income) 
3.2 
Cost
(1)Service  cost  is  presented  in  "Operation  and  maintenance"  on  the  Statements  of  Consolidated  Income.  Non-service  cost  components  are  presented  within 
"Other, net."

37.4  $ 

10.3  $ 

13.0  $ 

(6.8)  $ 

2.7  $ 

11.4 

12.4 

9.2 

— 

— 

— 

$ 

105

 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

The  following  table  provides  the  key  assumptions  that  were  used  to  calculate  the  net  periodic  benefits  cost  for  our  various 
plans:

Pension Benefits
2022

2023

2021

 Other Postretirement
Benefits
2022

2021

2023

Weighted-average Assumptions to 
Determine Net Periodic Benefit Cost

Discount rate - service cost
Discount rate - interest cost

Expected Long-Term Rate of Return on 
Plan Assets
Rate of Compensation Increases
Interest Crediting Rates

 5.25 %

 5.06 %

 7.00 %
 4.00 %
 4.00 %

 3.08 %

 2.11 %

 4.80 %
 4.00 %
 4.00 %

 2.81 %

 1.57 %

 5.20 %
 4.00 %
 4.00 %

 5.30 %

 5.07 %

 6.96 %
N/A
N/A

 3.21 %

 2.24 %

 5.72 %
N/A
N/A

 3.00 %

 1.73 %

 5.50 %
N/A
N/A

We assumed a 7.00% and 6.96% rate of return on pension and other postretirement plan assets, respectively, for our calculation 
of 2023 pension benefits and other postretirement benefits costs. These rates were primarily based on asset mix and historical 
rates of return and were adjusted in 2023 due to changes in asset allocation and projected market returns.

The following table provides other changes in plan assets and projected benefit obligations recognized in other comprehensive 
income or regulatory asset or liability:

(in millions)
Other Changes in Plan Assets and Projected Benefit Obligations 
Recognized in Other Comprehensive Income or Regulatory Asset 
or Liability

Net prior service cost 
Net actuarial (gain) loss 
Settlements/curtailments
Less: amortization of prior service cost
Less: amortization of net actuarial loss

Total Recognized in Other Comprehensive Income or Regulatory 
Asset or Liability
Amount Recognized in Net Periodic Benefits Cost and Other 
Comprehensive Income or Regulatory Asset or Liability

17.  

Share-Based Compensation

Pension Benefits
2022
2023

Other Postretirement
Benefits

2023

2022

$ 

$ 

$ 

—  $ 
(20.9)   
(9.2)   
(0.1)   
(33.7)   

0.2  $ 

158.9 
(12.4)   
(0.1)   
(20.3)   

3.3  $ 
16.0 
— 
2.1 
(3.3)   

2.1 
(21.8) 
— 
2.2 
(2.6) 

(63.9)  $ 

126.3  $ 

18.1  $ 

(20.1) 

(26.5)  $ 

136.6  $ 

31.1  $ 

(17.4) 

Prior to May 19, 2020, we issued share-based compensation to employees and non-employee directors under the NiSource Inc. 
2010  Omnibus  Plan  ("2010  Omnibus  Plan"),  which  was  most  recently  approved  by  stockholders  at  the  Annual  Meeting  of 
Stockholders held on May 12, 2015. The 2010 Omnibus Plan provided for awards to employees and non-employee directors of 
incentive and nonqualified stock options, stock appreciation rights, restricted stock, restricted stock units, performance shares, 
performance  units,  cash-based  awards  and  other  stock-based  awards  and  superseded  the  Director  Stock  Incentive  Plan 
(“Director Plan”) with respect to grants made after the effective date of the 2010 Omnibus Plan.

The stockholders approved and adopted the NiSource Inc. 2020 Omnibus Incentive Plan ("2020 Omnibus Plan") at the Annual 
Meeting of Stockholders held on May 19, 2020. The 2020 Omnibus Plan provides for awards to employees and non-employee 
directors  of  incentive  and  nonqualified  stock  options,  stock  appreciation  rights,  restricted  stock,  restricted  stock  units, 
performance  shares,  performance  units,  cash-based  awards  and  other  stock-based  awards  and  supersedes  the  2010  Omnibus 
Plan with respect to grants made after the effective date of the 2020 Omnibus Plan.

The 2020 Omnibus Plan provides that the number of shares of common stock of NiSource available for awards is 10,000,000 
plus  the  number  of  shares  subject  to  outstanding  awards  that  expire  or  terminate  for  any  reason  that  were  granted  under  the 

106

 
  
  
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

2020 Omnibus Plan, the 2010 Omnibus Plan or any other equity plan under which awards were outstanding as of May 19, 2020. 
At December 31, 2023, there were 8,023,671 shares available for future awards under the 2020 Omnibus Plan.

We recognized stock-based employee compensation expense of $23.9 million, $19.0 million and $16.7 million, during 2023, 
2022  and  2021,  respectively,  as  well  as  related  tax  benefits  of  $7.7  million,  $3.6  million  and  $4.0  million,  respectively.  We 
recognized  related  excess  tax  benefit  from  the  distribution  of  vested  share-based  employee  compensation  of  $2.9  million  in 
2023 and $0.4 million respectively, in 2022 and 2021.

As of December 31, 2023, the total remaining unrecognized compensation cost related to non-vested awards amounted to $20.8 
million, which will be amortized over the weighted-average remaining requisite service period of 1.6 years.

Restricted Stock Units and Restricted Stock. We granted 500,968, 477,292, and 285,755 restricted stock units and shares of 
restricted stock to employees, subject to service conditions in 2023, 2022, and 2021, respectively. The total grant date fair value 
of the restricted stock units and shares of restricted stock during 2023, 2022, and 2021, respectively, was $13.7 million, $12.5 
million, and $5.7 million. The grant date fair value for the 2023 awards is based on the average market price of our common 
stock at the date of each grant. For the years ended 2022 and 2021, the grant date fair value is based on the average market price 
of our common stock at the date of each grant less the present value of any dividends not received during the vesting period. 
The awards are expensed over the vesting period which is generally three years. As of December 31, 2023, 464,725, 385,062, 
and 158,797 non-vested restricted stock units and shares of restricted stock granted in 2023, 2022, and 2021, respectively, were 
outstanding. Our non-vested restricted stock units have a non-forfeitable right to dividend equivalents, with immaterial amounts 
paid in the periods ending December 31, 2023 and 2022. See Note 5, "Earnings Per Share," for further discussion. 

If  an  employee  terminates  employment  before  the  service  conditions  lapse  under  the  2021,  2022  or  2023  awards  due  to 
(1) retirement or disability (as defined in the award agreement), or (2) death, the service conditions will lapse on the date of 
such  termination  with  respect  to  a  pro  rata  portion  of  the  restricted  stock  units  and  shares  of  restricted  stock  based  upon  the 
percentage of the service period satisfied between the grant date and the date of the termination of employment. In the event of 
a  change  in  control  (as  defined  in  the  award  agreement),  all  unvested  shares  of  restricted  stock  and  restricted  stock  units 
awarded will immediately vest upon termination of employment occurring in connection with a change in control. Termination 
due to any other reason will result in all unvested shares of restricted stock and restricted stock units awarded being forfeited 
effective on the employee’s date of termination.

A summary of our restricted stock unit award transactions for the year ended December 31, 2023 is as follows:

(shares)
Non-vested at December 31, 2022

Granted
Forfeited

Vested

Non-vested at December 31, 2023

Restricted Stock
Units

Weighted Average
Award Date Fair 
Value Per Unit ($)
24.48 
27.38 
25.32 
24.87 
25.71 

798,515 
500,968 
(54,171)   
(178,396)   
1,066,916 

Employee Performance Shares. We granted 649,088 performance shares subject to service, performance and/or market-based 
vesting  conditions  in  2023.  The  performance  conditions  for  these  shares  are  based  on  the  achievement  of  one  non-GAAP 
financial measure, achievement of relative total shareholder return, and other operational metrics, which make up 50%, 25%, 
and 25% of the issued awards respectively. 

The financial measure is cumulative net operating earnings per share ("NOEPS"), which we define as income from continuing 
operations adjusted for certain items. Relative total shareholder return, a market-based vesting condition, which we define as 
the annualized growth in dividends and share price of a share of our common stock (calculated using a 20 trading day average 
of our closing price over the performance period, approximately) compared to the total shareholder return of a predetermined 
peer group of companies. A relative shareholder return result within the first quartile will result in an increase in the NOEPS 
shares of 25%, while a relative shareholder return result within the fourth quartile will result in a decrease of 25%. A Monte 
Carlo analysis was used to value the portion of these awards dependent on the market-based vesting condition. The grant date 
fair value of the NOEPS shares is based on the closing stock price of our common stock at the date of each grant, which will be 

107

 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

expensed over the requisite service period of three years. The conditions for the remaining performance-based awards are based 
on  operational  goals  of  economic  inclusion  (5%),  OPEX  Index  (10%),  Employee  Engagement  Index  Score  (5%),  and 
Environmental GHG Reduction (5%). The OPEX Index is further defined by goals related to risk mitigation and modernization 
of our infrastructure. See table below for further details on these awards.

In 2022, we granted 566,086 performance shares subject to service, performance and/or market-based vesting conditions. The 
performance conditions for these shares are based on the achievement of one non-GAAP financial measure, and/or achievement 
of relative total shareholder return, outlined above. The number of shares that are eligible to vest based on these performance 
conditions  are  adjusted  based  on  performance  of  the  magnifier  framework  for  2022  awards,  outlined  above.  The  operational 
magnifier framework for 2022 performance shares consists of three areas of focus, including safety, environment, and DE&I, 
representing 20%, 10% and 10%, respectively.

We granted 973,885 performance shares subject to service, performance and/or market-based vesting conditions in 2021. With 
respect  to  390,041  performance  shares  granted,  the  performance  conditions  are  based  on  the  achievement  of  relative  total 
shareholder  return.  The  number  of  shares  that  are  eligible  to  vest  based  on  the  Company's  relative  total  shareholder  return 
performance will be adjusted based on a performance magnifier related to safety. A Monte Carlo analysis was used to value the 
portion  of  these  awards  dependent  on  the  market-based  vesting  condition.  The  grant  date  fair  value  of  the  NOEPS  shares  is 
based  on  the  closing  stock  price  of  our  common  stock  at  the  date  of  each  grant,  which  will  be  expensed  over  the  requisite 
service period of three years. See table below for further details on these awards.

With  respect  to  the  remaining  582,944  performance  shares  granted  in  2021,  the  performance  conditions  are  based  on  the 
achievement  of  one  non-GAAP  financial  measure,  and/or  achievement  of  relative  total  shareholder  return.  The  number  of 
shares that are eligible to vest based on these performance conditions will be adjusted based on performance of the magnifier 
framework for 2021 awards. The operational magnifier framework for 2021 performance shares consists of three areas of focus 
including safety, environment, and DE&I, representing 20%, 10% and 10%, respectively.

The following table presents details of the performance awards described above.

Award Year

Service Conditions 
Lapse date

Performance Period Award Conditions

Shares outstanding 
at 12/31/2023
(shares)

Grant Date Fair 
Value
(in millions)

2023

2/28/2026

01/01/2023-
12/31/2025

2022

2/28/2025

01/01/2022-
12/31/2024

2021

2/28/2024

01/01/2021-
12/31/2023

2/28/2024

01/01/2021- 
12/31/2023

Non-GAAP 
Financial and 
Operational 
Measures
Relative Total 
Shareholder Return  

Non-GAAP 
Financial Measure

Relative Total 
Shareholder Return  
Non-GAAP 
Financial Measure

Relative Total 
Shareholder Return  
Relative Total 
Shareholder Return  

488,515  $ 

162,815  $ 

235,120  $ 

235,120  $ 

186,427  $ 

186,427  $ 

87,268  $ 

13.3 

5.4 

7.4 

10.6 

6.5 

6.7 

3.2 

108

 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

A summary of our performance award transactions for the year ended December 31, 2023 is as follows:

(shares)
Non-vested at December 31, 2022

Granted

Forfeited

Vested

Non-vested at December 31, 2023

Performance
Awards

Weighted Average
Grant Date Fair 
Value Per Unit ($)

1,505,740 

649,088 
(53,786)   

(542,533)   
1,558,509 

26.10 

28.87 
28.29 

22.21 
28.01 

Non-employee  Director  Awards.  As  of  May  19,  2020,  awards  to  non-employee  directors  may  be  made  only  under  the  2020 
Omnibus  Plan.  Currently,  restricted  stock  units  are  granted  annually  to  non-employee  directors,  subject  to  a  non-employee 
director’s election to defer receipt of such restricted stock unit award. The non-employee director’s annual award of restricted 
stock units vest on the first anniversary of the grant date subject to special pro-rata vesting rules in the event of retirement or 
disability  (as  defined  in  the  award  agreement),  or  death.  The  vested  restricted  stock  units  are  payable  as  soon  as  practicable 
following  vesting  except  as  otherwise  provided  pursuant  to  the  non-employee  director’s  deferral  election.  Certain  restricted 
stock units remain outstanding from the 2010 Omnibus Plan and the Director Plan. All such awards are fully vested and shall be 
distributed to the directors upon their separation from the Board.

As  of  December  31,  2023,  272,609  restricted  stock  units  are  outstanding  to  non-employee  directors  under  either  the  2020 
Omnibus  Plan,  the  2010  Omnibus  Plan  or  the  Director  Plan.  Of  this  amount,  67,611  restricted  stock  units  are  unvested  and 
expected to vest. 

401(k) Match, Profit Sharing and Company Contribution. Eligible salaried employees hired after January 1, 2010 and hourly 
and union employees hired after January 1, 2013 receive a non-elective company contribution of 4.5% of eligible pay payable 
in  cash  or  shares  of  NiSource  common  stock.  We  also  have  a  voluntary  401(k)  savings  plan  covering  eligible  union  and 
nonunion employees that allows for periodic discretionary matches as a percentage of each participant’s contributions payable 
in  cash  or  shares.  Further,  we  have  a  retirement  savings  plan  that  provides  for  discretionary  profit  sharing  contributions  to 
eligible employees. For the years ended December 31, 2023, 2022 and 2021, we recognized 401(k) match, profit sharing and 
non-elective contribution expense of $50.7 million, $39.1 million and $39.1 million, respectively.

18. 

Leases

Lease Descriptions. We are the lessee for substantially all of our leasing activity, which includes operating and finance leases 
for corporate and field offices, railcars, land, and fleet vehicles. Our corporate and field office leases and certain land leases 
have remaining terms between 1 and 38 years with options to renew the leases for up to 35 years. We lease railcars to transport 
coal  to  and  from  our  electric  generation  facilities  in  Indiana.  Our  railcars  are  specifically  identified  in  the  lease  agreements 
which have remaining lease terms between 1 and 4 years with options to renew for 1 year. Our fleet vehicles include trucks, 
trailers and equipment that have been customized specifically for use in the utility industry. We lease fleet vehicles for 1 year 
terms, after which we have the option to extend on a month-to-month basis or terminate with written notice. We elected the 
short-term lease practical expedient, allowing us to not recognize ROU assets or lease liabilities for all leases with a term of 12 
months  or  less.  ROU  assets  and  liabilities  on  our  Consolidated  Balance  Sheets  do  not  include  obligations  for  possible  fleet 
vehicle lease renewals beyond the initial lease term. While we have the ability to renew these leases beyond the initial term, we 
are not reasonably certain to do so. 

We  have  not  provided  material  residual  value  guarantees  for  our  leases,  nor  do  our  leases  contain  material  restrictions  or 
covenants. Lease contracts containing renewal and termination options are mostly exercisable at our sole discretion. Certain of 
our  real  estate  and  railcar  leases  include  renewal  periods  in  the  measurement  of  the  lease  obligation  if  we  have  deemed  the 
renewals reasonably certain to be exercised.

With  respect  to  service  contracts  involving  the  use  of  assets,  if  we  have  the  right  to  direct  the  use  of  the  asset  and  obtain 
substantially all economic benefits from the use of an asset, we account for the service contract as a lease. Unless specifically 
provided to us by the lessor, we utilize NiSource's collateralized incremental borrowing rate commensurate to the lease term as 
the  discount  rate  for  all  of  our  leases.  ASC  842  permits  a  lessee,  by  class  of  underlying  asset,  not  to  separate  nonlease 

109

 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

components from lease components. Our policy is to apply this expedient for our leases of fleet vehicles, IT assets and railcars 
when calculating their respective lease liabilities.

Lease  costs  for  the  years  ended  December  31,  2023  and  December  31,  2022  are  presented  in  the  table  below.  These  costs 
include  both  amounts  recognized  in  expense  and  amounts  capitalized  as  part  of  the  cost  of  another  asset.  Income  statement 
presentation for these costs (when ultimately recognized on the income statement) is also included:

Year Ended December 31, (in millions)
Finance lease cost

Income Statement Classification

2023

2022

Amortization of right-of-use assets

Depreciation and amortization

Interest on lease liabilities

Interest expense, net

Total finance lease cost
Operating lease cost

Total lease cost

Operation and maintenance

$ 

$ 

32.0  $ 

8.6 
40.6 
11.3 

51.9  $ 

Our right-of-use assets and liabilities are presented in the following lines on the Consolidated Balance Sheets:

At December 31, (in millions) Balance Sheet Classification
Assets

2023

2022

Finance leases
Operating leases
Total leased assets
Liabilities
Current

Finance leases
Operating leases

Noncurrent

Finance leases
Operating leases
Total lease liabilities

Net Property, Plant and Equipment
Deferred charges and other

Current portion of long-term debt
Other accruals

Long-term debt, excluding amounts due within one year
Other noncurrent liabilities

$ 

$ 

$ 

$ 

184.3  $ 
32.9 
217.2 

23.8 
8.3 

181.6 
25.8 
239.5  $ 

Other pertinent information related to leases was as follows:

Year Ended December 31, (in millions)
Cash paid for amounts included in the measurement of lease liabilities

2023

2022

Operating cash flows used for finance leases

Operating cash flows used for operating leases
Financing cash flows used for finance leases

Right-of-use assets obtained in exchange for lease obligations

Finance leases
Operating leases

$ 

$ 

9.3  $ 

11.1 
33.1 

64.5 
5.6  $ 

31.9 

8.5 
40.4 
10.4 

50.8 

153.4 
35.7
189.1

30.0
4.8

144.7
31.9
211.4 

8.6 

10.3
30.3

19.3
8.8 

Weighted-average remaining lease term (years)

Finance leases
Operating leases

Weighted-average discount rate

Finance leases
Operating leases

110

December 31, 2023

December 31, 2022

16.4
6.7

 5.5 %
 4.3 %

9.9
7.7

 5.1 %
 4.0 %

 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

Maturities of our lease liabilities as of December 31, 2023 were as follows:

As of December 31, 2023, (in millions)
2024
2025
2026
2027
2028
Thereafter

Total lease payments

Less: Imputed interest

Total

Reported as of December 31, 2023
Short-term lease liabilities
Long-term lease liabilities
Total lease liabilities

Total

Finance Leases

Operating Leases

$ 

$ 

$ 

44.4  $ 
36.6   
31.1   
25.2   
22.5   
201.7   
361.5   
(122.0)  
239.5  $ 

32.1   
207.4   
239.5  $ 

34.8  $ 
30.7   
25.7   
20.6   
19.3   
190.7   
321.8   
(116.4)  
205.4  $ 

23.8   
181.6   
205.4  $ 

9.6 
5.9 
5.4 
4.6 
3.2 
11.0 
39.7 
(5.6) 
34.1 

8.3 
25.8 
34.1 

111

 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

19. 

Other Commitments and Contingencies

A. 
Contractual  Obligations.  We  have  certain  contractual  obligations  requiring  payments  at  specified  periods.  The 
obligations  include  long-term  debt,  lease  obligations,  energy  commodity  contracts  and  obligations  for  various  services 
including pipeline capacity and outsourcing of IT services. The total contractual obligations in existence at December 31, 2023 
and their maturities were:

(in millions)
Long-term debt (1)

Interest payments on long-term debt

Finance leases(2)

Operating leases(3)

Energy commodity contracts

Service obligations:

Pipeline service obligations

IT service obligations

Other liabilities(4)

Total contractual obligations

Total

2024

2025

2026

2027

2028

After

$  10,955.0  $ 

—  $ 

1,260.0  $ 

—  $ 

1,090.0  $ 

1,055.0  $ 

7,550.0 

6,017.8 

321.8 

39.7 

153.9 

2,196.6 

161.8 

98.3 

431.1 

34.8 

9.6 

114.7 

652.0 

83.6 

62.8 

431.1 

30.7 

5.9 

39.2 

485.7 

57.2 

5.8 

418.5 

25.7 

5.4 

— 

406.3 

16.7 

5.2 

399.1 

20.6 

4.6 

— 

349.0 

19.3 

3.2 

— 

388.7 

162.3 

4.3 

5.2 

— 

5.2 

3,989.0 

190.7 

11.0 

— 

101.6 

— 

14.1 

$  19,944.9  $ 

1,388.6  $ 

2,315.6  $ 

877.8  $ 

1,912.5  $ 

1,594.0  $  11,856.4 

(1) Long-term debt balance excludes unamortized issuance costs and discounts of $81.1 million. 
(2) Finance lease payments shown above are inclusive of interest totaling $116.4 million.  
(3) Operating lease payments shown above are inclusive of interest totaling $5.6 million. Operating lease balances do not include obligations for possible fleet 
vehicle lease renewals beyond the initial lease term. While we have the ability to renew these leases beyond the initial term, we are not reasonably certain to do 
so as they are renewed month-to-month after the first year. 
(4)Other  liabilities  shown  above  are  primarily  related  to  the  Indiana  Crossroads  Solar  and  Dunns  Bridge  I  Developer  payments  due  in  2024  and  ongoing 
maintenance service agreements for our renewable joint ventures.

Purchase  and  Service  Obligations.  We  have  entered  into  various  purchase  and  service  agreements  whereby  we  are 
contractually obligated to make certain minimum payments in future periods. Our purchase obligations are for the purchase of 
physical quantities of natural gas, electricity and coal. Our service agreements encompass a broad range of business support and 
maintenance functions which are generally described below.

Our subsidiaries have entered into various energy commodity contracts to purchase physical quantities of natural gas, electricity 
and coal. These amounts represent the minimum quantity of these commodities we are obligated to purchase at both fixed and 
variable  prices.  To  the  extent  contractual  purchase  prices  are  variable,  obligations  disclosed  in  the  table  above  are  valued  at 
market prices as of December 31, 2023.

NIPSCO  has  power  purchase  arrangements  representing  a  total  of  700  MW  of  wind  power,  with  contracts  expiring  between 
2024  and  2040.  No  minimum  quantities  are  specified  within  these  agreements  due  to  the  variability  of  electricity  generation 
from  wind,  so  no  amounts  related  to  these  contracts  are  included  in  the  table  above.  Upon  early  termination  of  one  of  these 
agreements by NIPSCO for any reason (other than material breach by the counterparties), NIPSCO may be required to pay a 
termination charge that could be material depending on the events giving rise to termination and the timing of the termination. 

We have pipeline service agreements that provide for pipeline capacity, transportation and storage services. These agreements, 
which have expiration dates ranging from 2024 to 2038, require us to pay fixed monthly charges. 

NIPSCO  has  contracts  with  three  major  rail  operators  providing  coal  transportation  services  for  which  there  are  certain 
minimum payments. These service contracts extend for various periods through 2025.

We have executed agreements with multiple IT service providers. The agreements extend for various periods through 2028. 

112

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

B. 
  Guarantees and Indemnities. We and certain of our subsidiaries enter into various agreements providing financial or 
performance  assurance  to  third  parties  on  behalf  of  certain  subsidiaries  as  part  of  normal  business.  Such  agreements  include 
guarantees and stand-by letters of credit. These agreements are entered into primarily to support or enhance the creditworthiness 
otherwise attributed to a subsidiary on a stand-alone basis, thereby facilitating the extension of sufficient credit to accomplish 
the subsidiaries’ intended commercial purposes. At December 31, 2023 and 2022, we issued stand-by letters of credit of $9.9 
million and $10.2 million, respectively, for the benefit of third parties. 

We provide guarantees related to our future performance under BTAs for our renewable generation projects. At December 31, 
2023 and 2022, our guarantees for multiple BTAs totaled $646.1 million and $841.6 million, respectively. The amount of each 
guaranty will decrease upon the substantial completion of the construction of the facilities. See “- E. Other Matters - Generation 
Transition,” below for more information.

C. 
Legal Proceedings. From time to time, various legal and regulatory claims and proceedings are pending or threatened 
against the Company and its subsidiaries. While the amounts claimed may be substantial, the Company is unable to predict with 
certainty the ultimate outcome of such claims and proceedings. The Company establishes reserves whenever it believes it to be 
appropriate  for  pending  litigation  matters.  However,  the  actual  results  of  resolving  the  pending  litigation  matters  may  be 
substantially  higher  than  the  amounts  reserved.  If  one  or  more  other  matters  were  decided  against  us,  the  effects  could  be 
material to our results of operations in the period in which we would be required to record or adjust the related liability and 
could  also  be  material  to  our  cash  flows  in  the  periods  that  we  would  be  required  to  pay  such  liability.  Due  to  the  inherent 
uncertainty of litigation, there can be no assurance that the resolution of any particular claim, proceeding or investigation would 
not have a material adverse effect on our results of operations, financial position or liquidity.

FERC  Investigation.  In  April  2022,  NIPSCO  was  notified  that  the  FERC  Office  of  Enforcement  (“OE”)  was  conducting  an 
investigation of an industrial customer for allegedly manipulating the MISO Demand Response (“DR”) market. On January 4, 
2024, FERC issued an Order approving a Stipulation and Consent Agreement (the "FERC Stipulation and Consent Agreement") 
which  resolved  the  FERC  OE  investigation.  Under  the  FERC  Stipulation  and  Consent  Agreement,  neither  NIPSCO  nor  the 
industrial  customer  admitted  or  denied  any  wrongdoing.  Further,  under  the  FERC  Stipulation  and  Consent  Agreement,  the 
industrial customer is to disgorge $48.5 million and NIPSCO is to disgorge $7.7 million. The full amount of disgorgements will 
be returned to customers. NIPSCO has recovered more than 50% of its costs.

Other  Claims  and  Proceedings.  We  are  also  party  to  certain  other  claims,  regulatory  and  legal  proceedings  arising  in  the 
ordinary course of business in each state in which we have operations, and based upon an investigation of these matters and 
discussion  with  legal  counsel,  we  believe  the  ultimate  outcome  of  such  other  legal  proceedings  to  be  individually,  or  in 
aggregate, not material at this time.

D. 
Environmental Matters. Our operations are subject to environmental statutes and regulations related to air quality, 
water  quality,  hazardous  waste  and  solid  waste.  We  believe  that  we  are  in  substantial  compliance  with  the  environmental 
regulations currently applicable to our operations.

It is management's continued intent to address environmental issues in cooperation with regulatory authorities in such a manner 
as to achieve mutually acceptable compliance plans. However, there can be no assurance that fines and penalties will not be 
incurred.  Management  expects  the  majority  of  environmental  assessment  and  remediation  costs  and  asset  retirement  costs, 
further described below, to be recoverable through rates. See Note 12, "Regulatory Matters," for additional detail.

As  of  December  31,  2023  and  2022,  we  had  recorded  a  liability  of  $80.0  million  and  $86.5  million,  respectively,  to  cover 
environmental remediation at various sites. This liability is included in "Other accruals" and "Other noncurrent liabilities" in the 
Consolidated Balance Sheets. We recognize costs associated with environmental remediation obligations when the incurrence 
of such costs is probable and the amounts can be reasonably estimated. The original estimates for remediation activities may 
differ materially from the amount ultimately expended. The actual future expenditures depend on many factors, including laws 
and regulations, the nature and extent of impact and the method of remediation. These expenditures are not currently estimable 
at some sites. We periodically adjust our liability as information is collected and estimates become more refined. See Note 11, 
"Asset Retirement Obligations," for a discussion of all obligations, including those discussed below. 

CERCLA. Our subsidiaries are potentially responsible parties at waste disposal sites under the CERCLA and similar state laws. 
Under CERCLA, each potentially responsible party can be held jointly, severally and strictly liable for the remediation costs as 
the  EPA,  or  state,  can  allow  the  parties  to  pay  for  remedial  action  or  perform  remedial  action  themselves  and  request 

113

 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

reimbursement  from  the  potentially  responsible  parties.  Our  affiliates  have  retained  CERCLA  environmental  liabilities, 
including remediation liabilities, associated with certain current and former operations. At this time, we cannot estimate the full 
cost of remediating properties that have not yet been investigated, but it is possible that the future costs could be material to the 
Consolidated Financial Statements.

MGP. We maintain a program to identify and investigate former MGP sites where Gas Distribution Operations subsidiaries or 
predecessors may have liability. The program has identified 53 such sites where liability is probable. Remedial actions at many 
of  these  sites  are  being  overseen  by  state  or  federal  environmental  agencies  through  consent  agreements  or  voluntary 
remediation agreements.

We utilize a probabilistic model to estimate our future remediation costs related to MGP sites. The model was prepared with the 
assistance of a third party and incorporates our experience and general industry experience with remediating MGP sites. We 
complete an annual refresh of the model in the second quarter of each fiscal year. No material changes to the estimated future 
remediation costs were noted as a result of the refresh completed as of June 30, 2023. Our total estimated liability related to the 
facilities subject to remediation was $73.7 million and $81.0 million at December 31, 2023 and 2022, respectively. The liability 
represents  our  best  estimate  of  the  probable  cost  to  remediate  the  MGP  sites.  We  believe  that  it  is  reasonably  possible  that 
remediation costs could vary by as much as $15.1 million in addition to the costs noted above. Remediation costs are estimated 
based on the best available information, applicable remediation standards at the balance sheet date, and experience with similar 
facilities.

CCRs. NIPSCO continues to meet the compliance requirements established by the EPA for the regulation of CCRs. The CCR 
rule requirements currently in effect required revisions to previously recorded legal obligations associated with the retirement of 
certain NIPSCO facilities. The actual asset retirement costs related to the CCR rule may vary substantially from the estimates 
used to record the increased asset retirement obligation due to the uncertainty about the requirements that will be established by 
environmental authorities, compliance strategies that will be used and the preliminary nature of available data used to estimate 
costs. As allowed by the rule, NIPSCO will continue to collect data over time to determine the specific compliance solutions 
and associated costs and, as a result, the actual costs may vary. 

E.     Other Matters

Generation  Transition.  NIPSCO  has  executed  several  BTAs  with  developers  to  construct  renewable  generation  facilities. 
NIPSCO  has  received  IURC  approval  for  all  of  its  BTAs  and  PPAs.  In  addition  to  IURC  approval,  NIPSCO's  purchase 
obligation under certain BTAs is dependent on timely completion of construction and either payment of the required purchase 
price or successful execution by NIPSCO of an agreement with a tax equity partner. NIPSCO and the tax equity partner, for 
each  respective  BTA,  are  obligated  to  make  cash  contributions  to  the  JV  that  acquires  the  project  at  the  date  construction  is 
substantially  complete.  Certain  agreements  require  NIPSCO  to  make  partial  payments  upon  the  developer's  completion  of 
significant construction milestones. Once the tax equity partner has earned its negotiated rate of return and we have reached the 
agreed upon contractual date, NIPSCO has the option to purchase at fair market value the remaining interest in the JV from the 
tax  equity  partner.  On  January  17,  2024,  the  IURC  approved  the  full  ownership  of  Cavalry  and  Dunns  Bridge  II  which  will 
allow those BTAs to be executed through direct ownership. On November 22, 2023, Gibson transitioned from a PPA to a BTA.

NIPSCO  Minority  Interest  Transaction.  On  December  31,  2023,  pursuant  to  the  terms  of  the  BIP  Purchase  Agreement  and 
simultaneously  with  the  closing  of  the  NIPSCO  Minority  Interest  Transaction,  Blackstone,  NIPSCO  Holdings  I  NIPSCO 
Holdings  II  and  NiSource  entered  into  an  Amended  and  Restated  Limited  Liability  Company  Agreement  (the  "LLC 
Agreement")  of  NIPSCO  Holdings  II.  Specifically,  under  the  terms  of  the  LLC  Agreement,  Blackstone  will  provide  up  to 
$250 million in additional capital contributions over a three-year period after the closing, which the obligation is backed by an 
Equity Commitment Letter from an affiliate of Blackstone. Under the LLC Agreement, Blackstone is entitled to appoint two 
directors  to  the  board  of  directors  of  NIPSCO  Holdings  II  (the  “Board”)  so  long  as  Blackstone  (together  with  any  approved 
affiliate)  holds  at  least  a  17.5%  percentage  interest  (as  defined  in  the  LLC  Agreement).  In  connection  with  the  closing, 
Blackstone appointed two directors to the Board, such that the Board is now comprised of seven directors, two appointed by 
Blackstone and five appointed by NiSource. The LLC Agreement also contains certain investor protections, including, among 
other  things,  requiring  Blackstone  approval  for  Holdings  II  to  take  certain  major  actions.  In  addition,  the  LLC  Agreement 
contains  certain  terms  regarding  transfer  rights  and  other  obligations  applicable  to  both  Blackstone  and  NiSource.  The  LLC 
Agreement  establishes,  among  other  things,  governance  rights,  exit  rights,  requirements  for  additional  capital  contributions, 
mechanics for distributions, and other arrangements for Holdings II from and following the closing. 

114

 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

On  January  31,  2024,  BIP  transferred  a  4.5%  equity  interest  in  NIPSCO  Holdings  II  to  BIP  Blue  Buyer  VCOC  L.L.C.,  a 
Delaware limited liability company and also an affiliate of Blackstone. Effective upon the closing of this transfer, the members 
of  NIPSCO  Holdings  II  entered  into  a  Second  Amended  and  Restated  Limited  Liability  Company  Operating  Agreement  of 
NIPSCO Holdings II (the "Amended LLC Agreement"). The two affiliates of Blackstone must vote their equity holdings under 
the Amended LLC Agreement as one investor. 

Refer to Note 4, "Noncontrolling Interest," for detailed discussion of accounting for the NIPSCO Minority Interest Transaction. 

20.  

Accumulated Other Comprehensive Loss

The following table displays the activity of Accumulated Other Comprehensive Loss, net of tax:

(in millions)

Balance as of January 1, 2021

Gains and 
Losses on 
Securities(1)

Gains and Losses 
on Cash Flow 
Hedges(1)

Pension and 
OPEB Items(1)

Accumulated
Other
Comprehensive
Loss(1)

$ 

6.0  $ 

(147.9)  $ 

(14.8)  $ 

(156.7) 

Other comprehensive (loss) income before reclassifications

Amounts reclassified from accumulated other comprehensive loss

Net current-period other comprehensive (loss) income

(3.5) 

(0.4) 

(3.9) 

25.3 

0.1 

25.4 

6.6 

1.8 

8.4 

28.4 

1.5 

29.9 

Balance as of December 31, 2021

$ 

2.1  $ 

(122.5)  $ 

(6.4)  $ 

(126.8) 

Other comprehensive (loss) income before reclassifications

Amounts reclassified from accumulated other comprehensive loss

Net current-period other comprehensive (loss) income

(13.7) 

0.4 

(13.3) 

109.7 

0.2 

109.9 

(8.9) 

2.0 

(6.9) 

87.1 

2.6 

89.7 

Balance as of December 31, 2022

$ 

(11.2)  $ 

(12.6)  $ 

(13.3)  $ 

(37.1) 

Other comprehensive income (loss) before reclassifications

Amounts reclassified from accumulated other comprehensive loss

Net current-period other comprehensive income (loss)

Balance as of December 31, 2023
 (1)All amounts are net of tax. Amounts in parentheses indicate debits.

21.  

Business Segment Information

3.1 

0.8 

3.9 

(0.5) 

0.3 

(0.2) 

(1.4) 

1.2 

(0.2) 

1.2 

2.3 

3.5 

$ 

(7.3)  $ 

(12.8)  $ 

(13.5)  $ 

(33.6) 

At December 31, 2023, our operations are divided into two primary reportable segments, the Gas Distribution Operations and 
the Electric Operations segments. The remainder of our operations, which are not significant enough on a stand-alone basis to 
warrant  treatment  as  an  operating  segment,  are  presented  as  "Corporate  and  Other"  and  primarily  are  comprised  of  interest 
expense on holding company debt and unallocated corporate costs and activities. Refer to Note 3, "Revenue Recognition," for 
additional  information  on  our  segments  and  their  sources  of  revenues.  The  following  table  provides  information  about  our 
reportable  segments.  We  use  operating  income  as  our  primary  measurement  for  each  of  the  reported  segments  and  make 
decisions on finance, dividends and taxes at the corporate level on a consolidated basis. Segment revenues include intersegment 
sales to affiliated subsidiaries, which are eliminated in consolidation. Affiliated sales are recognized on the basis of prevailing 
market, regulated prices or at levels provided for under contractual agreements. Operating income is derived from revenues and 
expenses directly associated with each segment.

115

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

Year Ended December 31, (in millions)
Operating Revenues
Gas Distribution Operations

2023

2022

2021

Unaffiliated 

Intersegment

Total
Electric Operations

Unaffiliated
Intersegment

Total
Corporate and Other

Unaffiliated 
Intersegment

Total

Eliminations

Consolidated Operating Revenues

Year Ended December 31, (in millions)
Operating Income (Loss)

Gas Distribution Operations
Electric Operations
Corporate and Other

Consolidated Operating Income
Depreciation and Amortization
Gas Distribution Operations
Electric Operations
Corporate and Other

Consolidated Depreciation and Amortization
Assets

Gas Distribution Operations
Electric Operations
Corporate and Other
Consolidated Assets
Capital Expenditures(1)

$ 

3,720.4  $ 
12.3 
3,732.7 

4,007.2  $ 
12.6 
4,019.8 

1,784.2 
0.8 
1,785.0 

1,830.9 
0.8 
1,831.7 

0.8 
503.8 
504.6 
(516.9)   
5,505.4  $ 

12.5 
465.0 
477.5 
(478.4)   
5,850.6  $ 

3,171.2 
12.3 
3,183.5 

1,696.3 
0.8 
1,697.1 

32.1 
460.3 
492.4 
(473.4) 
4,899.6 

$ 

$ 

$ 

$ 

$ 

$ 

$ 

2023

2022

2021

901.9  $ 
378.7 
14.9 
1,295.5  $ 

915.8  $ 
362.4 
(12.4)   
1,265.8  $ 

464.6  $ 
400.9 
42.7 
908.2  $ 

415.9  $ 
362.9 
42.0 
820.8  $ 

617.5 
387.8 
1.6 
1,006.9 

383.0 
329.4 
36.0 
748.4 

18,122.8  $ 
9,250.5 
3,703.9 
31,077.2  $ 

16,986.5  $ 
7,992.6 
1,757.5 
26,736.6  $ 

15,153.7 
7,178.9 
1,824.3 
24,156.9 

Gas Distribution Operations
Electric Operations
Corporate and Other

1,406.4 
517.4 
16.6 
Consolidated Capital Expenditures
1,940.4 
(1)Amounts  differ  from  those  presented  on  the  Statements  of  Consolidated  Cash  Flows  primarily  due  to  the  inclusion  of  capital  expenditures  in  current 
liabilities, the capitalized portion of the Corporate Incentive Plan payout, and AFUDC Equity.

1,715.2  $ 
739.2 
236.3 
2,690.7  $ 

1,682.3  $ 
574.5 
41.2 
2,298.0  $ 

$ 

$ 

116

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

22.  

Other, Net

The following table displays the components of Other, Net included on the Statements of Consolidated Income:

Year Ended December 31, (in millions)
Interest income

AFUDC equity
Charitable contributions

Pension and other postretirement non-service cost(1)

Interest rate swap settlement gain

Miscellaneous
Total Other, net

(1) See Note 16, "Pension and Other Postemployment Benefits," for additional information.

23.  

Interest Expense, Net

2023

2022

2021

$ 

9.0  $ 

25.2 

(1.8)   

(24.0)   

— 

(0.4)   

8.0  $ 

$ 

4.3  $ 

15.1 

(4.4)   

27.6 

10.0 

(0.4)   

52.2  $ 

4.0 

13.1 

(11.5) 

35.5 

— 

(0.3) 

40.8 

The following table displays the components of Interest Expense, Net included on the Statements of Consolidated Income:

Year Ended December 31, (in millions)
Interest on long-term debt
Interest on short-term borrowings
Debt discount/cost amortization
Accounts receivable securitization fees
Allowance for borrowed funds used and interest capitalized during construction  
Debt-based post-in-service carrying charges
Other
Total Interest Expense, net

$ 

$ 

2023

2022

2021

404.1  $ 
108.9 
13.5 
2.7 
(25.3)   
(30.7)   
16.4 

489.6  $ 

344.5  $ 
22.7 
11.7 
2.5 
(6.7)   
(21.1)   
8.0 
361.6  $ 

336.4 
0.6 
11.0 
1.4 
(4.6) 
(14.7) 
11.0 
341.1 

117

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.
Notes to Consolidated Financial Statements

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

24.  

Supplemental Cash Flow Information

The following table provides additional information regarding our Consolidated Statements of Cash Flows for the years ended 
December 31, 2023, 2022 and 2021:

2023

2022

2021

315.0  $ 
64.5 
5.6 
— 
61.1 
— 
— 

433.9  $ 
8.6 
9.4 

275.1  $ 
19.3 
8.8 
— 
6.3 
— 
65.0 

343.8  $ 
8.5 
7.2 

245.7 
22.4 
6.0 
607.6 
12.0 
277.5 
129.4 

322.4 
9.4 
5.4 

Year Ended December 31, (in millions)
Supplemental Disclosures of Cash Flow Information
Non-cash transactions:

Capital expenditures included in current liabilities
Assets acquired under a finance lease
Assets acquired under an operating lease
Reclassification of other property to regulatory assets(1)
Assets recorded for asset retirement obligations(2)
Obligation to developer at formation of JV(3)
Purchase contract liability, net of fees and payments(4)

Schedule of interest and income taxes paid:

$ 

Cash paid for interest on debt, net of interest capitalized amounts
Cash paid for interest on finance leases
Cash paid for income taxes, net of refunds
(1)See Note 12, "Regulatory Matters," for additional information.
(2)See Note 11, "Asset Retirement Obligations," for additional information. 
(3)Represents investing non-cash activity. See Note 4, "Noncontrolling Interest," for additional information. 
(4)Refer to Note 6, "Equity," for additional information.

$ 

118

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA (continued)

NISOURCE INC.

SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS

Twelve months ended December 31, 2023

Additions

($ in millions)

Reserves Deducted in Consolidated Balance Sheet from Assets to 
Which They Apply:

Balance 
Jan. 1, 2023

Charged to 
Costs and 
Expenses

Charged to 
Other 
Account (1)

Deductions for 
Purposes for 
which Reserves 
were Created

Balance 
Dec. 31, 2023

Reserve for accounts receivable

Reserve for deferred charges and other

$ 

23.9  $ 

23.4  $ 

36.6 

$ 

61.0  $ 

1.0 

— 

0.3 

— 

22.9 

1.3 

Twelve months ended December 31, 2022

Additions

($ in millions)

Reserves Deducted in Consolidated Balance Sheet from Assets to 
Which They Apply:

Balance 
Jan. 1, 2022

Charged to 
Costs and 
Expenses

Charged to 
Other 
Account (1)

Deductions for 
Purposes for 
which Reserves 
were Created

Balance 
Dec. 31, 2022

Reserve for accounts receivable

Reserve for deferred charges and other

$ 

23.5  $ 

20.6  $ 

36.4 

$ 

56.6  $ 

2.3 

— 

(1.3) 

— 

23.9 

1.0 

Twelve months ended December 31, 2021

Additions

($ in millions)

Reserves Deducted in Consolidated Balance Sheet from Assets to 
Which They Apply:

Balance 
Jan. 1, 2021

Charged to 
Costs and 
Expenses

Charged to 
Other 
Account (1)

Deductions for 
Purposes for 
which Reserves 
were Created

Balance 
Dec. 31, 2021

Reserve for accounts receivable

$ 

52.3  $ 

18.3  $ 

6.4 

$ 

53.5  $ 

23.5 

Reserve for deferred charges and other
(1) Charged to Other Accounts reflects the deferral of bad debt expense to a regulatory asset or the movement of the reserve between short term and long term.

2.3 

— 

— 

— 

2.3 

119

  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NISOURCE INC.

ITEM  9.  CHANGES  IN  AND  DISAGREEMENTS  WITH  ACCOUNTANTS  ON  ACCOUNTING  AND  FINANCIAL 
DISCLOSURE
None.

ITEM 9A. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Our chief executive officer and chief financial officer are responsible for evaluating the effectiveness of disclosure controls and 
procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)). Our disclosure controls and procedures are designed to 
provide reasonable assurance that the information required to be disclosed by the Company in reports that are filed or submitted 
under  the  Exchange  Act  are  accumulated  and  communicated  to  management,  including  our  chief  executive  officer  and  chief 
financial officer, as appropriate, to allow timely decisions regarding required disclosure and is recorded, processed, summarized 
and  reported  within  the  time  periods  specified  in  the  rules  and  forms  of  the  SEC.  Based  upon  that  evaluation,  our  chief 
executive  officer  and  chief  financial  officer  concluded  that,  as  of  the  end  of  the  period  covered  by  this  report,  disclosure 
controls and procedures were effective to provide reasonable assurance that financial information was processed, recorded and 
reported accurately. 

Management’s Annual Report on Internal Control over Financial Reporting

Our  management,  including  our  chief  executive  officer  and  chief  financial  officer,  are  responsible  for  establishing  and 
maintaining  internal  control  over  financial  reporting,  as  such  term  is  defined  under  Rule  13a-15(f)  or  Rule  15d-15(f) 
promulgated under the Exchange Act. However, management would note that a control system can provide only reasonable, not 
absolute,  assurance  that  the  objectives  of  the  control  system  are  met.  Our  management  has  adopted  the  2013  framework  set 
forth  in  the  Committee  of  Sponsoring  Organizations  of  the  Treadway  Commission  report,  Internal  Control  -  Integrated 
Framework, the most commonly used and understood framework for evaluating internal control over financial reporting, as its 
framework  for  evaluating  the  reliability  and  effectiveness  of  internal  control  over  financial  reporting.  During  2023,  we 
conducted an evaluation of our internal control over financial reporting. Based on this evaluation, management concluded that 
our internal control over financial reporting was effective as of the end of the period covered by this Annual Report on Form 
10-K. 

Deloitte & Touche LLP, our independent registered public accounting firm, issued an attestation report on our internal controls 
over financial reporting which is included herein.

Changes in Internal Controls

There have been no changes in our internal control over financial reporting during the most recently completed quarter covered 
by  this  report  that  has  materially  affected,  or  is  reasonably  likely  to  materially  affect,  our  internal  control  over  financial 
reporting.

120

ITEM 9A. CONTROLS AND PROCEDURES

NISOURCE INC.

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 

To the shareholders and the Board of Directors of NiSource Inc.

Opinion on Internal Control over Financial Reporting

We  have  audited  the  internal  control  over  financial  reporting  of  NiSource  Inc.  and  subsidiaries  (the  “Company”)  as  of 
December 31, 2023, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee 
of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the Company maintained, in all material 
respects, effective internal control over financial reporting as of December 31, 2023, based on criteria established in Internal 
Control — Integrated Framework (2013) issued by COSO.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) 
(PCAOB),  the  consolidated  financial  statements  as  of  and  for  the  year  ended  December  31,  2023,  of  the  Company  and  our 
report dated February 21, 2024, expressed an unqualified opinion on those financial statements.

Basis for Opinion 

The  Company’s  management  is  responsible  for  maintaining  effective  internal  control  over  financial  reporting  and  for  its 
assessment  of  the  effectiveness  of  internal  control  over  financial  reporting,  included  in  the  accompanying  Management's 
Annual  Report  on  Internal  Control  over  Financial  Reporting.  Our  responsibility  is  to  express  an  opinion  on  the  Company’s 
internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are 
required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable 
rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the 
audit  to  obtain  reasonable  assurance  about  whether  effective  internal  control  over  financial  reporting  was  maintained  in  all 
material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk 
that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the 
assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit 
provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control over Financial Reporting

A  company’s  internal  control  over  financial  reporting  is  a  process  designed  to  provide  reasonable  assurance  regarding  the 
reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally 
accepted  accounting  principles.  A  company’s  internal  control  over  financial  reporting  includes  those  policies  and  procedures 
that  (1)  pertain  to  the  maintenance  of  records  that,  in  reasonable  detail,  accurately  and  fairly  reflect  the  transactions  and 
dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit 
preparation  of  financial  statements  in  accordance  with  generally  accepted  accounting  principles,  and  that  receipts  and 
expenditures  of  the  company  are  being  made  only  in  accordance  with  authorizations  of  management  and  directors  of  the 
company;  and  (3)  provide  reasonable  assurance  regarding  prevention  or  timely  detection  of  unauthorized  acquisition,  use,  or 
disposition of the company’s assets that could have a material effect on the financial statements.

Because  of  its  inherent  limitations,  internal  control  over  financial  reporting  may  not  prevent  or  detect  misstatements.  Also, 
projections  of  any  evaluation  of  effectiveness  to  future  periods  are  subject  to  the  risk  that  controls  may  become  inadequate 
because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ DELOITTE & TOUCHE LLP
Columbus, Ohio
February 21, 2024

121

ITEM 9B. OTHER INFORMATION

NISOURCE INC.

Director and Officer Trading Arrangements

During the year ended December 31, 2023, no director or Section 16 officer of the Company adopted, terminated or modified a 
‘Rule  10b5-1  trading  arrangement’  or  ‘non-Rule  10b5-1  trading  arrangement,’  as  each  term  is  defined  in  Item  408(a)  of 
Regulation S-K.

ITEM 9C. DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS

Not applicable.

122

NISOURCE INC.

PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

Except for the information required by this item with respect to our executive officers included at the end of Part I of this report 
on  Form  10-K,  the  information  required  by  this  Item  10  is  incorporated  herein  by  reference  to  the  discussion  in  "Proposal  1 
Election of Directors," "Corporate Governance - Board Committee Composition," "Corporate Governance - Code of Business 
Conduct," and "Delinquent Section 16(a) Reports" of the Proxy Statement for the Annual Meeting of Stockholders to be held on 
May 13, 2024. 

ITEM 11. EXECUTIVE COMPENSATION

The information required by this Item 11 is incorporated herein by reference to the discussion in "Compensation and Human 
Capital  Committee  Interlocks  and  Insider  Participation,"  "2023  Director  Compensation,"  "2023  Executive  Compensation," 
"Compensation  Discussion  and  Analysis  (CD&A),"  "Assessment  of  Risk,"  "2023  Pay  Versus  Performance,"  and 
"Compensation and Human Capital Committee Report" of the Proxy Statement for the Annual Meeting of Stockholders to be 
held on May 13, 2024.

ITEM  12.  SECURITY  OWNERSHIP  OF  CERTAIN  BENEFICIAL  OWNERS  AND  MANAGEMENT  AND  RELATED 
STOCKHOLDER MATTERS

The  information  required  by  this  Item  12  is  incorporated  herein  by  reference  to  the  discussion  in  "Security  Ownership  of 
Certain  Beneficial  Owners  and  Management,"  and  "Equity  Compensation  Plan  Information"  of  the  Proxy  Statement  for  the 
Annual Meeting of Stockholders to be held on May 13, 2024.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

The  information  required  by  this  Item  13  is  incorporated  herein  by  reference  to  the  discussion  in  "Corporate  Governance  - 
Policies  and  Procedures  with  Respect  to  Transactions  with  Related  Persons"  and  "Corporate  Governance  -  Director 
Independence" of the Proxy Statement for the Annual Meeting of Stockholders to be held on May 13, 2024.

ITEM 14. PRINCIPAL ACCOUNTING FEES AND SERVICES

The  information  required  by  this  Item  14  is  incorporated  herein  by  reference  to  the  discussion  in  "Independent  Registered 
Public Accounting Firm Fees" of the Proxy Statement for the Annual Meeting of Stockholders to be held on May 13, 2024.

123

NISOURCE INC.

ITEM 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES

PART IV

Financial Statements and Financial Statement Schedules
The  following  financial  statements  and  financial  statement  schedules  filed  as  a  part  of  the  Annual  Report  on  Form  10-K  are 
included in Item 8, "Financial Statements and Supplementary Data."

Report of Independent Registered Public Accounting Firm (PCAOB ID: 34)
Statements of Consolidated Income
Statements of Consolidated Comprehensive Income
Consolidated Balance Sheets
Statements of Consolidated Cash Flows
Statements of Consolidated Stockholders’ Equity
Notes to Consolidated Financial Statements
Schedule II

Page

57
60
61
62
64
65
67
119

Exhibits
The  exhibits  filed  herewith  as  a  part  of  this  report  on  Form  10-K  are  listed  on  the  Exhibit  Index  below.  Each  management 
contract or compensatory plan or arrangement of ours, listed on the Exhibit Index, is separately identified by an asterisk.

Pursuant  to  Item  601(b),  paragraph  (4)(iii)(A)  of  Regulation  S-K,  certain  instruments  representing  long-term  debt  of  our 
subsidiaries  have  not  been  included  as  Exhibits  because  such  debt  does  not  exceed  10%  of  the  total  assets  of  ours  and  our 
subsidiaries on a consolidated basis. We agree to furnish a copy of any such instrument to the SEC upon request.

EXHIBIT
NUMBER DESCRIPTION OF ITEM

(1.1)

(1.2)

(2.1)

(3.1)

(3.2)

(3.3)

(3.4)

(3.5)

(3.6)

(4.1)

(4.2)

(4.3)

Form of Equity Distribution Agreement (incorporated by reference to Exhibit 1.1 of the NiSource Inc. Form 8-K 
filed on February 22, 2021).
Form of Master Forward Sale Confirmation (incorporated by reference to Exhibit 1.2 of the NiSource Inc. Form 
8-K filed on February 22, 2021).

Separation and Distribution Agreement, dated as of June 30, 2015, by and between NiSource Inc. and Columbia 
Pipeline Group, Inc. (incorporated by reference to Exhibit 2.1 to the NiSource Inc. Form 8-K filed on July 2, 
2015).

Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit 3.1 to the Registrant’s 
Form 10-Q, filed with the Commission on August 3, 2015).

Certificate of Amendment of Amended and Restated Certificate of Incorporation of NiSource dated May 7, 2019 
(incorporated by reference to Exhibit 3.1 of the NiSource Inc. Form 8-K filed on May 8, 2019).

Certificate of Amendment of Amended and Restated Certificate of Incorporation of NiSource dated May 23, 
2023 (incorporated by reference to Exhibit 3.1 of the NiSource Inc. Form 8-K filed on May 24, 2023).

Bylaws of NiSource Inc., as amended and restated through August 9, 2022 (incorporated by reference to Exhibit 
3.1 to the NiSource Inc. Form 8-K filed on August 10, 2022).

Certificate of Designations of 6.50% Series B Fixed-Rate Reset Cumulative Redeemable Perpetual Preferred 
Stock (incorporated by reference to Exhibit 3.1 of the NiSource Inc. Form 8-K filed on December 6, 2018).

Certificate of Designations of Series B-1 Preferred Stock (incorporated by reference to Exhibit 3.1 to the 
NiSource Inc. Form 8-K filed on December 27, 2018).

Indenture, dated as of March 1, 1988, by and between Northern Indiana Public Service Company ("NIPSCO") 
and Manufacturers Hanover Trust Company, as Trustee (incorporated by reference to Exhibit 4 to the NIPSCO 
Registration Statement (Registration No. 33-44193)).

First Supplemental Indenture, dated as of December 1, 1991, by and between Northern Indiana Public Service 
Company and Manufacturers Hanover Trust Company, as Trustee (incorporated by reference to Exhibit 4.1 to 
the NIPSCO Registration Statement (Registration No. 33-63870)).

Indenture Agreement, dated as of February 14, 1997, by and between NIPSCO Industries, Inc., NIPSCO Capital 
Markets, Inc. and Chase Manhattan Bank as trustee (incorporated by reference to Exhibit 4.1 to the NIPSCO 
Industries, Inc. Registration Statement (Registration No. 333-22347)).

124

(4.4)

(4.5)

(4.6)

(4.7)

(4.8)

(4.9)

(4.10)

(4.11)

(4.12)

(4.13)

(4.14)

(4.15)

(4.16)

(4.17)

(4.18)

(4.19)

(4.20)

(4.21)

(4.22)

Second Supplemental Indenture, dated as of November 1, 2000, by and among NiSource Capital Markets, Inc., 
NiSource Inc., New NiSource Inc., and The Chase Manhattan Bank, as trustee (incorporated by reference to 
Exhibit 4.45 to the NiSource Inc. Form 10-K for the period ended December 31, 2000).

Indenture, dated November 14, 2000, among NiSource Finance Corp., NiSource Inc., as guarantor, and The 
Chase Manhattan Bank, as Trustee (incorporated by reference to Exhibit 4.1 to the NiSource Inc. Form S-3, 
dated November 17, 2000 (Registration No. 333-49330)).

Form of 3.490% Notes due 2027 (incorporated by reference to Exhibit 4.1 to the NiSource Inc. Form 8-K filed 
on May 17, 2017).

Form of 4.375% Notes due 2047 (incorporated by reference to Exhibit 4.2 to the NiSource Inc. Form 8-K filed 
on May 17, 2017).

Form of 3.950% Notes due 2048 (incorporated by reference to Exhibit 4.1 to the NiSource Inc. Form 8-K filed 
on September 8, 2017).

Second Supplemental Indenture, dated as of November 30, 2017, between NiSource Inc. and The Bank of New 
York Mellon, as trustee (incorporated by reference to Exhibit 4.4 to Post-Effective Amendment No. 1 to 
Form S-3 filed November 30, 2017 (Registration No. 333-214360)).

Third Supplemental Indenture, dated as of November 30, 2017, between NiSource Inc. and The Bank of New 
York Mellon, as trustee (incorporated by reference to Exhibit 4.2 to the NiSource Inc. Form 8-K filed on 
December 1, 2017).

Second Supplemental Indenture, dated as of February 12, 2018, between Northern Indiana Public Service 
Company and The Bank of New York Mellon, solely as successor trustee under the Indenture dated as of March 
1, 1988 between the Company and Manufacturers Hanover Trust Company, as original trustee. (incorporated by 
reference to Exhibit 4.1 to the NiSource Inc. Form 10-Q filed on May 2, 2018).

Fourth Supplemental Indenture, dated as of December 18, 2023, between NiSource, Inc. and The Bank of New 
York Mellon, as trustee, relating to the 7.99% Medium-Term Notes due 2027 and the 6.78% Senior Notes due 
2027 (incorporated by reference to Exhibit 10.1 to the NiSource Inc. Form 8-K filed on December 18, 2023).

Deposit Agreement, dated as of December  5, 2018, among NiSource, Inc., Computershare Inc. and 
Computershare Trust Company, N.A., acting jointly as depositary, and the holders from time to time of the 
depositary receipts described therein (incorporated by reference to Exhibit 4.1 of the NiSource Inc. Form 8-
K filed on December 6, 2018).

Form of Depositary Receipt (incorporated by reference to Exhibit 4.1 of the NiSource Inc. Form 8-K filed on 
December 6, 2018).

Amended and Restated Deposit Agreement, dated as of December  27, 2018, among NiSource, Inc., 
Computershare Inc. and Computershare Trust Company, N.A., acting jointly as depositary, and the holders from 
time to time of the depositary receipts described therein (incorporated by reference to Exhibit 4.1 to the 
NiSource Inc. Form 8-K filed on December 27, 2018).

Form of Depositary Receipt (incorporated by reference to Exhibit 4.1 to the NiSource Inc. Form 8-K filed on 
December 27, 2018).

Form of 2.950% Notes due 2029 (incorporated by reference to Exhibit 4.1 to NiSource Inc. Form 8-K filed on 
August 12, 2019).

Amended and Restated NiSource Inc. Employee Stock Purchase Plan (incorporated by reference to Exhibit C to 
the Registrant’s Definitive Proxy Statement on Schedule 14A, filed with the Commission on April 1, 2019).

Form of 3.600% Notes due 2030 (incorporated by reference to Exhibit 4.1 to the NiSource Inc. Form 8-K filed 
on April 8, 2020).

Form of 0.950% Notes due 2025 (incorporated by reference to Exhibit 4.1 to the NiSource Inc. Form 8-K filed 
on August 18, 2020).

Form of 1.700% Notes due 2031(incorporated by reference to Exhibit 4.2 to the NiSource Inc. Form 8-K filed on 
August 18, 2020).

Form of 5.000% Notes due 2052 (incorporated by reference to Exhibit 4.1 of the NiSource Inc. Form 8-K filed 
on June 10, 2022).

125

(4.23)

(4.24)

(4.25)

(4.26)

(4.27)

(4.28)

(4.29)

(4.30)

(4.31)

(10.1)

(10.2)

(10.3)

(10.4)

(10.5)

(10.6)

(10.7)

(10.8)

(10.9)

(10.10)

(10.11)

(10.12)

(10.13)

Form of 5.250% Notes due 2028 (incorporated by reference to Exhibit 4.1 to the NiSource Inc. Form 8-K filed 
on March 24, 2023).

Form of 5.400% Notes due 2033 (incorporated by reference to Exhibit 4.2 to the NiSource Inc. Form 8-K filed 
on June 9, 2023).

Description of NiSource Inc.’s Securities Registered Under Section 12 of the Exchange Act.**

Form of 6.25% Notes due 2040 (incorporated by reference to Exhibit 4.1 to the NiSource Inc. Form 8-K filed on 
December 6, 2010).

Form of 5.95% Notes due 2041 (incorporated by reference to Exhibit 4.1 to the NiSource Inc. Form 8-K filed on 
June 10, 2011).

Form of 5.80% Notes due 2042 (incorporated by reference to Exhibit 4.2 to the NiSource Inc. Form 8-K filed on 
November 17, 2011).

Form of 5.25% Notes due 2043 (incorporated by reference to Exhibit 4.2 to the NiSource Inc. Form 8-K filed on 
June 14, 2012).

Form of 4.80% Notes due 2044 (incorporated by reference to Exhibit 4.1 to the NiSource Inc. Form 8-K filed on 
April 12, 2013).

Form of 5.65% Notes due 2045 (incorporated by reference to Exhibit 4.1 to the NiSource Inc. Form 8-K filed on 
October 7, 2013).

2010 Omnibus Incentive Plan (incorporated by reference to Exhibit B to the NiSource Inc. Definitive Proxy 
Statement to Stockholders for the Annual Meeting held on May 11, 2010, filed on April 2, 2010).*

First Amendment to the 2010 Omnibus Incentive Plan (incorporated by reference to Exhibit 10.2 to the NiSource 
Inc. Form 10-K filed on February 18, 2014.)*

2010 Omnibus Incentive Plan (incorporated by reference to Exhibit C to the NiSource Inc. Definitive Proxy 
Statement to Stockholders for the Annual Meeting held on May 12, 2015, filed on April 7, 2015).*

Second Amendment to the NiSource Inc. 2010 Omnibus Incentive Plan (incorporated by reference to Exhibit 
10.1 to the NiSource Inc. Form 8-K filed October 23, 2015.)*

Form of Amendment to Restricted Stock Unit Award Agreement related to Vested but Unpaid NiSource 
Restricted Stock Unit Awards for Nonemployee Directors of NiSource entered into as of July 13, 2015 
(incorporated by reference to Exhibit 10.3 to the NiSource Inc. Form 10-Q filed on November 3, 2015).*

Supplemental Life Insurance Plan effective January 1, 1991, as amended, (incorporated by reference to Exhibit 2 
to the NIPSCO Industries, Inc. Form 8-K filed on March 25, 1992).*

Form of Restricted Stock Unit Award Agreement for Nonemployee Directors under the 2010 Omnibus Incentive 
Plan (incorporated by reference to Exhibit 10.1 to NiSource Inc. Form 10-Q filed on August 2, 2011).*

Form of Restricted Stock Unit Award Agreement for Nonemployee Directors under the 2010 Omnibus Incentive 
Plan (incorporated by reference to Exhibit 10.18 to the NiSource Inc. Form 10-K filed on February 22, 2017). *

Amended and Restated NiSource Inc. Executive Deferred Compensation Plan effective November 1, 2012 
(incorporated by reference to Exhibit 10.21 to the NiSource Inc. Form 10-K filed on February 19, 2013).*

Note Purchase Agreement, dated as of August 23, 2005, by and among NiSource Finance Corp., as issuer, 
NiSource Inc., as guarantor, and the purchasers named therein (incorporated by reference to Exhibit 10.1 to the 
NiSource Inc. Current Report on Form 8-K filed on August 26, 2005).

Amendment No. 1, dated as of November 10, 2008, to the Note Purchase Agreement by and among NiSource 
Finance Corp., as issuer, NiSource Inc., as guarantor, and the purchasers whose names appear on the signature 
page thereto (incorporated by reference to Exhibit 10.30 to the NiSource Inc. Form 10-K filed on February 27, 
2009).

Form of Change in Control and Termination Agreement (incorporated by reference to Exhibit 10.1 to the 
NiSource Inc. Form 10-Q filed on August 2, 2017).*

Registration Rights Agreement, dated as of May 2, 2018, by and among NiSource Inc. and the purchasers named 
therein (incorporated by reference to Exhibit 10.2 of the NiSource Inc. Form 8-K filed on May 2, 2018).

126

(10.14)

(10.15)

(10.16)

(10.17)

(10.18)

(10.19)

(10.20)

(10.21)

(10.22)

(10.23)

(10.24)

(10.25)

(10.26)

(10.27)

(10.28)

(10.29)

(10.30)

Form of 2019 Performance Share Award Agreement under the 2010 Omnibus Incentive Plan. (incorporated by 
reference to Exhibit 10.45 of the NiSource Inc. Form 10-K filed on February 20, 2019).*

Amended and Restated NiSource Inc. Employee Stock Purchase Plan adopted as of February 1, 2019 
(incorporated by reference to Exhibit C to the NiSource Inc. Definitive Proxy Statement to Stockholders for the 
Annual Meeting to be held on May 7, 2019, filed on April 1, 2019).

Form of Performance Share Award Agreement (incorporated by reference to Exhibit 10.39 of the NiSource 
Form 10-K filed on February 28, 2020).* 

Form of Restricted Stock Unit Award Agreement (incorporated by reference to Exhibit 10.40 of the NiSource 
Form 10-K filed on February 28, 2020). * 

Form of Cash-Based Award Agreement (incorporated by reference to Exhibit 10.41 of the NiSource Form 10-K 
filed on February 28, 2020). * 

2020 Omnibus Incentive Plan (incorporated by reference to Exhibit A to the NiSource Inc. Definitive Proxy 
Statement to Stockholders for the Annual Meeting held on May 19, 2020, filed on April 13, 2020).*

Form of Restricted Stock Unit Award Agreement for Nonemployee Directors under the 2020 Omnibus Incentive 
Plan (incorporated by reference to Exhibit 10.2 of the NiSource Inc. Form 10-Q filed on August 5, 2020).*

NiSource Inc. Supplemental Executive Retirement Plan, as amended and restated effective November 1, 2020 
(incorporated by reference to Exhibit 10.4 to the NiSource Inc. Form 10-Q filed on November 2, 2020).*

Pension Restoration Plan for NiSource Inc. and Affiliates, as amended and restated effective November 1, 2020 
(incorporated by reference to Exhibit 10.5 to the NiSource Inc. Form 10-Q filed on November 2, 2020).

Savings Restoration Plan for NiSource Inc. and Affiliates, as amended and restated effective November 1, 2020 
(incorporated by reference to Exhibit 10.6 to the NiSource Inc. Form 10-Q filed on November 2, 2020).*

First Amendment to the Savings Restoration Plan for NiSource Inc. and Affiliates dated October 12, 2023 and 
effective November 1, 2020.* **

NiSource Inc. Executive Severance Policy, as amended and restated effective October 19, 2020 (incorporated by 
reference to Exhibit 10.7 to the NiSource Inc. Form 10-Q filed on November 2, 2020).*

NiSource Next Voluntary Separation Program, effective as of August 5, 2020 (incorporated by reference to 
Exhibit 10.8 to the NiSource Inc. Form 10-Q filed on November 2, 2020).*

Form of Restricted Stock Unit Award Agreement. (incorporated by reference to Exhibit 10.53 to the NiSource 
Inc. Form 10-K filed on February 17, 2021).*

Form of Performance Share Unit Award Agreement. (incorporated by reference to Exhibit 10.54 to the NiSource 
Inc. Form 10-K filed on February 17, 2021).*

Form of Special Performance Share Unit Award Agreement. (incorporated by reference to Exhibit 10.55 to the 
NiSource Inc. Form 10-K filed on February 17, 2021).*

Sixth Amended and Restated Revolving Credit Agreement, dated as of February 18, 2022, among NiSource Inc., 
as Borrower, the Lenders party thereto, Barclays Bank PLC, as Administrative Agent, JPMorgan Chase Bank, 
N.A. and MUFG Bank, Ltd., as Co-Syndication Agents, Credit Suisse AG, New York Branch, Wells Fargo 
Bank, National Association, and Bank of America, National Association, as Co-Documentation Agents, 
Barclays Bank PLC and MUFG Bank, Ltd., as Co-Sustainability Structuring Agents, and Barclays Bank PLC, 
JPMorgan Chase Bank, N.A. MUFG Bank, Ltd., Credit Suisse Loan Funding LLC, Wells Fargo Securities, LLC, 
and BofA Securities, Inc., as Joint Lead Arrangers and Joint Bookrunners (incorporated by reference to Exhibit 
10.1 of the NiSource Inc. Form 8-K filed on February 18, 2022).

(10.31)

Amendment No. 1 to the Sixth Amended and Restated Revolving Credit Agreement dated February 18, 2022, 
made as of August 23, 2023 by and among NiSource Inc., the financial institutions listed on the signature pages 
and Barclays Bank PLC, as administrative agent (incorporated by reference to Exhibit 10.1 to the NiSource Inc. 
Form 8-K filed on August 23, 2023).

(10.32)

First Amendment to the NiSource Inc. 2020 Omnibus Incentive Plan (incorporated by reference to Exhibit 10.1 
of the NiSource Inc. Form 10-Q filed on May 4, 2022).

127

(10.33)

(10.34)

(10.35)

(10.36)

(10.37)

(10.38)

(10.39)

(10.40)

(10.41)

(10.42)

(10.43)

(10.44)

(10.45)

(10.46)

(10.47)

Credit Agreement, dated as of December 20, 2022, among NiSource Inc., as Borrower, the lenders party thereto, 
and JPMorgan Chase Bank, N.A., as Administrative Agent, PNC Capital Markets LLC, as Syndication Agent, 
Bank of America, N.A. and Wells Fargo Bank, N.A., as Co-Documentation Agents and JPMorgan Chase Bank, 
N.A., PNC Capital Markets LLC, Bank of America, N.A. and Wells Fargo Securities, LLC, as Joint Lead 
Arrangers and Joint Bookrunners (incorporated by reference to Exhibit 10.1 of the NiSource Inc. Form 8-K filed 
on December 20, 2022).

Amendment No. 1 to the Credit Agreement dated December 20, 2022, made as of October 5, 2023 by and 
among NiSource Inc., the financial institutions listed on the signature pages and JPMorgan Chase Bank, N.A., as 
administrative agent (incorporated by reference to Exhibit 10.1 to the NiSource Inc. Form 8-K filed on October 
5, 2023).

Credit Agreement, dated as of November 9, 2023, among NiSource Inc., as Borrower, the lenders party there to, 
and U.S. Bank National Association, as Administrative Agent, as Sole Lead Arranger and Bookrunner 
(incorporated by reference to Exhibit 10.1 to the NiSource Inc. Form 8-K filed on November 9, 2023).

Augmenting Lender Supplement, dated December 6, 2023, by and among NiSource Inc., Mizuho Bank, LTD, 
Bank of Montreal. and U.S. Bank National Association (incorporated by reference to Exhibit 10.1 to the 
NiSource Inc. Form 8-K filed on December 6, 2023).

Form of Restricted Stock Unit Award Agreement.(incorporated by reference to Exhibit 10.57 to the NiSource 
Inc. Form 10-K filed on February 22, 2023).* 

Form of Performance Share Unit Award Agreement (incorporated by reference to Exhibit 10.58 to the NiSource 
Inc. Form 10-K filed on February 22, 2023).* 

Form of Restricted Stock Unit Award Agreement. (incorporated by reference to Exhibit 10.59 to the NiSource 
Inc. Form 10-K filed on February 22, 2023).* 

Form of Performance Share Unit Award Agreement. (incorporated by reference to Exhibit 10.60 to the NiSource 
Inc. Form 10-K filed on February 22, 2023).* 

Purchase and Sale Agreement, dated as of June 17, 2023, among NiSource Inc., as the Parent, NIPSCO Holdings 
II LLC, as the Company, and BIP BLUE BUYER L.L.C., as the Investor (incorporated by reference to Exhibit 
10.1 to the NiSource Inc. Form 8-K filed on June 20, 2023).

Amendment No. 1 to the Purchase and Sale Agreement, dated as of July 6, 2023, among NiSource Inc., as the 
Parent, NIPSCO Holdings II LLC, as the Company, and BIP BLUE BUYER L.L.C., as the Investor 
(incorporated by reference to Exhibit 10.2 of the NiSource Inc. Form 10-Q filed on August 2, 2023).****

Amended and Restated Limited Liability Company Agreement of NIPSCO Holdings II LLC, dated December 
31, 2023 (incorporated by reference to Exhibit 10.1 of the NiSource Inc. Form 8-K filed on January 2, 
2024).****

Second Amended and Restated Limited Liability Company Agreement of NIPSCO Holdings II LLC, dated 
January 30, 2024.** ****

Form of 2024 CEO RSU Award Agreement (incorporated by reference to Exhibit 10.1 of the NiSource Inc. 
Form 8-K filed on January 26, 2024).*

Form of 2024 CEO PSU Award Agreement (incorporated by reference to Exhibit 10.2 of the NiSource Inc. 
Form 8-K filed on January 26, 2024).* 

Form of RSU Award Agreement (for awards on or after 2024) (incorporated by reference to Exhibit 10.3 of the 
NiSource Inc. Form 8-K filed on January 26, 2024).*

(10.48)

Form of PSU Award Agreement (for awards on or after 2024).* **

(21)

(23)

(31.1)

(31.2)

(32.1)

List of Subsidiaries.**

Consent of Deloitte & Touche LLP.**

Certification of Chief Executive Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.**

Certification of Chief Financial Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.**

Certification of Chief Executive Officer, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished 
herewith).**

128

(32.2)

Certification of Chief Financial Officer, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished 
herewith).**

(97.1)

NiSource Inc. Compensation Recoupment Policy.**

(101.INS)

Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its 
XBRL tags are embedded within the Inline XBRL document. **

(101.SCH)

Inline XBRL Schema Document.**

(101.CAL)

Inline XBRL Calculation Linkbase Document.**

(101.LAB)

Inline XBRL Labels Linkbase Document.**

(101.PRE)

Inline XBRL Presentation Linkbase Document.**

(101.DEF)

Inline XBRL Definition Linkbase Document.**

(104)

Cover page Interactive Data File (formatted as inline XBRL, and contained in Exhibit 101.)

*

**

***

Management contract or compensatory plan or arrangement of NiSource Inc.

Exhibit filed herewith.

Schedules and exhibits have been omitted pursuant to Item 601(b)(2) of Regulation S-K. NiSource agrees to furnish 
supplementally a copy of any omitted schedules or exhibits to the SEC upon request.

**** Schedules and similar attachments to this Exhibit have been omitted pursuant to Item 601(a)(5) of Regulation S-K. 
The Company agrees to furnish supplementally a copy of any omitted schedule or exhibit to the U.S. Securities and 
Exchange Commission (the “SEC”) upon request.

References made to NIPSCO filings can be found at Commission File Number 001-04125. References made to NiSource Inc. 
filings made prior to November 1, 2000 can be found at Commission File Number 001-09779.

129

ITEM 16. FORM 10-K SUMMARY

None.

130

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf 
by the undersigned, hereunto duly authorized.

(Registrant)

NiSource Inc.

Date:                 February 21, 2024              

By:

/s/                                  LLOYD M. YATES

Lloyd M. Yates

President, Chief Executive Officer and Director

(Principal Executive Officer)

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and 
in the capacities and on the dates indicated.

/s/

LLOYD M. YATES

Lloyd M. Yates

/s/

SHAWN ANDERSON

Shawn Anderson

/s/ GUNNAR J. GODE

Gunnar J. Gode

/s/ KEVIN T. KABAT

Kevin T. Kabat

/s/

 PETER A. ALTABEF

 Peter A. Altabef

/s/

SONDRA L. BARBOUR

Sondra L. Barbour

President, Chief

Executive Officer and Director
(Principal Executive Officer)

Date:                    February 21, 2024

Executive Vice President and

Date:                     February 21, 2024

Chief Financial Officer 
(Principal Financial Officer)

Vice President and

Date:                     February 21, 2024

Chief Accounting Officer
(Principal Accounting Officer)

Chairman of the Board

Date:                     February 21, 2024

Director

Director

Date:                     February 21, 2024

Date:                     February 21, 2024

/s/

THEODORE H. BUNTING, JR.

Director

Date:                     February 21, 2024

Theodore H. Bunting, Jr.

/s/

ERIC L. BUTLER

Eric L. Butler

/s/ ARISTIDES S. CANDRIS

Aristides S. Candris

/s/ DEBORAH A. HENRETTA

Deborah A. Henretta

/s/ DEBORAH A.P. HERSMAN  

Deborah A. P. Hersman

/s/ WILLIAM D. JOHNSON

William D. Johnson

/s/ MICHAEL E. JESANIS

Michael E. Jesanis

/s/ CASSANDRA S. LEE

Cassandra S. Lee

Director

Director

Director

Director

Director

Director

Director

131

Date:                     February 21, 2024

Date:                     February 21, 2024

Date:                     February 21, 2024

Date:                     February 21, 2024

Date:                     February 21, 2024

Date:                     February 21, 2024

Date:                     February 21, 2024

 
STOCKHOLDER INFORMATION

Forward-Looking Statements
This document contains “forward-looking statements,” within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and 
Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Investors and prospective investors should understand that many factors 
govern whether any forward-looking statement contained herein will be or can be realized. Any one of those factors could cause actual results to differ materially from 
those projected. These forward-looking statements include, but are not limited to, statements concerning our plans, strategies, objectives, expected performance, 
expenditures, recovery of expenditures through rates, stated on either a consolidated or segment basis, and any and all underlying assumptions and other statements 
that are other than statements of historical fact. Expressions of future goals and expectations and similar expressions, including “may,” “will,” “should,” “could,” “would,” 
“aims,” “seeks,” “expects,” “plans,” “anticipates,” “intends,” “believes,” “estimates,” “predicts,” “potential,” “targets,” “forecast,” and “continue,” reflecting something other 
than historical fact are intended to identify forward-looking statements. All forward-looking statements are based on assumptions that management believes to be 
reasonable; however, there can be no assurance that actual results will not differ materially. 

Factors that could cause actual results to differ materially from the projections, forecasts, estimates and expectations discussed in this document include, among other 
things: our ability to execute our business plan or growth strategy, including utility infrastructure investments; potential incidents and other operating risks associated 
with our business; our ability to work successfully with our third-party investors; our ability to adapt to, and manage costs related to, advances in technology, including 
alternative energy sources and changes in laws and regulations; our increased dependency on technology; impacts related to our aging infrastructure; our ability to 
obtain sufficient insurance coverage and whether such coverage will protect us against significant losses; the success of our electric generation strategy; construction 
risks and supply risks; fluctuations in demand from residential and commercial customers; fluctuations in the price of energy commodities and related transportation 
costs or an inability to obtain an adequate, reliable and cost-effective fuel supply to meet customer demand; our ability to attract, retain or re-skill a qualified, diverse 
workforce and maintain good labor relations; our ability to manage new initiatives and organizational changes; the actions of activist stockholders; the performance and 
quality of third-party suppliers and service providers; potential cybersecurity attacks or security breaches; increased requirements and costs related to cybersecurity; 
any damage to our reputation; the impacts of natural disasters, potential terrorist attacks or other catastrophic events; the physical impacts of climate change and the 
transition to a lower carbon future; our ability to manage the financial and operational risks related to achieving our carbon emission reduction goals, including our Net 
Zero Goal; our debt obligations; any changes to our credit rating or the credit rating of certain of our subsidiaries; adverse economic and capital market conditions, 
including increases in inflation or interest rates, recession, or changes in investor sentiment; economic regulation and the impact of regulatory rate reviews; our 
ability to obtain expected financial or regulatory outcomes; economic conditions in certain industries; the reliability of customers and suppliers to fulfill their payment 
and contractual obligations; the ability of our subsidiaries to generate cash; pension funding obligations; potential impairments of goodwill; the outcome of legal and 
regulatory proceedings, investigations, incidents, claims and litigation; compliance with changes in, or new interpretations of applicable laws, regulations and tariffs; the 
cost of compliance with environmental laws and regulations and the costs of associated liabilities; changes in tax laws or the interpretation thereof; and other matters 
set forth in Item 1, “Business,” Item 1A, “Risk Factors” and Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” of 
our Annual Report on Form 10-K for the fiscal year ended December 31, 2023, and any subsequent filings made with the Securities and Exchange Commission, some 
of which risks are beyond our control. In addition, the relative contributions to profitability by each business segment, and the assumptions underlying the forward-
looking statements relating thereto, may change over time. 

All forward-looking statements are expressly qualified in their entirety by the foregoing cautionary statements. We undertake no obligation to, and expressly disclaim 
any such obligation to, update or revise any forward-looking statements to reflect changed assumptions, the occurrence of anticipated or unanticipated events or 
changes to the future results over time or otherwise, except as required by law.

Regulation G Disclosure Statement
This press release includes financial results and guidance for NiSource with respect to net operating earnings available to common shareholders, which is a non-
GAAP financial measure as defined by the Securities and Exchange Commission’s (SEC) Regulation G. The company includes this measure because management 
believes it permits investors to view the company’s performance using the same tools that management uses and to better evaluate the company’s ongoing business 
performance. With respect to such guidance, it should be noted that there will likely be a difference between this measure and its GAAP equivalent due to various 
factors, including, but not limited to, fluctuations in weather, the impact of asset sales and impairments, and other items included in GAAP results. The company is not 
able to estimate the impact of such factors on GAAP earnings and, as such, is not providing earnings guidance on a GAAP basis. In addition, the company is not able 
to provide a reconciliation of its non-GAAP net operating earnings guidance to its GAAP equivalent without unreasonable efforts. 

Investor Relations
investors@nisource.com

Media Relations
media@nisource.com

Anticipated Dividend Record and  
Payment Dates* (NiSource Common Stock)

Record Date
02/05/24
04/30/24
07/31/24
10/31/24
02/03/25

Payment Date
02/20/24
05/20/24
08/20/24
11/20/24
02/20/25

Common Stock Dividend Declared*
On February 20, 2024, the company paid a quarterly 
dividend of $0.265 per share to stockholders of 
record as of the close of business on February 5, 
2024, equivalent to $1.06 per share on an annual 
basis.

Stockholder Services
Questions about stockholder accounts, stock 
certificates, transfer of shares, dividend payments, 
automatic dividend reinvestment and stock purchase 
plan, and electronic deposit may be directed to 
Computershare at the following:

Computershare
c/o Shareholder Services
P.O. Box 43078
Providence, RI 02940-3078 
(888) 884-7790
• TDD for Hearing Impaired: (800) 231-5469
• Foreign Stockholders: (201) 680-6578
• TDD Foreign Stockholders: (201) 680-6610
• Computershare.com/investor

*DIVIDENDS ARE SUBJECT TO BOARD APPROVAL.

Investor and Financial Information
Financial analysts and investment professionals should direct 
written and email inquiries to NiSource Investor Relations,  
801 East 86th Avenue, Merrillville, Indiana 46410 or  
investors@nisource.com. Copies of NiSource’s financial reports 
are available at NiSource.com.

Stock Listing 
NiSource Inc. common stock is listed on the New York Stock 
Exchange under the ticker symbol “NI.”

Independent Registered Public Accounting Firm
Deloitte & Touche LLP

Sustainability 
Additional details on sustainability and environmental, social 
and governance (ESG) issues and related policies can be found 
under the Sustainability tab at NiSource.com. 

Board of Directors
Communications with the Board of Directors may be made 
generally, to any director individually, to the non-management 
directors as a group or the lead director of the non-management 
group by writing to the following address:

NiSource Inc.
Attention: Board of Directors, Board Member,
non-management directors or Chairman
c/o Corporate Secretary
801 East 86th Avenue
Merrillville, Indiana 46410

Corporate Governance
At NiSource.com, shareholders can view the company’s 
corporate governance guidelines, code of business conduct, 
political spending policy and charters of all board-level 
committees. Copies of these documents are available to 
shareholders without charge upon written request to Corporate 
Secretary at the above address. 

  
 
Company Information

C O R P O R A T E   
H E A D Q U A R T E R S
NiSource Inc.
801 E. 86th Avenue
Merrillville, Indiana 46410
(219) 647-5990
NiSource.com

N I S O U R C E   
C O R P O R A T E   S E R V I C E S
290 W. Nationwide Boulevard
Columbus, Ohio 43215
(614) 460-6000
NiSource.com

C O L U M B I A   G A S   O F   
K E N T U C K Y
2001 Mercer Road
Lexington, Kentucky 40511
Emergency: (800) 432-9515
Customer Care: (800) 432-9345
ColumbiaGasKY.com

C O L U M B I A   G A S   O F   
M A R Y L A N D
121 Champion Way
Canonsburg, Pennsylvania 15317
Emergency: (888) 460-4332
Customer Care: (888) 460-4332
ColumbiaGasMD.com

C O L U M B I A   G A S   O F   
O H I O
290 W. Nationwide Boulevard
Columbus, Ohio 43215 
Emergency: (800) 344-4077
Customer Care: (800) 344-4077
ColumbiaGasOhio.com

C O L U M B I A   G A S   O F 
P E N N S Y L V A N I A
121 Champion Way
Canonsburg, Pennsylvania 15317 
Emergency: (888) 460-4332
Customer Care: (888) 460-4332
ColumbiaGasPA.com

C O L U M B I A   G A S   O F   
V I R G I N I A
1809 Coyote Drive
Chester, Virginia 23836
Emergency: (800) 544-5606
Customer Care: (800) 543-8911
ColumbiaGasVA.com

N I P S C O
801 E. 86th Avenue
Merrillville, Indiana 46410
Customer Care: (800) 464-7726 
Gas Emergency: (800) 634-3524
Electric Emergency: (800) 464-7726
NIPSCO.com

NiSource is a trademark of NiSource Inc. All other trademarks are 
the property of their respective owners. Further information about 
NiSource and its subsidiary companies can be found at NiSource.
com. Information made available on our website does not constitute a 
part of this report. 

© 2024 NiSource Inc.