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Natural Gas Services Group, Inc.

ngs · NYSE Energy
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Industry Oil & Gas Equipment & Services
Employees 245
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FY2022 Annual Report · Natural Gas Services Group, Inc.
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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, 2022
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: 1-31398

NATURAL GAS SERVICES GROUP, INC.
(Exact Name of Registrant as Specified in its Charter)

Colorado
(State or other jurisdiction of incorporation or organization)
404 Veterans Airpark Lane, Suite 300, Midland, Texas
(Address of principal executive offices)
Registrant’s telephone number, including area code:

75-2811855
(I.R.S.  Employer Identification No.)
79705
(Zip Code)
(432) 262-2700

Title of each class
Common Stock, $.01 par value

Securities registered pursuant to Section 12(b) of the Act:
Trading Symbol(s)
NGS

Name of each exchange on which registered
New York Stock Exchange

Securities registered pursuant to section 12(g) of the Act:  None.
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Yes ☐                   No ☒

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

Yes ☐                   No ☒

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 ☒                   No ☐ 

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File to be submitted and posted pursuant to Rule 405
of Regulation S-T (§40232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes ☒                   No ☐

Indicate  by  check  mark  if  disclosure  of  delinquent  filers  pursuant  to  Item  405  of  Regulation  S-K  is  not  contained  herein,  and  will  not  be  contained,  to  the  best  of  registrant’s  knowledge,  in
definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.     
Yes ☐                  No ☒
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.  See definition of “accelerated filer and large
accelerated filer” in Rule 12b-2 of the Exchange Act.  

(Check one):

Large accelerated filer ☐

Accelerated filer   ☐

Non-accelerated filer ☒

Smaller reporting company ☒

Emerging growth company ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ☐                  No ☒

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 registrant 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).                        ☐

The aggregate market value of voting and non-voting common equity held by non-affiliates of the Registrant as of June 30, 2022 was approximately $126,762,559 based on the closing price of
the common stock on that date on the New York Stock Exchange.

At March 28, 2023, there were 12,447,614 shares of the Registrant's common stock outstanding.

Documents incorporated by reference

Certain information called for in Items 10, 11, 12, 13 and 14 of Part III are incorporated by reference to the registrant’s definitive proxy statement for the annual meeting of shareholders expected
to be held on June 15, 2023.

 
 
 
 
FORM 10-K
NATURAL GAS SERVICES GROUP, INC.
TABLE OF CONTENTS

Item No.

Item 1.
Item 1A.
Item 1B.
Item 2.
Item 3.
Item 4.

Item 5.

Item 6.
Item 7.
Item 7A.
Item 8.
Item 9.
Item 9A.
Item 9B.
Item 9C.

Item 10.
Item 11.

Item 12.

Item 13.
Item 14.

Item 15.
Item 16.

Business
Risk Factors
Unresolved Staff Comments
Properties
Legal Proceedings
Mine Safety Disclosures

PART I

PART II

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of
Equity Securities
Reserved
Management’s Discussion and Analysis of Financial Condition and Results of Operations
Quantitative and Qualitative Disclosures About Market Risk
Financial Statements and Supplementary Data
Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
Controls and Procedures
Other Information
Disclosure Regarding Foreign Jurisdictions that Prevent Inspections
PART III

Directors, Executive Officers and Corporate Governance
Executive Compensation
Security Ownership of Certain Beneficial Owners and Management and Related Stockholder
Matters
Certain Relationships and Related Transactions, and Director Independence
Principal Accountant Fees and Services

PART IV

Exhibits and Financial Statement Schedules
Form 10-K Summary
Signatures
Index to Financial Statements

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SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This  Annual  Report  on  Form  10-K  contains  certain  forward-looking  statements,  within  the  meaning  of  Section  27A  of  the  Securities  Act  of
1933  and  Section  21E  of  the  Securities  Exchange  Act  of  1934,  as  amended,  and  information  pertaining  to  us,  our  industry  and  the  oil  and  natural  gas
industry  that  is  based  on  the  beliefs  of  our  management,  as  well  as  assumptions  made  by  and  information  currently  available  to  our  management.   All
statements,  other  than  statements  of  historical  facts  contained  in  this  Annual  Report  on  Form  10-K,  including  statements  regarding  our  future  financial
position, growth strategy, budgets, projected costs, plans and objectives of management for future operations, are forward-looking statements.  We use the
words  “may,”  “will,”  “expect,”  “anticipate,”  “estimate,”  “believe,”  “continue,”  “intend,”  “plan,”  “budget”  and  other  similar  words  to  identify  forward-
looking statements.  You should read statements that contain these words carefully and should not place undue reliance on these statements because they
discuss future expectations, contain projections of results of operations or of our financial condition and/or state other “forward-looking” information.  We
do  not  undertake  any  obligation  to  update  or  revise  publicly  any  forward-looking  statements.   Although  we  believe  our  expectations  reflected  in  these
forward-looking statements are based on reasonable assumptions, no assurance can be given that these expectations or assumptions will prove to have been
correct.  Important factors that could cause actual results to differ materially from the expectations reflected in the forward-looking statements include, but
are not limited to, the following factors and the other factors described in this Annual Report on Form 10-K under the caption “Risk Factors”:

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significant  economic  disruptions  and  adverse  consequences  resulting  from  current  and  possible  long-term  effects  of  the  COVID-19  global
pandemic and its variants;

conditions in the oil and natural gas industry, including the supply and demand for natural gas and wide fluctuations in the prices of oil and natural
gas;

fluctuations in interest rates;

regulation or prohibition of new well completion techniques;

competition among the various providers of compression services and products;

changes in safety, health and environmental regulations;

changes in economic or political conditions in the markets in which we operate;

failure of our customers to continue to rent equipment after expiration of the primary rental term;

the inherent risks associated with our operations, such as equipment defects, malfunctions and natural disasters;

our inability to comply with covenants in our debt agreements and the decreased financial flexibility associated with our debt;

our future capital requirements and availability of financing;

operational, fabrication and manufacturing costs and inflationary pressures;

general economic conditions; and

acts of terrorism;

We  believe  that  it  is  important  to  communicate  our  expectations  of  future  performance  to  our  investors.    However,  events  may  occur  in  the
future that we are unable to accurately predict or that we are unable to control.  When considering our forward-looking statements, you should keep in mind
the risk factors and other cautionary statements in this Annual Report on Form 10-K.

Glossary of Industry Terms

"CiP" - A branded gas compressor product line designed, manufactured and packaged by the Company. The 'Cylinder in Plane' design results in
a compact and vibration-free compressor unit that particularly lends itself to unconventional wellhead applications, air compression and compressed natural
gas requirements.

"flare" –  A tall stack equipped with burners used as a safety device at wellheads, refining facilities, gas processing plants, and chemical plants.
Flares are used for the combustion and disposal of combustible gases. The gases are piped to a remote, usually elevated, location and burned in an open
flame in the open air using a specially designed burner tip, auxiliary fuel, and steam or air. Combustible gases are flared most often due to emergency relief,
overpressure, process upsets, startups,

i

 
shutdowns  and  other  operational  safety  reasons.  Natural  gas  that  is  uneconomical  for  sale  is  also  flared.  Often  natural  gas  is  flared  as  a  result  of  the
unavailability of a method for transporting such gas to markets.

"gas lift" – A production enhancement technique whereby natural gas is injected into an oil well to increase/improve the oil production.

"oil  shale"  –  Also  referred  to  as  tight  oil,  is  petroleum  that  consists  of  light  crude  oil  contained  in  petroleum-bearing  formations  of  low-

permeability, often shale or tight sandstone.

"reciprocating compressors" – A reciprocating compressor is a type of compressor which compresses vapor by using a piston in a cylinder and a

back-and-forth motion.

"screw  compressors"  –  A  type  of  compressor  used  in  low-pressure  and  vapor  compression  applications  where  two  intermesh  rotors  create

pockets of continuously decreasing volume, in which the gas is compressed and its pressure is increased.

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ITEM 1.    BUSINESS

PART I

Unless  the  context  otherwise  requires,  references  in  this  Annual  Report  on  Form  10-K  to  “Natural  Gas  Services  Group,”  the  “Company”,
"NGS", “we,” “us,” “our” or “ours” refer to Natural Gas Services Group, Inc.  Certain specialized terms used in describing our natural gas compressor
business are defined in "Glossary of Industry Terms" on page i.

Smaller Reporting Company

We  are  a  “smaller  reporting  company”  as  defined  by  the  SEC.  As  such,  we  are  eligible  to  comply  with  the  scaled  disclosure  requirements  in

several Regulation S-K and Regulation S-X items. Our disclosures in this Annual Report reflect many of these scaled requirements.

The Company

We are a provider of natural gas compression equipment and services to the energy industry. We manufacture, fabricate, rent, sell and maintain
natural gas compressors and flare systems for oil and natural gas production and plant facilities. We are headquartered in Midland, Texas, with fabrication
facilities located in Tulsa, Oklahoma and Midland, Texas, and service facilities located in major oil and natural gas producing basins in the U.S.

We have shifted our focus over the last several years to medium to large horsepower applications that apply to natural gas associated with oil-
weighted production. Our primary customers are exploration and production companies that utilize our compressor units for artificial lift applications, i.e.,
production enhancement enabled with high-pressure gas compression equipment, on unconventional oil wells on single and multi-well pads. In addition,
our customer base includes oil and natural gas exploration and production ("E&P") companies that are focused on natural gas-weighted production (with
typically smaller horsepower applications) as well as midstream companies. The Company's largest rental area is the Permian Basin (approximately 55.6%
of rental revenues in 2022), with the majority of its remaining rental revenue being generated in other oil and natural gas producing regions and plays in
Texas, New Mexico and Oklahoma, including the San Juan Basin, the Texas Panhandle/western Oklahoma, the Barnett Shale, and central Oklahoma. Other
regions and plays in which we provide service include the Utica and Marcellus Shales, Michigan and the DJ Basin of Colorado.

Our revenue increased 17.1% to $84.8 million for the year ended December 31, 2022 from $72.4 million for the year ended December 31, 2021.
This increase was largely the result of our rental revenues increasing 17.0% to $74.5 million in 2022 from $63.6 million in 2021 as well as sales revenue
increasing  24.5%  to  $8.6  million  in  2022  from  $6.9  million  in  2021.  For  the  year  ended  December  31,  2022,  the  Company  reported  a  net  loss  of  $0.6
million as compared to a net loss of $9.2 million for the year ended December 31, 2021. In addition, the Company's adjusted earnings before interest, taxes,
depreciation and amortization ("EBITDA") increased 55.8% to $29.2 million in 2022 from $18.7 million in 2021. See "Item 7, Management's Discussion
and Analysis of Financial Condition and Results of Operations" for a reconciliation of adjusted EBITDA to its closest GAAP financial measure, net (loss)
income.

At December 31, 2022, our current assets were $54.1 million, which included $3.4 million of cash and cash equivalents.  Current liabilities were

$30.4 million at year end 2022. Our stockholders' equity as of December 31, 2022 was $230.1 million.

Please see "Item 7, Management's Discussion and Analysis of Financial Condition and Results of Operations" for further information.

Our Operating Units

We identify our operating units based upon major revenue sources as Rental, Sales and Service and Maintenance.  

Rental.  Our rental compression units provide small, medium and large horsepower applications for unconventional oil and natural gas production.
Our rental contracts typically provide for initial terms of six to 24 months, with our larger horsepower units having contract terms of up to 60 months. By
outsourcing their compression needs, we believe our customers are able to increase their revenues by producing higher volumes of oil and natural gas due
to  greater  equipment  run  time.  Outsourcing  allows  our  customers  to  reduce  their  compressor  downtime,  operating  and  maintenance  costs,  and  capital
investments,  and  more  efficiently  meet  their  changing  compression  needs.  We  maintain  and  service  all  of  the  compression  equipment  we  rent  to  our
customers.  

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The size, type and geographic diversity of our rental fleet enables us to provide our customers with a range of compression units that can serve a
wide variety of applications, and to select the correct equipment for the job, rather than the customer trying to fit the job to its own equipment. We base our
gas compressor rental rates on several factors, including the cost and size of the equipment, the type and complexity of service desired by the customer, the
length of contract and the inclusion of any other services desired, such as installation, transportation and daily operation.

As  of  December  31,  2022,  we  had  1,869  natural  gas  compressors  in  our  rental  fleet  totaling  425,340  horsepower.    Of  this  total,  we  had  1,221
natural gas compressors totaling 318,350 horsepower rented to 81 customers. The utilization rate of our rental fleet as of December 31, 2022 was 65.3%,
while  our  horsepower  utilization  for  the  same  period  was  74.8%.  We  added  45  units  with  approximately  33,000  horsepower  to  our  fleet  during  2022.
Thirty-five of those units were 400 horsepower or larger, representing approximately 80% of the horsepower added.

Engineered Equipment Sales.  This operating unit includes the following components:

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•

•

•

Compressor  fabrication.    Fabrication  involves  the  design,  fabrication  and  assembly  of  compressor  components  manufactured  by  us  or  other
vendors into compressor units that are ready for rental or sale. In addition to fabricating compressors for our rental fleet, we engineer and fabricate
custom-made natural gas compressors for sale to customers to meet their specifications based on well pressure, production characteristics and the
particular applications for which compression is sought. Fabricated compressors comprised 42.0% and 27.5% of our sales revenue during 2022
and 2021, respectively.

Parts  sales  and  compressor  rebuilds.    To  provide  customer  support  for  our  compressor  and  flare  sales  businesses,  we  stock  varying  levels  of
replacement  parts  at  our  Midland,  Texas  facility  and  at  field  service  locations.  We  also  provide  an  exchange  and  rebuild  program  for  small
horsepower  screw  compressors  and  maintain  an  inventory  of  new  and  used  compressors  to  facilitate  this  part  of  our  business.  Parts  sales  and
compressor rebuilds comprised 55.2% and 67.2% of our sales revenue during 2022 and 2021, respectively.

Flare fabrication.  We design, fabricate, sell, install and service flare stacks and related ignition and control devices for the onshore and offshore
incineration  of  gas  compounds  such  as  hydrogen  sulfide,  carbon  dioxide,  natural  gas  and  liquefied  petroleum  gases.    Applications  for  this
equipment are often environmentally and regulatory driven.

Compressor manufacturing.  We design and manufacture our own proprietary line of reciprocating natural gas compressor frames, cylinders and
parts known as our “CiP”, or Cylinder-in-Plane, product line. We use the finished components to fabricate compressor units for our rental fleet or
for sale to customers.  We also sell finished components to other fabricators.

Service  and  Maintenance.    We  service  and  maintain  compressors  owned  by  our  customers  on  an  “as  needed”  and  contract  basis.  Natural  gas
compressors  require  routine  maintenance  and  periodic  refurbishing  to  prolong  their  useful  life.    Routine  maintenance  includes  physical  and  visual
inspections and other parametric checks that indicate a change in the condition of the compressors.  We perform engine and compressor overhauls on a
condition-based  interval  or  a  time-based  schedule  or  at  the  customer's  request.  Based  on  our  past  experience,  these  maintenance  procedures  maximize
component life and unit availability and minimize downtime.

Business Strategy

Our long-term intentions to grow our revenue and profitability are based on the following business strategies:

•

Expand rental fleet.  We intend to prudently increase the size of our medium and large horsepower rental fleet by fabricating compressor units in
numbers that correspond to pre-contracted agreements with our customers and to market share gains we seek to achieve. We believe our future
growth will be primarily driven through our placement of larger horsepower, centralized wellhead natural gas compressors for unconventional oil
production, with select fabrication of medium horsepower compressors to meet customer demand beyond our inventory.

• Geographic expansion.  We will continue to expand our operations in existing areas, as well as pursue focused expansion into new geographic
regions as opportunities are identified. Our largest rental area is the Permian Basin (approximately 55.6% of rental revenues in 2022), where we
have continued to gain market share and believe we have the most expansion opportunities going forward. The large majority of the Company's
remaining rental revenue is being generated in other oil and natural gas producing regions and plays in Texas, New Mexico and Oklahoma,

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including the San Juan Basin, the Texas Panhandle/western Oklahoma, the Barnett Shale, and central Oklahoma. Other regions and plays in which
we provide service include the Utica and Marcellus Shales, Michigan and the DJ Basin of Colorado.  

•

Selectively pursue acquisitions.  We will continue to evaluate potential acquisitions, joint ventures and other opportunities that could enhance our
current market position, but only those that provide compelling returns to the Company.

All of the above strategies are subject to revisions and adjustments as a result of several factors discussed in Item 1A, Risk Factors.

Competitive Strengths

We believe our competitive strengths include:

•

Superior customer service.  Our availability to provide a broad range of compressors has enabled us to effectively meet the evolving needs of our
customers. We believe this ability, coupled with our personalized services and in-depth knowledge of our customers’ operating needs and growth
plans,  have  allowed  us  to  enhance  our  relationships  with  existing  customers  as  well  as  attract  new  customers.    The  size,  type  and  geographic
diversity of our rental fleet enable us to provide customers with a range of compression units that can serve a wide variety of applications.  We are
able to select the correct equipment for the job, rather than the customer trying to fit its application to our equipment.

• Diversified  product  line.    Our  compressors  are  available  as  low  pressure  rotary  screw  and  higher  pressure  reciprocating  packages.    They  are
designed to meet a number of applications, including compression assisted gas lift on oil wells, wellhead compression on natural gas wells, natural
gas gathering and transmission, and others. In addition, our compressors can be built to handle a variety of gas mixtures, including air, nitrogen,
carbon dioxide, hydrogen sulfide and hydrocarbon gases. A diversified compression product line helps us compete by being able to satisfy widely
varying pressure, volume and production conditions that customers encounter.

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Purpose-built  rental  compressors.    Our  rental  compressor  packages  have  been  designed  and  built  to  address  the  primary  requirements  of  our
customers in the producing regions in which we operate.  Our units are purpose-built but standardized, as the units are compact in design and are
easy, quick and inexpensive to move, install and start-up.  Our control systems are technically advanced, as these systems allow the operator to
monitor as well as start and stop the majority of our units remotely and/or in accordance with well conditions.

Experienced management and operating team.  On average, our executive and operating team members have over 25 years of oilfield services
and  other  energy  industry  experience.  We  believe  our  management  and  operating  team  has  successfully  demonstrated  its  ability  to  grow  our
business during times of expansion and to manage through downturns.

Broad geographic presence.  We presently provide our products and services to a customer base of oil and natural gas exploration and production
companies  operating  in  Texas,  New  Mexico,  Oklahoma,  Pennsylvania,  West  Virginia,  Ohio,  Michigan,  Colorado  and  Wyoming.    Our  footprint
allows us to service many of the largest oil and natural gas producing regions in the United States.  We believe that operating in diverse geographic
regions allows us better utilization of our compressors, minimal incremental expenses, operating synergies, volume-based purchasing, leveraged
inventories and cross-trained personnel.

Long-standing  customer  relationships.    We  have  developed  long-standing  relationships  providing  compression  equipment  to  many  major  and
independent oil and natural gas companies.  Our customers generally continue to rent our compressors after the expiration of the initial terms of
our rental agreements, which we believe reflects their satisfaction with the reliability and performance of our services and products.

Overview and Outlook

The  market  for  compression  equipment  and  services  is  dependent  on  the  condition  of  the  oil  and  natural  gas  industry,  including  the  capital
expenditure budgets of domestic oil and gas companies. The level of activity and capital expenditures has generally been dependent upon the prevailing
view of future gas and oil prices, which are influenced by numerous supply and demand factors, including availability and cost of capital, well productivity
and development costs, global and domestic economic conditions, environmental regulations, policies of OPEC countries and Russia, and other factors. In
addition, while overall capital budgets of E&P companies have increased relative to 2021, overall capital expenditure budgets of energy companies have
become significantly more constrained over the last several years due to the deterioration of energy equity markets and strong demands from institutional
investors that companies keep capital spending within operating cash flow and

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return capital through dividends and share repurchases. While our rental agreements are not typically capital in nature, overall capital investment typically
drives  our  customers  demand  for  incremental  compression  needs.  Oil  and  natural  gas  prices  and  the  level  of  development  and  production  activity  have
historically been characterized by significant volatility. 

Finally, due to supply chain disruptions as a result of the COVID-19 pandemic and the Russian invasion of the Ukraine and the increased rate of
inflation, we continue to experience cost increases and sporadic unavailability of many of our parts needed to fabricate and maintain our rental fleet. While
we have a robust supplier network, pricing pressure from our customers and competitors presents challenges in increasing our rental rates to offset these
increased costs. We believe our relationship with our major customer identified below continues to be strong, and it has continued to pay our invoices in a
timely, consistent manner. Nevertheless, if any of these circumstances change, our business could be adversely affected. Please read Item 1A, Risk Factors,
in this report.

Major Customer

Sales and rental income to Occidental Permian, LTD. ("Oxy") for the years ended December 31, 2022 and 2021 amounted to 42% and 40% of our

revenue, respectively. No other single customer accounted for more than 10% of our revenues in 2022 or 2021.

Oxy amounted to 55% of our accounts receivable as of December 31, 2022 and 46% of our accounts receivable as of December 31, 2021. No
other customers amounted to more than 10% of our accounts receivable as of December 31, 2022 or 2021. The loss of this key customer would have a
material adverse effect on our business, financial condition, results of operations and cash flows, depending upon the demand for our compressors at the
time of such loss and our ability to attract new customers.

Sales and Marketing

Our  sales  force  pursues  the  rental  and  sales  market  for  compressors  and  flare  equipment  and  other  services  in  their  respective
territories. Additionally, our personnel coordinate with each other to develop relationships with customers who operate in multiple regions. Our sales and
marketing strategy is focused on communication with current customers and potential customers through frequent direct contact, technical assistance, print
literature, direct mail and referrals. Our sales and marketing personnel coordinate with our operations personnel in order to promptly respond to and address
customer needs.  Our overall sales and marketing efforts concentrate on demonstrating our commitment to enhancing the customer’s cash flow through
enhanced product design, fabrication, manufacturing, installation, operations, customer service and support.

Competition

We have a number of competitors in the natural gas compression segment, some of which have greater financial resources. We believe that we
compete effectively on the basis of price, customer service, including the ability to place personnel in remote locations, flexibility in meeting customer
needs, and quality and reliability of our compressors and related services.

Compressor  industry  participants  can  achieve  significant  advantages  through  increased  size  and  geographic  breadth. As  the  number  of  rental
compressors in our rental fleet increases, the number of sales, support, and maintenance personnel required and the minimum level of inventory do not
increase proportionately.

Backlog

As of December 31, 2022, we had no sales backlog compared to $1.5 million as of December 31, 2021. Sales backlog consists of firm customer
orders for which a purchase or work order has been received, satisfactory credit or a financing arrangement exists, and delivery is scheduled. In addition,
the major components of our compressors are acquired from suppliers through periodic purchase orders that currently require three to six months of lead
time prior to delivery of the order.

Employees

As of December 31, 2022, we had 266 total employees, none of which are represented by a labor union. We believe we have good relations with

our employees.

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Liability and Other Insurance Coverage

Our equipment and services are provided to customers who are subject to hazards inherent in the oil and natural gas industry, such as explosions,
fires, and oil spills. We maintain liability insurance that we believe is customary in the industry and which includes environmental cleanup, but excludes
product warranty insurance because the majority of components on our compressor unit are covered by the manufacturers. We also maintain insurance with
respect to our facilities. Based on our historical experience, we believe that our insurance coverage is adequate. However, there is a risk that our insurance
may not be sufficient to cover any particular loss or that insurance may not cover all losses. In addition, insurance rates have in the past been subject to
wide fluctuation, and changes in coverage could result in less coverage, increases in cost or higher deductibles and retentions.

Government Regulation

All of our operations and facilities are subject to numerous federal, state, foreign and local laws, rules and regulations related to various aspects of
our business, including containment and disposal of hazardous materials, water quality and wastewater discharges, oilfield waste and other waste materials
and protection of human health.

To date, we have not been required to expend significant resources in order to satisfy applicable environmental laws and regulations. We do not
anticipate  any  material  capital  expenditures  for  environmental  control  facilities  or  extraordinary  expenditures  to  comply  with  environmental  rules  and
regulations in the foreseeable future. However, compliance costs under existing laws or under any new requirements could become material and we could
incur liabilities for noncompliance. And as noted below, we may be indirectly affected by environmental laws that affect our customers.

Our business is generally affected by political developments and by federal, state, foreign and local laws and regulations, which relate to the oil
and  natural  gas  industry. The  adoption  of  laws  and  regulations  affecting  the  oil  and  natural  gas  industry  for  economic,  environmental  and  other  policy
reasons could increase our costs and could have an adverse effect on our operations. The state and federal environmental laws and regulations that currently
apply to our operations could become more stringent in the future.

We have utilized operating and disposal practices that were or are currently standard in the industry. However, materials such as solvents, thinner,
waste paint, waste oil, wash down waters and sandblast material may have been disposed of or released in or under properties currently or formerly owned
or operated by us or our predecessors. In addition, some of these properties have been operated by third parties over whom we have no control either as to
such entities' treatment of materials or the manner in which such materials may have been disposed of or released.

The federal Comprehensive Environmental Response Compensation and Liability Act of 1980, commonly known as CERCLA, and comparable

state statutes impose strict liability on:

•

•

owners and operators of sites, and

persons who disposed of or arranged for the disposal of "hazardous substances" found at sites.

The  modification  of  existing  laws  or  regulations  or  the  adoption  of  new  laws  or  regulations  that  result  in  the  curtailment  of  exploratory  or
developmental drilling for oil and gas could materially and adversely affect our operations by discouraging our customers from drilling for hydrocarbons,
disrupting revenue through permitting or similar delays. For example, on January 20, 2021, the Acting Secretary for the Department of the Interior signed
an order effectively suspending new fossil fuel leasing and permitting on federal lands, including in the US Gulf of Mexico, for 60 days. Then on January
27, 2021, President Biden issued an executive order indefinitely suspending new oil and natural gas leases on public lands or in offshore waters pending
completion of a comprehensive review and reconsideration of federal oil and gas permitting and leasing practices. Demand for our compression products
and  services  could  be  diminished  in  connection  with  these  initiatives.  Further,  to  the  extent  that  the  review  results  in  the  development  of  additional
restrictions  on  exploration  and  drilling,  limitations  on  the  availability  of  leases,  or  restrictions  on  the  ability  to  obtain  required  permits,  it  could  have  a
material adverse impact on our operations by reducing our customers’ compression needs and the demand for our services.

Further,  as  discussed  below  under  the  heading  "Climate  Change",  President  Biden  has  announced  that  he  intends  to  take  aggressive  action  to

address climate-related issues and to set the United States on a path to be carbon-neutral by 2050.

5

Waste Management and Disposal

The  federal  Resource  Conservation  and  Recovery  Act  ("RCRA")  and  analogous  state  laws  and  their  implementing  regulations  govern  the
generation, transportation, treatment, storage and disposal of hazardous and non-hazardous solid wastes. During the course of our operations, we generate
wastes  (including,  but  not  limited  to,  used  oil,  antifreeze,  filters,  paints  and  solvents)  in  quantities  regulated  under  RCRA.  The  EPA  and  various  state
agencies have limited the approved methods of disposal for these types of wastes. CERCLA and analogous state laws and their implementing regulations
impose strict, and under certain conditions, joint and several liability without regard to fault or the legality of the original conduct on classes of persons
who are considered to be responsible for the release of a hazardous substance into the environment. These persons include current and past owners and
operators of the facility or disposal site where the release occurred and any company that transported, disposed of, or arranged for the transport or disposal
of the hazardous substances released at the site. Under CERCLA, such persons may be subject to joint and several liability for the costs of cleaning up the
hazardous substances that have been released into the environment, for damages to natural resources and for the costs of certain health studies. In addition,
where contamination may be present, it is not uncommon for neighboring landowners and other third parties to file claims for personal injury, property
damage and recovery of response costs allegedly caused by hazardous substances or other pollutants released into the environment.

We currently own or lease, and in the past have owned or leased, a number of properties that have been used in support of our operations for a
number  of  years.  Although  we  have  utilized  operating  and  disposal  practices  that  were  standard  in  the  industry  at  the  time,  hydrocarbons,  hazardous
substances, or other regulated wastes may have been disposed of or released on or under the properties owned or leased by us or on or under other locations
where such materials have been taken for disposal by companies sub-contracted by us. In addition, some of these properties may have been previously
owned or operated by third parties whose treatment and disposal or release of hydrocarbons, hazardous substances or other regulated wastes was not under
our control. These properties and the materials released or disposed thereon may be subject to CERCLA, RCRA and analogous state laws. Under such
laws, we could be required to remove or remediate historical property contamination, or to perform certain operations to prevent future contamination. We
are not currently under any order requiring that we undertake or pay for any cleanup activities. However, we cannot provide any assurance that we will not
receive any such order in the future.

The Clean Water Act ("CWA") and the Oil Pollution Act of 1990 and implementing regulations govern:

•

•

the prevention of discharges, including oil and produced water spills, and

liability for drainage into waters.

The CWA and analogous state laws impose restrictions and strict controls with respect to the discharge of pollutants, including spills and leaks of
oil and other substances, into waters of the United States. The discharge of pollutants into regulated waters and wetlands is prohibited, except in accordance
with the terms of a permit issued by the EPA or an analogous state agency. The CWA also requires the development and implementation of spill prevention,
control and countermeasures to help prevent the contamination of navigable waters in the event of a petroleum hydrocarbon spill or leak at hydrocarbon
facilities. In addition, the CWA and analogous state laws require individual permits or coverage under general permits for discharges of storm water runoff
from certain types of facilities. Federal and state regulatory agencies can impose administrative, civil and criminal penalties as well as other enforcement
mechanisms  for  non-compliance  with  discharge  permits  or  other  requirements  of  the  CWA  and  analogous  state  laws  and  regulations.  Our  compression
operations  do  not  generate  process  wastewaters  that  are  discharged  to  waters  of  the  U.S.  However,  the  operations  of  our  customers  may  generate  such
wastewaters subject to the CWA. While it is the responsibility of our customers to follow CWA regulations and obtain proper permits, violations of the
CWA may indirectly impact our operations in a negative manner.

Safe Drinking Water Act. Some of our customers’ natural gas production is developed from unconventional sources that require hydraulic fracturing as part
of  the  completion  process.  Legislation  to  amend  the  Safe  Drinking  Water  Act  (“SDWA”)  to  repeal  the  exemption  for  hydraulic  fracturing  from  the
definition  of  “underground  injection”  and  require  federal  permitting  and  regulatory  control  of  hydraulic  fracturing,  as  well  as  legislative  proposals  to
require  disclosure  of  the  chemical  constituents  of  the  fluids  used  in  the  fracturing  process,  have  been  proposed  from  time  to  time  and  the  federal
government  continues  to  consider  legislation  to  amend  the  SDWA.  Some  states  have  also  proposed  or  adopted  legislative  or  regulatory  restrictions  on
hydraulic fracturing, including prohibitions on the practice. We cannot predict the future of such legislation and what additional, if any, provisions would be
included. Additional levels of regulation or interpretation are adopted at the federal or state level could lead to increased operating costs and prohibitions or
curtailment  of  current  hydraulic  practices  could  reduce  demand  for  our  compression  services,  which  could  materially  adversely  affect  our  results  of
operations and financial position.

6

 
 
 
Air Emissions

Our operations are also subject to federal, state, and local regulations. The Clean Air Act and implementing regulations and comparable state laws
and  regulations  regulate  emissions  of  air  pollutants  from  various  industrial  sources  and  also  impose  various  monitoring  and  reporting  requirements,
including  requirements  related  to  emissions  from  certain  stationary  engines,  such  as  those  on  our  compressor  units.  These  laws  and  regulations  impose
limits on the levels of various substances that may be emitted into the atmosphere from our compressor units and require us to meet more stringent air
emission standards and install new emission control equipment on all of our engines built after July 1, 2008.

For  instance,  in  2010,  the  U.S.  Environmental  Protection  Agency  (“EPA”)  published  new  regulations  under  the  CAA  to  control  emissions  of
hazardous  air  pollutants  from  existing  stationary  reciprocal  internal  combustion  engines.  In  2012,  the  EPA  proposed  amendments  to  the  final  rule  in
response to several petitions for reconsideration, which were finalized and became effective in 2013. The rule requires us to undertake certain expenditures
and  activities,  including  purchasing  and  installing  emissions  control  equipment  on  certain  compressor  engines  and/or  purchasing  certified  engines  from
complaint manufacturers.

In recent years, the EPA has lowered the National Ambient Air Quality Standard (“NAAQs”) for several air pollutants. For example, in 2013, the
EPA  lowered  the  annual  standard  for  fine  particulate  matter  from  15  to  12  micrograms  per  cubic  meter.  In  2015,  the  EPA  published  the  final  rule
strengthening the standards for ground level ozone, and the states are expected to establish revised attainment/non-attainment regions. State implementation
of  the  revised  NAAQS  could  result  in  stricter  permitting  requirements,  delay  or  prohibit  our  customers’  ability  to  obtain  such  permits,  and  result  in
increased  expenditures  for  pollution  control  equipment,  which  could  negatively  impact  our  customers’  operations  by  increasing  the  cost  of  additions  to
equipment, and negatively impact our business.

In 2012, the EPA finalized rules that establish new air emission controls for oil and natural gas production and natural gas processing operations.
Specifically, the EPA’s rule package included New Source Performance Standards to address emissions of sulfur dioxide and volatile organic compounds
(“VOCs”)  and  a  separate  set  of  emission  standards  to  address  hazardous  air  pollutants  frequently  associated  with  oil  and  natural  gas  production  and
processing activities. The rules established specific new requirements regarding emissions from compressors and controls at natural gas processing plants,
dehydrators, storage tanks and other production equipment as well as the first federal air standards for natural gas wells that are hydraulically fractured. The
EPA  has  taken  a  number  of  steps  to  amend  or  expand  on  these  regulations  since  2012.  For  example,  in  June  2016,  the  EPA  published  New  Source
Performance  Standards  that  require  certain  new,  modified  or  reconstructed  facilities  in  the  oil  and  natural  gas  sector  to  reduce  methane  gas  and  VOC
emissions. These standards expanded the 2012 standards by using certain equipment-specific emissions control practices, requiring additional controls for
pneumatic  controllers  and  pumps  as  well  as  compressors,  and  imposing  leak  detection  and  repair  requirements  for  natural  gas  compressor  and  booster
stations. In addition, in November 2021, the EPA proposed a rule to further reduce methane and VOC emissions from new and existing sources in the oil
and gas sector. These standards, as well as any future laws and their implementing regulations, may impose stringent air permit requirements, or mandate
the use of specific equipment or technologies to control emissions. We cannot predict the final regulatory requirements or the cost to comply with such
requirements with any certainty.

We are also subject to air regulation at the state level. For example, sources of air emissions within Texas are controlled by the Texas Commission
on Environmental Quality (“TCEQ”). Air emission sources that emit at greater than de minimis levels must obtain a permit prior to operation through the
TCEQ. In addition, TCEQ has implemented revisions to certain air permit programs that significantly increase the air permitting requirements for new and
certain existing oil and gas production and gathering sites for a number of counties in the Barnett Shale production area that established new emissions
standards for engines, which impact the operation of specific categories of engines by requiring the use of alternative engines, compressor packages or the
installation of aftermarket emissions control equipment. Expansion by the TCEQ of this type of program and the adoption of similar regulations in other
states may increase our compliance costs.

Climate Change

In  response  to  findings  that  emissions  of  carbon  dioxide,  methane  and  other  Greenhouse  Gases  (“GHG”)  endanger  public  health  and  the
environment,  federal  legislation  has  been  drafted  in  Congress  to  reduce  GHG  emissions.  At  the  federal  level,  the  government  could  seek  to  pursue
legislative, regulatory or executive initiatives that may impose significant restrictions on fossil-fuel exploration and production and use such as limitations
or  bans  on  hydraulic  fracturing  of  oil  and  gas  wells,  bans  or  restrictions  on  new  leases  for  production  of  minerals  on  federal  properties,  and  imposing
restrictive requirements on new pipeline infrastructure or fossil-fuel export facilities. Other energy legislation and initiatives could include a carbon tax,
methane fee or cap and trade program. At the state level, many states, including the states in which we or our customers conduct operations, have adopted
legal  requirements  that  have  imposed  new  or  more  stringent  permitting,  disclosure  or  well  construction  requirements  on  oil  and  gas  activities.  Further,
although Congress has not passed such legislation, almost half of

7

 
 
the  states  have  begun  to  address  GHG  emissions,  primarily  through  the  planned  development  of  emissions  inventories  or  regional  GHG  cap  and  trade
programs.  Depending  on  the  particular  program,  we  could  be  required  to  control  GHG  emissions  or  to  purchase  and  surrender  allowances  for  GHG
emissions  resulting  from  our  operations.  The  EPA  has  adopted  regulations  under  existing  provisions  of  the  CAA  that,  among  other  things,  establish
construction and operating permit reviews for GHG emissions of certain large GHG emissions sources, including petroleum and natural gas facilities, such
as natural gas transmission compression facilities that emit 25,000 metric tons or more of carbon dioxide equivalent per year. In addition, the Department
of Transportation (the “DOT”) has implemented GHG emissions limits on vehicles manufactured for operation in the United States.

At  the  international  level,  there  is  an  agreement,  the  United  Nations-sponsored  “Paris  Agreement,”  for  nations  to  limit  their  GHG  emissions
through non-binding, individually-determined reduction goals every five years after 2020. President Biden pledged the renewed participation of the United
States on his first day in office. In November 2021, the United States participated in the United Nations Climate Change Conference in Glasgow, Scotland,
United Kingdom that resulted in a pact among approximately 200 countries, including the United States, called the Glasgow Climate Pact. Relatedly, the
United States and European Union jointly announced the launch of the “Global Methane Pledge,” which aims to cut global methane pollution at least 30%
by 2030 relative to 2020 levels, including “all feasible reductions” in the energy sector. In conjunction with these pacts, the United States committed to an
economy-wide target of reducing net greenhouse gas emissions by 50-52 percent below 2005 levels by 2030. Also in November 2021, President Biden
signed a $1 trillion dollar infrastructure bill into law. The new infrastructure law includes several climate-focused investments, including upgrades to power
grids to accommodate increased use of renewable energy and expansion of electric vehicle infrastructure. Although it is not possible at this time to predict
what additional domestic legislation may be adopted in light of the Paris Agreement or the Glasgow Climate Pact, or how legislation or new regulations
that may be adopted based on the Paris Agreement or the Glasgow Climate Pact to address GHG emissions would impact our business, any such future
laws and regulations imposing reporting obligations on, or limiting emissions of GHGs from, our compressors could require us to incur costs to reduce
emissions of GHGs associated with our operations and could decrease demand for oil and natural gas.

Additionally, various states and groups of states have adopted or are considering adopting legislation, regulations or other regulatory initiatives
that are focused on such areas as GHG cap and trade programs, carbon taxes, reporting and tracking programs, and restriction of emissions. For example, in
2019,  Colorado  passed  a  bill  which  delegates  authority  to  local  governments  to  regulate  oil  and  gas  activities  and  requires  the  Colorado  Oil  and  Gas
Conservation Commission to minimize emissions of methane and other air contaminants. Likewise, the New Mexico Environment Department has adopted
regulations to restrict the venting or flaring of methane.

Litigation risks are also increasing, as a number of cities and other local governments have sought to bring suit against the largest oil and natural
gas  exploration  and  production  companies  in  state  or  federal  court,  alleging,  among  other  things,  that  such  companies  created  public  nuisances  by
producing fuels that contributed to global warming effects, such as rising sea levels, and therefore are responsible for roadway and infrastructure damages,
or alleging that the companies have been aware of the adverse effects of climate change for some time but defrauded their investors by failing to adequately
disclose those impacts.

There are also increasing financial risks for fossil fuel producers and oil and gas field service providers (such as the Company) as shareholders
currently invested in fossil-fuel energy and related service companies concerned about the potential effects of climate change may elect in the future to shift
some or all of their investments into non-energy related sectors. Institutional lenders who provide financing to fossil-fuel energy and related companies also
have  become  more  attentive  to  sustainable  lending  practices  and  some  of  them  may  elect  not  to  provide  funding  for  fossil  fuel  energy  companies.
Additionally, the lending practices of institutional lenders have been the subject of intensive lobbying efforts in recent years, oftentimes public in nature, by
environmental activists, proponents of the international Paris Agreement, and foreign citizenry concerned about climate change not to provide funding for
fossil fuel producers. Limitation of investments in and financings for fossil fuel energy companies could result in the restriction, delay or cancellation of
drilling programs or development or production activities of our customers, which in turn could have a material adverse effect on our compressor rental and
sale business.

The adoption and implementation of new or more stringent international, federal or state legislation, regulations or other regulatory initiatives that
impose more stringent standards for GHG emissions from the oil and natural gas sector or otherwise restrict the areas in which this sector may produce oil
and natural gas or generate GHG emissions could result in increased costs of compliance or additional operating restrictions or reduced demand for our
compressor products and services, and could have a material adverse effect on our business, financial condition and results of operations.

We believe that our existing environmental control procedures are adequate and that we are in substantial compliance with environmental laws and
regulations, and the phasing in of emission controls and other known regulatory requirements should not have a material adverse affect on our financial
condition or operational results. However, it is possible that future developments, such as new or increasingly strict requirements and environmental laws
and enforcement policies there under,

8

could lead to material costs of environmental compliance by us. While we may be able to pass on the additional cost of complying with such laws to our
customers, there can be no assurance that attempts to do so will be successful.  Some risk of environmental liability and other costs are inherent in the
nature of our business, however, and there can be no assurance that environmental costs will not rise.    

To the extent that new laws or other governmental actions restrict the energy industry or impose additional environmental protection requirements
that result in increased costs to the oil and gas industry, we could be adversely affected. We cannot determine to what extent our future operations and
earnings may be affected by new legislation, new regulations or changes in existing regulations.

Occupational Safety and Health 

We are subject to the requirements of Occupational Safety and Health Administration ("OSHA") and comparable state statutes. These laws and the
implementing  regulations  strictly  govern  the  protection  of  the  health  and  safety  of  employees.  The  OSHA  hazard  communication  standard,  the  EPA
community  right-to-know  regulations  under  Title  III  of  CERCLA,  and  similar  state  statutes  require  that  we  maintain  and/or  disclose  information  about
hazardous  materials  used  or  produced  in  our  operations.  We  believe  that  we  are  in  compliance  with  these  applicable  requirements  and  with  other
comparable laws.
Patents, Trademarks and Other Intellectual Property

We believe that the success of our business depends more on the technical competence, creativity and marketing abilities of our employees than on
any  individual  patent,  trademark,  or  copyright.  Nevertheless,  as  part  of  our  ongoing  research,  development  and  manufacturing  activities,  we  may  seek
patents when appropriate on inventions concerning new products and product improvements. Although we continue to use technology that was previously
covered by a patent and consider it useful in certain applications, we do not consider the expired patent to be material to our business as a whole.

Suppliers and Raw Materials

Fabrication of our rental compressors involves the purchase by us of engines, compressors, coolers and other components, and the assembly of
these components on skids for delivery to customer locations. These major components of our compressors are acquired through periodic purchase orders
placed with third-party suppliers on an "as needed" basis, which typically requires a three to six month lead time with delivery dates scheduled to coincide
with  our  estimated  production  schedules.  Although  we  do  not  have  formal  continuing  supply  contracts  with  any  major  supplier,  we  believe  we  have
adequate alternative sources available. In the past, we have not experienced any sudden and dramatic increases in the prices of the major components for
our compressors. However, the occurrence of such an event could have a material adverse effect on the results of our operations and financial condition,
particularly if we are unable to increase our rental rates and sale prices proportionate to any such component price increases.

In  addition,  the  COVID-19  outbreak  and  subsequent  supply  chain  disruptions  has  increased  the  risk  that  our  suppliers  may  be  prevented  from
conducting  their  business  at  sufficient  levels  to  provide  us  with  necessary  equipment  and  supplies  in  a  timely  and  sufficient  amount.  While  we  have
experienced  no  significant  supply  disruptions  that  materially  disrupted  operations,  to  the  extent  we  have  difficulties  in  obtaining  needed  products  and
supplies in a timely manner, our results of operations and financial position may be adversely affected.

Available Information

We use our website as a channel of distribution for Company information. We make available free of charge on the Investor Relations section of
our website ( www.ngsgi.com ) our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K. We also make
available through our website other reports filed with or furnished to the SEC under the Securities Exchange Act of 1934, as amended, including our proxy
statements and reports filed by officers and directors under Section 16(a) of the Exchange Act, as well as our Code of Business Ethics and the charters to
our various Committees of our Board of Directors. Paper copies of our filings are also available, without charge upon written request. Please mail requests
to Natural Gas Services Group, Inc., 404 Veterans Airpark Lane, Suite 300, Midland, TX 79705. The information contained on our website is not part of
this Report.

9

ITEM 1A.    RISK FACTORS

You should carefully consider the following risks associated with owning our common stock. Although the risks described below are the risks that
we  believe  are  material,  they  are  not  the  only  risks  relating  to  our  industry,  our  business  and  our  common  stock.  Additional  risks  and  uncertainties,
including those that we have not yet identified or that we currently believe are immaterial, may also adversely affect our business, financial condition or
results of operations.

Risks Associated With Our Industry

Decreased oil and natural gas prices and oil and gas industry expenditure levels adversely affect our revenue.

Our revenue is derived primarily from expenditures in the oil and natural gas industry, which, in turn, are based on budgets to explore for, develop
and produce oil and natural gas. When these expenditures decline, as they have at various times during the past several years, our revenue will suffer. The
industry’s  willingness  to  explore  for,  develop  and  produce  oil  and  natural  gas  depends  largely  upon  the  prevailing  view  of  future  oil  and  natural  gas
prices. Prices for oil and natural gas historically have been, and are likely to continue to be, highly volatile. Many factors affect the supply and demand for
oil and natural gas and, therefore, influence oil and natural gas prices, including:

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•

•

•

•

•

•

•

•

•

•

•

•

•

the level of oil and natural gas production;

the level of oil and natural gas inventories;

domestic and worldwide demand for oil and natural gas;

the expected cost of developing new reserves;

the cost of producing oil and natural gas;

the level of drilling and completions activity;

inclement weather;

domestic and worldwide economic activity;

regulatory and other federal and state requirements in the United States;

the ability of the Organization of Petroleum Exporting Countries, national oil companies and other large producers to set and maintain production
levels and prices for oil;

political conditions in or affecting oil and natural gas producing countries;

terrorist activities in the United States and elsewhere;

the cost of developing alternative energy sources;

environmental regulation; and

tax policies.

Our  rental  contracts  are  generally  short-term,  and  oil  and  natural  gas  companies  tend  to  respond  quickly  to  upward  or  downward  changes  in
prices. Any prolonged reduction in drilling and production activities historically has reduced our compressor sales and materially eroded both rental pricing
and utilization rates for our equipment and services and adversely affects our financial results. As a result of any such prolonged reductions, we may suffer
losses, be unable to make necessary capital expenditures and be unable to meet our financial obligations.

The intense competition in our industry could result in reduced profitability and loss of market share for us.

We compete with the oil and natural gas industry’s largest equipment and service providers who have greater name recognition than we do. These
companies  also  have  substantially  greater  financial  resources,  larger  operations  and  greater  budgets  for  marketing,  research  and  development  than  we
do. They  may  be  better  able  to  compete  because  of  their  broader  geographic  dispersion  and  ability  to  take  advantage  of  international  opportunities,  the
greater  number  of  compressors  in  their  fleet  or  their  product  and  service  diversity.  As  a  result,  we  could  lose  customers  and  market  share  to  those
competitors. These companies may also be better positioned than us to successfully endure downturns in the oil and natural gas industry.

Our operations may be adversely affected if our current competitors or new market entrants introduce new products or services with better prices,

features, performance or other competitive characteristics than our products and

10

services. Competitive pressures or other factors also may result in significant price competition that could harm our revenue and our business. Additionally,
we may face competition in our efforts to acquire other businesses.

Adverse macroeconomic and business conditions may significantly and negatively affect our results of operations.

As  a  result  of  the  COVID-19  outbreak  and  other  economic  conditions  in  the  United  States  and  abroad,  our  revenue  and  profitability  has  been
adversely affected. The condition of domestic and global financial markets and the potential for disruption and illiquidity in the credit markets could have
an  adverse  effect  on  our  operating  results  and  financial  condition,  and  if  sustained  for  an  extended  period,  such  adverse  effects  could  also  become
significant.  Uncertainty  and  turmoil  in  the  credit  markets  may  negatively  impact  the  ability  of  our  customers  to  finance  purchases  of  our  products  and
services and could result in a decrease in, or cancellation of, orders included in our backlog or adversely affect the collectability of our receivables. If the
availability of credit to our customers is reduced, they may reduce their drilling and production expenditures, thereby decreasing demand for our products
and services, which could have a negative impact on our financial condition. A prolonged period of depressed prices for oil and natural gas would likely
result in delays or cancellation of projects by our customers, reducing the demand for our products and services.

Additionally, if we are not able to pass along increases to our costs due to inflation on parts, fluids, labor and other aspects of our business, it may

adversely affect our results of operations and cash flows.

A reduction in demand for oil could adversely affect our business.

Our results of operations depend upon the level of activity in the energy market, including oil development, production, and transportation. Oil
and natural gas prices and the level of drilling and exploration activity can be volatile. As a result, the demand for our natural gas compression services will
be  adversely  affected.  A  reduction  in  demand  has,  and  could  continue  to,  force  us  to  reduce  our  pricing  substantially.  Additionally,  our  customers’
production from oil-weighted reserves constitutes the majority percentage of our business. These unconventional sources are generally less economically
feasible  to  be  developed  in  low  oil  price  environments.  A  decline  in  demand  for  oil  and  natural  gas  generally  has  an  adverse  effect  on  our  business,
financial condition and results of operations.

Our industry is highly cyclical, and our results of operations may be volatile.

Our industry is highly cyclical, with periods of high demand and high pricing followed by periods of low demand and low pricing.  Periods of low
demand intensify the competition in the industry and often result in rental equipment being idle for long periods of time. We have been required to enter
into lower rate rental contracts in response to market conditions and our rentals and sales revenue have decreased as a result of such conditions. Due to the
short-term nature of most of our rental contracts, changes in market conditions can quickly affect our business. As a result of the cyclicality of our industry,
we anticipate our results of operations will be volatile in the future.

Increased regulation or ban of current fracturing techniques could reduce demand for our compressors.

From time to time, for example, legislation has been proposed in Congress to amend the federal Safe Drinking Water Act (“SDWA”) to require
federal  permitting  of  hydraulic  fracturing  and  the  disclosure  of  chemicals  used  in  the  hydraulic  fracturing  process.  Further,  the  EPA  completed  a  study
finding that hydraulic fracturing could potentially harm drinking water resources under adverse circumstances such as injection directly into groundwater
or  into  production  wells  lacking  mechanical  integrity.  Further,  legislation  to  amend  the  SDWA  to  repeal  the  exemption  for  hydraulic  fracturing  (except
when diesel fuels are used) from the definition of “underground injection” and require federal permitting and regulatory control of hydraulic fracturing, as
well as legislative proposals to require disclosure of the chemical constituents of the fluids used in the fracturing process, have been proposed in recent
sessions  of  Congress.  Several  states  and  local  jurisdictions  also  have  adopted  or  are  considering  adopting  regulations  that  could  restrict  or  prohibit
hydraulic  fracturing  in  certain  circumstances,  impose  more  stringent  operating  standards  and/or  require  the  disclosure  of  the  composition  of  hydraulic
fracturing fluids. While we do not perform hydraulic fracturing, many of our customers do and their activity level drives demand for our products.

More recently, federal and state governments have begun investigating whether the disposal of produced water into underground injection wells
has caused increased seismic activity in certain areas. The results of these studies could lead federal and state governments and agencies to develop and
implement additional regulations.

A ban of hydraulic fracturing would likely halt some projects, including unconventional projects, at least temporarily. Expanded regulations are
likely  to  introduce  a  period  of  uncertainty  as  companies  determine  ways  to  proceed.   Any  curtailment  could  result  in  a  reduction  of  demand  for  our
compressors, potentially affecting both sales and rentals of our units.

11

 
 
We are subject to extensive environmental laws and regulations that could require us to take costly compliance actions that could harm our financial
condition.

Our  fabrication  and  maintenance  operations  are  significantly  affected  by  stringent  and  complex  federal,  state  and  local  laws  and  regulations
governing the discharge of substances into the environment or otherwise relating to environmental protection.  In these operations, we generate and manage
hazardous  wastes  such  as  solvents,  thinner,  waste  paint,  waste  oil,  wash  down  wastes,  and  sandblast  material.    We  attempt  to  use  generally  accepted
operating  and  disposal  practices  and,  with  respect  to  acquisitions,  will  attempt  to  identify  and  assess  whether  there  is  any  environmental  risk  before
completing an acquisition.  Based on the nature of the industry, however, hydrocarbons or other wastes may have been disposed of or released on or under
properties owned or leased by us or on or under other locations where such wastes have been taken for disposal.  The waste on these properties may be
subject to federal or state environmental laws that could require us to remove the wastes or remediate sites where they have been released.  We could be
exposed  to  liability  for  cleanup  costs,  natural  resource  and  other  damages  as  a  result  of  our  conduct  or  the  conduct  of,  or  conditions  caused  by,  prior
owners, lessees or other third parties.  Environmental laws and regulations have changed in the past, and they are likely to change in the future.  If current
existing regulatory requirements or enforcement policies change, we may be required to make significant unanticipated capital and operating expenditures.

Any failure by us to comply with applicable environmental laws and regulations may result in governmental authorities taking actions against our

business that could harm our operations and financial condition, including the:

•

•

•

•

issuance of administrative, civil and criminal penalties;

denial or revocation of permits or other authorizations;

reduction or cessation in operations; and

performance of site investigatory, remedial or other corrective actions.

Increasing attention to environmental, social and governance matters and future related reporting requirements may impact our business, financial
results and stock price.

In  recent  years,  increasing  attention  has  been  given  to  corporate  activities  related  to  environmental,  social  and  governance  (“ESG”)  matters  in
public discourse and the investment community. A number of advocacy groups, both domestically and internationally, have campaigned for governmental
and  private  action  to  promote  change  at  public  companies  related  to  ESG  matters,  including  through  the  investment  and  voting  practices  of  investment
advisers, public pension funds, universities and other members of the investing community. These activities include increasing attention and demands for
action  related  to  climate  change  and  energy  transition  matters,  such  as  promoting  the  use  of  substitutes  to  fossil  fuel  products  and  encouraging  the
divestment  of  fossil  fuel  equities,  as  well  as  pressuring  lenders  and  other  financial  services  companies  to  limit  or  curtail  activities  with  fossil  fuel
companies.

Members  of  the  investment  community  have  begun  to  screen  companies  for  sustainability  performance,  including  practices  related  to  climate
change. In addition, organizations that provide information to investors on corporate governance and related matters have developed ratings systems for
evaluating  companies  on  their  approach  to  ESG  matters.  These  ratings  are  used  by  some  investors  to  inform  their  investment  and  voting  decisions.
Unfavorable  ESG  ratings  may  lead  to  increased  negative  investor  sentiment  toward  us  and  our  industry  and  to  the  diversion  of  investment  to  other
industries, which could have a negative impact on our stock price and our access to and costs of capital.

Regulatory  requirements  related  to  ESG  or  sustainability  reporting  have  been  issued  in  the  European  Union  that  apply  to  financial  market
participants.  In  the  United  States,  such  regulations  have  been  issued  related  to  pension  investments  in  California,  and  for  the  responsible  investment  of
public funds in Illinois. Additional regulation is pending in other states. We expect regulatory requirements related to ESG matters to continue to expand
globally. If we are not able to meet future sustainability reporting requirements of regulators or current and future expectations of investors, customers or
other stakeholders, our business and ability to raise capital may be adversely affected.

Increasing attention to climate change, increasing societal expectations on companies to address climate change, and potential consumer use of
substitutes to energy commodities may result in increased costs, reduced demand for our customers’ hydrocarbon products which will likely translate to
reduced demand for compression services, reduced profits, increased investigations and litigation, increased governmental regulations and negative impacts
on our stock price and access to capital markets.

12

International,  national  and  state  governments  and  agencies  continue  to  evaluate  and  promulgate  legislation  and  regulations  that  are  focused  on
restricting greenhouse gas (GHG) emissions. Compliance with climate action regulations applicable to our customers' operations may have significant
implications that could adversely affect our business and operating results in the fossil fuel sectors, and boosting demand for technologies contributing
to the climate action agenda.

In the United States, the U.S. Environmental Protection Agency (EPA) has taken steps to regulate GHG emissions as air pollutants under the U.S.
Clean Air Act of 1970, as amended. The EPA's Greenhouse Gas Reporting Rule requires monitoring and reporting of GHG emissions from, among others,
certain mobile and stationary GHG emission sources in the oil and natural gas industry. In addition, the U.S. government has proposed rules in the past
setting  GHG  emissions  standards  for,  or  otherwise  aimed  at  reducing  GHG  emissions  from,  the  oil  and  natural  gas  industry.  Caps  or  fees  on  carbon
emissions, including in the U.S., have been and may continue to be established and the cost of such caps or fees could disproportionately affect the fossil
fuel sectors. We are unable to predict whether and when the proposed changes in laws or regulations ultimately will occur or what they ultimately will
require, and accordingly, we are unable to assess the potential financial or operational impact they may have on our business. Other developments focused
on  restricting  GHG  emissions  include  the  Regional  Greenhouse  Gas  Initiative,  the  Western  Climate  Action  initiative,  and  various  state  programs
implementing the California Global Warming Solutions Act of 2006 (known as Assembly Bill 32).

Requirements and voluntary initiatives to reduce greenhouse gas emissions, as well as increased climate change awareness, may result in increased
costs for the oil and gas industry to curb greenhouse gas emissions and could have an adverse impact on demand for oil and natural gas.

International, national, and state governments, agencies and bodies continue to evaluate and promulgate regulations and voluntary initiatives that
are focused on restricting GHG emissions. These requirements and initiatives are likely to become more stringent over time and to result in increased costs
for  the  oil  and  gas  industry  to  curb  GHG  emissions.  In  addition,  these  developments,  and  public  perception  relating  to  climate  change,  may  curtail
production and demand for hydrocarbons such as oil and natural gas by shifting demand towards and investment in relatively lower carbon energy sources
such  as  wind,  solar  and  alternative  energy  solutions.  If  renewable  energy  becomes  more  competitive  than  fossil-fuel  energy  globally,  it  could  have  a
material effect on our results of operations.

The potential for climate related changes may pose future risks to our operations and those of our customers.

These  changes  can  include  extreme  variability  in  weather  patterns  such  as  increased  frequency  and  severity  of  significant  weather  events  (e.g.
flooding, hurricanes and tropical storms), natural hazards (e.g., increased wildfire risk), rising mean temperature and sea levels, and long-term changes in
precipitation  patterns  (e.g.  drought,  desertification,  or  poor  water  quality).  Such  changes  have  the  potential  to  affect  business  continuity  and  operating
results, particularly at facilities in coastal areas or areas prone to chronic water scarcity.

Risks Associated With Our Company

A significant majority of our compressor rentals are for terms of six months or less which, if terminated or not renewed, would adversely impact our
revenue and our ability to recover our initial equipment costs.

The length of our compressor rental agreements with our customers varies based on customer needs, equipment configurations and geographic
area.  In most cases, under currently prevailing rental rates, the initial rental periods are not long enough to enable us to fully recoup the average cost of
acquiring or fabricating the equipment.  Of the 1,221 compressors rented at December 31, 2022, 841 were rented on a month-to-month basis. Given the
volatility of the oil and gas market, we cannot be sure that a substantial number of our customers will continue to renew their rental agreements or that we
will be able to re-rent the equipment to new customers or that any renewals or re-rentals will be at comparable rental rates.  The inability to timely renew or
re-rent  a  substantial  portion  of  our  compressor  rental  fleet  has  and  will  have  a  material  adverse  effect  upon  our  business,  financial  condition,  results  of
operations and cash flows.

We could be subject to substantial liability claims that could harm our financial condition.

Our products are used in production applications where an accident or a failure of a product can cause personal injury, loss of life, damage to
property,  equipment  or  the  environment,  or  suspension  of  operations.  While  we  maintain  insurance  coverage,  we  face  the  following  risks  under  our
insurance coverage:

• we may not be able to continue to obtain insurance on commercially reasonable terms;

13

• we may be faced with types of liabilities that will not be covered by our insurance, such as damages from significant product liabilities and from

environmental contamination;

•

the dollar amount of any liabilities may exceed our policy limits; and

• we do not maintain coverage against the risk of interruption of our business.

Any claims made under our policies will likely cause our premiums to increase.  Any future damages caused by our products or services that are
not  covered  by  insurance,  are  in  excess  of  policy  limits  or  are  subject  to  substantial  deductibles,  would  reduce  our  earnings  and  our  cash  available  for
operations.

A significant amount of our revenues and accounts receivable are related to one customer and a loss of this customer or other current customers could
adversely affect our results of operations.

Our business is dependent not only on securing new customers but also on maintaining current customers. We had one customer that accounted for
an  aggregate  of  approximately  42%  of  our  revenue  for  the  year  ended  December  31,  2022,  and  the  same  customer  accounted  for  an  aggregate  of
approximately 40% of our revenue for the year ended December 31, 2021. At December 31, 2022, this same customer accounted for an aggregate of 55%
of  our  accounts  receivable.  Unless  we  are  able  to  retain  our  existing  customers,  or  secure  new  customers  if  we  lose  one  or  more  of  our  significant
customers, our revenue and results of operations would be adversely affected. In addition, the default on payments by our significant customer or other
important customers would negatively impact our cash flow and current assets.

Loss of key members of our management could adversely affect our business.

In  keeping  with  our  streamlined  approach  to  our  business,  our  executive  management  team  consists  of  three  officers:  our  (i)  Chief  Executive
Officer, (ii) Chief Financial Officer and (iii) Vice President of Technical Services. Stephen C. Taylor, our Interim President and Chief Executive Officer
who has been our President, Chief Executive Officer and Board member since 2004, has announced his intention to retire as an officer from the Company
effective June 30, 2023. We currently have an Interim Chief Financial Officer after the resignation of our prior Chief Financial Officer on February 28,
2023. If either of these positions are not adequately or timely replaced, our business operations could be materially adversely affected. We do not carry any
key-man insurance on any of our officers or directors.

The erosion of the financial condition of our customers could adversely affect our business.

Many  of  our  customers  finance  their  exploration  and  development  activities  through  cash  flow  from  operations,  the  incurrence  of  debt  or  the
issuance of equity. During times when the oil or natural gas markets are weak, our customers are more likely to experience a downturn in their financial
condition. Many of our customers’ equity values and liquidity substantially declined during the most recent fall in oil and natural gas prices, and in some
cases access to capital markets may be an unreliable source of financing for some customers. The combination of a reduction in cash flow resulting from
declines  in  commodity  prices,  an  increase  in  the  interest  rates  charged  for  debt  incurrence,  a  reduction  in  borrowing  bases  under  reserve-based  credit
facilities and the lack of availability of debt or equity financing may result in a reduction in our customers’ spending for our products and services in 2023.
For example, our customers could seek to preserve capital by canceling month-to-month contracts, canceling or delaying scheduled maintenance of their
existing  natural  gas  compression  equipment  or  determining  not  to  enter  into  any  new  natural  gas  compression  service  contracts  or  purchase  new
compression equipment.

We might be unable to employ qualified technical personnel, which could hamper our present operations or increase our costs.

Many of the compressors that we sell or rent are mechanically complex and often must perform in harsh conditions. We believe that our success
depends upon our ability to employ and retain a sufficient number of technical personnel who have the ability to design, utilize, enhance and maintain these
compressors. Our ability to maintain and expand our operations depends in part on our ability to utilize and increase our skilled labor force. The demand
for skilled workers is high, and supply is limited. A significant increase in the wages paid by competing employers could result in a reduction of our skilled
labor force or cause an increase in the wage rates that we must pay or both.  If either of these events were to occur, our cost structure could increase and our
operations and growth potential could be impaired.

14

 
We may require a substantial amount of capital to expand our compressor rental fleet and grow our business.

During  2023,  the  amount  we  will  spend  on  capital  expenditures  related  to  rental  compression  equipment  will  be  determined  primarily  by  the
activity of our customers, our financial resources and access to capital. The amount and timing of any capital expenditures may vary depending on a variety
of factors, including the level of activity in the oil and natural gas exploration and production industry and the presence of alternative uses for our capital,
including any acquisitions that we may pursue.

During the past year, we funded our capital expenditures through cash flows from operations and borrowings from our revolving credit facility.
Although we believe that cash on hand, cash flows from our operations and bank borrowing from revolving credit facility will provide us with sufficient
cash to fund our planned capital expenditures for 2023, we cannot assure you that these sources will be sufficient. We may require additional capital to fund
any  significant  unanticipated  capital  expenditures,  such  as  a  material  acquisition.  To  the  extent  we  would  require  any  necessary  capital,  it  may  not  be
available to us when we need it or on acceptable terms. Our ability to raise additional capital will depend on the results of our operations and the status of
various capital and industry markets at the time we seek such capital.  Failure to generate sufficient cash flow, together with the absence of alternative
sources of capital, could have a material adverse effect on our business, financial condition, results of operations or cash flow.

Our debt levels may negatively impact our current and future financial stability.

In February 2023, we significantly increased the borrowing commitment of our revolving credit facility from $50 million to $175 million (subject
to  borrowing  base  limitation  and  customary  covenants)  and  at  December  31,  2022  we  had  $25  million  outstanding  on  the  revolving  credit  facility  and
anticipate  additional  significant  borrowing  on  the  facility  through  2023.  Should  we  utilize  our  full  debt  capacity  growth  beyond  that  point  could  be
impacted. As a result of our indebtedness at any given point in time, we might not have the ability to incur any substantial additional indebtedness. The
level of our indebtedness could have several important effects on our future operations, including:

•

•

•

our ability to obtain additional financing for working capital, acquisitions, capital expenditures and other purposes may be limited;

a  significant  portion  of  our  cash  flow  from  operations  may  be  dedicated  to  the  payment  of  principal  and  interest  (which  is  variable  on  our
revolving credit facility) on our debt, thereby reducing funds available for other purposes; and

our leverage if increased to an unacceptable level, could make us more vulnerable to economic downturns.

If we borrow under our credit line and are unable to service our debt, we will likely be forced to take remedial steps that are contrary to our business
plan.

If  we  were  to  materially  borrow  under  our  line  of  credit  or  other  borrowing  arrangements,  it  is  possible  that  our  business  will  not  generate
sufficient cash flow from operations to meet any debt service requirements and the payment of principal when due depending on the amount of borrowings
at any given time. If this were to occur, we may be forced to:

•

•

•

sell assets at disadvantageous prices;

obtain additional financing; or

refinance all or a portion of our indebtedness on terms that may be less favorable to us.

Our current credit agreement contains covenants that limit our operating and financial flexibility and, if breached, could expose us to severe remedial
provisions.

Under the terms of our current credit agreement, we must:

comply with various leverage, commitment coverage and other customary ratios;

not exceed specified levels of debt

comply with limits on asset sales;

comply with limits on cash dividends;

and other customary limitations.

•

•

•

•

•

15

Our ability to meet the financial ratios and tests under our credit agreement can be affected by events beyond our control, and we may not be able
to satisfy those ratios and tests. A breach of any one of these covenants or requirements could permit the lending organization to accelerate outstanding
amounts so that it is immediately due and payable. If a breach occurs, no further borrowings would be available under our credit arrangement.  If we are
unable to repay any outstanding amounts, the lending organization could proceed against and foreclose on the assets we pledged as collateral to secure
payment of our indebtedness.

If we fail to acquire or successfully integrate additional businesses, our growth may be limited and our results of operations may suffer.

As part of our business strategy, we evaluate potential acquisitions of other businesses or assets. However, there can be no assurance that we will
be  successful  in  consummating  any  such  acquisitions.  Successful  acquisition  of  businesses  or  assets  will  depend  on  various  factors,  including,  but  not
limited to, our ability to obtain financing and the competitive environment for acquisitions. In addition, we may not be able to successfully integrate any
businesses or assets that we acquire in the future. The integration of acquired businesses is likely to be complex and time consuming and place a significant
strain  on  management  and  may  disrupt  our  business. We  also  may  be  adversely  impacted  by  any  unknown  liabilities  of  acquired  businesses,  including
environmental  liabilities.  We  may  encounter  substantial  difficulties,  costs  and  delays  involved  in  integrating  common  accounting,  information  and
communication systems, operating procedures, internal controls and human resources practices, including incompatibility of business cultures and the loss
of  key  employees  and  customers.  These  difficulties  may  reduce  our  ability  to  gain  customers  or  retain  existing  customers,  and  may  increase  operating
expenses, resulting in reduced revenues and income and a failure to realize the anticipated benefits of acquisitions.

Failure to effectively manage our business and growth could adversely affect our operating results and our internal controls.

Our strategy envisions the expansion and growth of our business, subject to the demand for oil and gas and the impact of the other risks set forth in
this risk factor section and elsewhere in this Report. Growth may place a strain on our management systems and resources. We must continue to refine and
expand our business capabilities, our systems and processes, and our access to financing sources. If we expand, we must continue to hire, train, supervise
and manage new employees. We cannot assure that we will be able to:

• meet our capital needs;

•

•

•

upgrade and expand our office and manufacturing infrastructure so that it is appropriate for our level of activity;

expand  our  systems  effectively  or  efficiently  or  in  a  timely  manner,  including  financial  and  management  controls,  reporting  systems  and
procedures; and

attract, hire, train and retain additional highly skilled and motivated officers and employees and allocate our human resources optimally.

If we are unable to manage our growth, our financial conditions and results of operations may be adversely affected.

Liability to customers under warranties and indemnification provisions may materially and adversely affect our results of operations.

We provide warranties as to the proper operation and conformance to specifications of the equipment we manufacture. Our equipment is complex
and  often  deployed  in  harsh  environments.  Failure  of  this  equipment  to  operate  properly  or  to  meet  specifications  may  increase  our  costs  by  requiring
additional engineering resources and services, replacement of parts and equipment or monetary reimbursement to a customer. We have in the past received
warranty  claims  and  we  expect  to  continue  to  receive  them  in  the  future.  To  the  extent  that  we  incur  substantial  warranty  claims  in  any  period,  our
reputation, our ability to obtain future business and our results of operations could be materially and adversely affected.

Our rental and sales contracts provide for varying forms of indemnification from our customers and in most cases may require us to indemnify our
customers. Under some of our rental and sales contracts, liability with respect to personnel and property is customarily assigned on a “knock-for-knock”
basis, which means that we and our customers assume liability for our respective personnel and property. However, in certain rental and sales contracts we
assume  liability  for  damage  to  our  customer’s  property  and  other  third-party  on  the  site  resulting  from  our  negligence.  Since  our  products  are  used  in
production applications in the energy industry, expenses and liabilities in connection with accidents involving our products and services could be extensive
and may exceed our insurance coverages.

16

 
Our income taxes may change.

We are subject to income tax on a jurisdictional or legal entity basis and significant judgment is required in certain instances to allocate our taxable
income to a jurisdiction and to determine the related income tax expense and benefits. Losses in one jurisdiction generally may not be used to offset profits
in other jurisdictions. As a result, changes in the mix of our earnings (or losses) between jurisdictions, among other factors, could alter our overall effective
income tax rate, possibly resulting in significant tax rate increases.

We are regularly audited by various tax authorities. Income tax audit assessments or changes in tax laws, regulations, or other interpretations may
result in increased tax provisions which could materially affect our operating results in the period or periods in which such determinations are made or
changes occur.

Failure to maintain effective internal controls could have a material adverse effect on our operations.

Section  404  of  the  Sarbanes-Oxley  Act  requires  annual  management  assessments  of  the  effectiveness  of  our  internal  control  over  financial
reporting. If we fail to maintain effective internal controls, we may not be able to ensure that we can conclude on an ongoing basis that we have effective
internal controls over financial reporting in accordance with Section 404 of the Sarbanes-Oxley Act. Moreover, effective internal controls are necessary for
us to produce reliable financial reports and to help prevent financial fraud. If, as a result of deficiencies in our internal controls, we cannot provide reliable
financial reports or prevent fraud, our business decision process may be adversely affected, our business and operating results could be harmed, investors
could lose confidence in our reported financial information, and the price of our stock could decrease as a result.

We are exposed to risks related to computer systems failures or cyber security threats

In the conduct of our business we are dependent upon our computing systems and those of third parties to collect, store, transmit and process data
used in our operational activities and to record, process and track financial transactions. If interruptions were to occur we would be unable to access these
systems for a period of time and there is a risk of data loss. Data backup and storage measures are in place that would allow recovery in a time frame that
we believe would not materially impact our ability to conduct business.

We are also subject to cyber security attacks and have taken steps to minimize the probability of an attack penetrating our systems. These include

network security, virus protection, filtering software and intrusion protection measures.

Risks Associated With Our Common Stock

The price of our common stock may fluctuate.

The trading price of our common stock and the price at which we may sell securities in the future are subject to substantial fluctuations in response
to  various  factors,  including  our  ability  to  successfully  accomplish  our  business  strategy,  the  trading  volume  of  our  stock,  changes  in  governmental
regulations, actual or anticipated variations in our quarterly or annual financial results, our involvement in litigation, general market conditions, the prices
of oil and natural gas, announcements by us and our competitors, our liquidity, our ability to raise additional funds, and other events such as those discussed
in the factors above.

Future sales of our common stock could adversely affect our stock price.

Substantial sales of our common stock in the public market, or the perception by the market that those sales could occur, may lower our stock
price or make it difficult for us to raise additional equity capital in the future. According to filings made with the Securities and Exchange Commission in
February  2022,  an  aggregate  of  approximately  38.1%  of  the  outstanding  shares  of  our  common  stock  are  owned  by  five  institutional  investors,  each  of
which owns more than 5% of our outstanding shares as of the date of their respective filings in February 2022. Potential sales of large amounts of these
shares in a short period of time by one or more of these significant investors could have a negative impact on our stock price. In addition, potential sales of
our common stock by our directors and officers, who beneficially own approximately 6.9% of the outstanding shares of our common stock as of March 28,
2023, and because of the negative perception of sales by insiders, could also have a negative impact on our stock price.

17

 
 
     
We have a comparatively low number of shares of common stock outstanding and, therefore, our common stock may suffer from limited liquidity and
its prices will likely be volatile and its value may be adversely affected.

Because  of  our  relatively  low  number  of  outstanding  shares  of  common  stock,  the  trading  price  of  our  common  stock  will  likely  be  subject  to
significant price fluctuations and limited liquidity. This may adversely affect the value of your investment. In addition, our common stock price is subject to
fluctuations  in  response  to  variations  in  quarterly  operating  results,  changes  in  management,  future  announcements  concerning  us,  general  trends  in  the
industry and other events or factors such as those described above.

If we issue debt or equity securities, you may lose certain rights and be diluted.

If we raise funds in the future through the issuance of debt or equity securities, the securities issued may have rights and preferences and privileges
senior to those of holders of our common stock, and the terms of the securities may impose restrictions on our operations or dilute your ownership in our
Company.

We currently have on file with the SEC an effective "universal" shelf registration statement on Form S-3, which enables us to sell, from time to
time, our common stock and other securities covered by the registration statement in one or more public offerings. The shelf registration statement allows
us to enter the public markets and consummate sales of the registered securities in rapid fashion and with little or no notice. Issuances of securities under
our shelf registration statement may dilute our existing shareholders.

If securities analysts downgrade our stock or cease coverage of us, the price of our stock could decline.

The  trading  market  for  our  common  stock  relies  in  part  on  the  research  and  reports  that  industry  or  financial  analysts  publish  about  us  or  our
business.  We  do  not  control  these  analysts.  Furthermore,  there  are  many  large,  well-established,  publicly  traded  companies  active  in  our  industry  and
market, which may mean that it is less likely that we will receive widespread analyst coverage.  If one or more of the analysts who do cover us downgrade
our stock, our stock price would likely decline rapidly.  If one or more of these analysts cease coverage of our company, we could lose visibility in the
market, which in turn could cause our stock price to decline.

Provisions contained in our governing documents could hinder a change in control of us.

Our articles of incorporation and bylaws contain provisions that may discourage acquisition bids and may limit the price investors are willing to

pay for our common stock.  Our articles of incorporation and bylaws provide that:

•

•

•

•

•

directors are elected for three-year terms, with approximately one-third of the board of directors standing for election each year;

cumulative voting is not allowed, which limits the ability of minority shareholders to elect any directors;

advance notice for nominations of directors by shareholders and for shareholders to include matters to be considered at our annual meeting;

the unanimous vote of the board of directors or the affirmative vote of the holders of not less than 80% of the votes entitled to be cast by the
holders of all shares entitled to vote in the election of directors is required to change the size of the board of directors; and

directors may be removed only for cause or by the holders of not less than 80% of the votes entitled to be cast on the matter.

Our  Board  of  Directors  has  the  authority  to  issue  up  to  five  million  shares  of  preferred  stock.  The  Board  of  Directors  can  fix  the  terms  of  the
preferred  stock  without  any  action  on  the  part  of  our  shareholders.  The  issuance  of  shares  of  preferred  stock  may  delay  or  prevent  a  change  in  control
transaction. In addition, preferred stock could be used in connection with the Board of Directors’ adoption of a shareholders’ rights plan (also known as a
poison pill), which would make it much more difficult to effect a change in control of our Company through acquiring or controlling blocks of stock. Also,
our directors and officers as a group will continue to beneficially own stock and although this is not a majority of our stock, it confers substantial voting
power  in  the  election  of  directors  and  management  of  our  Company. This  would  make  it  difficult  for  other  minority  shareholders  to  effect  a  change  in
control or otherwise extend any significant control over our management. This may adversely affect the market price and interfere with the voting and other
rights of our common stock.

18

ITEM 1B.    UNRESOLVED STAFF COMMENTS

None.

ITEM 2.    PROPERTIES

The table below describes the material facilities owned or leased by Natural Gas Services Group as of December 31, 2022:

Location

Status

Square Feet

Uses

Tulsa, Oklahoma
Midland, Texas
Lewiston, Michigan
Midland, Texas
Bloomfield, New Mexico
Godley, Texas
Bridgeport, Texas
Midland, Texas
Vernal, Utah
Carrollton, Ohio
Wheeler, Texas

Owned and Leased
Owned
Owned
Owned
Owned
Leased
Leased
Owned
Leased
Leased
Leased

91,780  Compressor fabrication, rental and services
70,000  Compressor fabrication, rental and services
15,360  Compressor fabrication, rental and services
45,000  Corporate office

7,000  Office and parts and services
5,000  Parts and services
4,500  Office and parts and services
4,100  Parts and services
3,200  Parts and services
2,600  Parts and services
2,160  Parts and services

We believe that our properties are generally well maintained and in good condition and adequate for our purposes.

ITEM 3.    LEGAL PROCEEDINGS

From time to time, we are a party to various legal proceedings in the ordinary course of our business.  While management is unable to predict the
ultimate outcome of these actions, it believes that any ultimate liability arising from these actions will not have a material effect on our financial position,
results of operations or cash flow. We are not currently a party to any bankruptcy, receivership, reorganization, adjustment or similar proceeding, and we
are not aware of any material threatened litigation.

ITEM 4.    MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND

ISSUER PURCHASES OF EQUITY SECURITIES

PART II

Our common stock currently trades on the New York Stock Exchange under the symbol “NGS”. As of December 31, 2022 as reflected by our
transfer agent records, we had 13 record holders of our common stock.  This number does not include any beneficial owners for whom shares of common
stock may be held in “nominee” or “street” name. On March 28, 2023, the last reported sale price of our common stock as reported by the New York Stock
Exchange was $10.12 per share.

19

 
 
 
 
 
 
 
Dividends

To date, we have not declared or paid any dividends on our common stock. We currently do not anticipate paying a cash dividend on our common
stock.  Although we intend to retain our earnings, if any, to finance the growth of our business, our Board of Directors will have the discretion to declare
and pay dividends in the future. Payment of dividends in the future will depend upon our earnings, capital requirements, and other factors, which our Board
of Directors may deem relevant.  Our credit agreement also contains restrictions on our paying dividends under certain circumstances.

Equity Compensation Plans

The following table summarizes certain information regarding our equity compensation plans as of December 31, 2022:

Equity compensation plans approved by security holders:

Plan Category

Stock Option Plan
2019 Equity Incentive Plan

Total

(a)
Number of securities to
vest or be issued upon
exercise of outstanding
options

(b)
Weighted-average
issuance or exercise
price of
outstanding options

(c)
Number of securities
remaining available for
future issuance under
equity compensation
plans
(excluding securities
reflected in column
(a))

(1)

201,584 
250,847 
452,431 

$
$

19.32 
9.14 

344,253 
570,473 
914,726 

(1)

    Total number of shares to be issued upon exercise of options granted to employees, officers, and directors under our 1998 Stock Option Plan.

Sale of Unregistered Securities

We made no sales of unregistered securities during the year ended December 31, 2022.

20

 
 
 
 
 
 
 
 
 
 
ITEM 6.     RESERVED

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

The following discussion is intended to assist you in understanding our financial position and results of operations for each of the years ended
December 31, 2022 and 2021. You should read the following discussion and analysis in conjunction with our audited financial statements and the related
notes.

The  following  discussion  contains  forward-looking  statements.  For  a  description  of  limitations  inherent  in  forward-looking  statements,  see

“Special Note Regarding Forward-Looking Statements” on page ii.

Overview

We  fabricate,  manufacture,  rent  and  sell  natural  gas  compressors  and  related  equipment.  Our  primary  focus  is  on  the  rental  of  natural  gas
compressors. Our rental contracts generally provide for initial terms of six to 60 months, with our larger horsepower units having longer initial terms. After
the initial term of our rental contracts, most of our customers have continued to rent our compressors on a month-to-month basis. Rental amounts are billed
monthly in advance and include maintenance of the rented compressors. As of December 31, 2022, we had 1,221 natural gas compressors totaling 318,350
horsepower  rented  to  81  customers,  compared  to  1,254  natural  gas  compressors  totaling  297,808  horsepower  rented  to  83  customers  at  December  31,
2021. Of the 1,221 compressors rented at December 31, 2022, 841 were rented on a month-to-month basis.

We  also  fabricate  natural  gas  compressors  for  sale  to  our  customers,  designing  compressors  to  meet  unique  specifications  dictated  by  well
pressures,  production  characteristics  and  particular  applications  for  which  compression  is  sought.  Fabrication  of  compressors  involves  our  purchase  of
engines, compressors, coolers and other components, and our assembling of these components on skids for delivery to customer locations. These major
components of our compressors are acquired through periodic purchase orders placed with third-party suppliers on an “as needed” basis, which presently
requires a minimum three to six month lead time with delivery dates scheduled to coincide with our estimated production schedules. Although we do not
have formal continuing supply contracts with any major supplier, we believe we have adequate alternative sources available. Finally due to supply chain
disruptions as a result of the COVID-19 pandemic and the Russian invasion of the Ukraine and the increased rate of inflation, we continue to experience
cost increases and sporadic unavailability of many of our parts needed to fabricate and maintain our rental fleet. While we have a robust supplier network,
pricing pressure from our customers and competitors presents challenges in increasing our rental rates to offset these increased costs which could have a
material adverse effect on the results of our operations and financial condition, particularly if we were unable to increase our rental rates and sales prices
proportionate to any such component price increases.

We also manufacture a line of compressor frames, cylinders and parts, known as our CiP (Cylinder-in-Plane) product line. We use finished CiP
component  products  in  the  fabrication  of  compressor  units  for  sale  or  rental  by  us  or  sell  the  finished  component  products  to  other  compressor
fabricators. We also design, fabricate, sell, install and service flare stacks and related ignition and control devices for onshore and offshore incineration of
gas compounds such as hydrogen sulfide, carbon dioxide, natural gas and liquefied petroleum gases. To provide customer support for our compressor and
flare  sales  businesses,  we  stock  varying  levels  of  replacement  parts  at  our  Midland,  Texas  facility  and  at  field  service  locations.  We  also  provide  an
exchange and rebuild program for screw compressors and maintain an inventory of new and used compressors to facilitate this business.

We provide service and maintenance to our non-rental customers under written maintenance contracts or on an as-required basis in the absence of

a service contract. Maintenance agreements typically have terms of six months to one year and require payment of a monthly fee.

21

The following table sets forth our revenues from each of our three operating categories for the periods presented:

Rental
Sales
Service and maintenance

Total

Year Ended December 31,
2021
2022

(in thousands)

$

$

74,465  $
8,568 
1,792 
84,825  $

63,624 
6,882 
1,914 
72,420 

Our strategy for growth is focused on our compressor rental business. Margins, exclusive of depreciation and amortization, for our rental business
historically run in the mid-40% to low-60% range, while margins for the compressor sales business tend to be in the mid-20% range. If our rental business
grows and contributes a larger percentage of our total revenues, we expect our overall company-wide margins, exclusive of depreciation and amortization,
to improve over time.

The  oil  and  natural  gas  equipment  rental  and  services  industry  is  cyclical  in  nature.  The  most  critical  factor  in  assessing  the  outlook  for  the
industry is the worldwide supply and demand for oil and natural gas and the corresponding changes in commodity prices. As demand and prices increase,
oil and natural gas producers typically increase their capital expenditures for drilling, development and production activities, although recent equity capital
constraints and demands from institutional investors to keep spending within operating cash flow have meaningfully restrained capital expenditure budgets
of domestic exploration and production companies. Generally, increased capital expenditures ultimately result in greater revenues and profits for service
and equipment companies.

In general, we expect our overall business activity and revenues to track the level of activity in the oil and natural gas industry, with changes in
crude oil and condensate production and consumption levels and prices affecting our business more than changes in domestic natural gas production and
consumption levels and prices. In recent years we have increased our rental and sales in unconventional oil shale plays, which are more dependent on crude
oil prices. With this shift towards oil production the demand for overall compression services and products is driven by two general factors; an increased
focus  by  producers  on  artificial  lift  applications,  e.g.,  production  enhancement  with  compression  assisted  gas  lift;  and  declining  reservoir  pressure  in
maturing natural gas producing fields, especially non-conventional production. These types of applications have historically been serviced by wellhead size
compressors, and continue to be, but there has also been an economic move by our customers towards centralized drilling and production facilities, which
have  increased  the  market  need  for  larger  horsepower  compressor  packages.  We  recognized  this  need  in  recent  years  and  have  shifted  our  cash  and
fabrication resources towards designing, fabricating and renting gas compressor packages that range from 400 horsepower up to 2,500 horsepower. While
this is a response to market conditions and trends, it also provides us with the opportunity to compete as a full-line compression provider.

We typically experience a decline in demand during periods of low crude oil and natural gas prices. During 2019, we witnessed a moderation of
crude oil prices as well as drilling and completion activity levels. During the first quarter of 2020, we saw a substantial decline in the prices for oil and
natural gas. While prices largely recovered in 2021 and the stabilized in 2022, activity levels of exploration and production companies have been and will
continue  to  be  dependent  not  only  on  commodity  prices,  but  also  on  their  ability  to  generate  sufficient  operational  cash  flow  to  fund  their  activities.
Generally, though, we feel that production activities (in which we are involved) will fare better than drilling activity.

For  fiscal  year  2023,  our  forecasted  capital  expenditures  will  be  directly  dependent  upon  our  customers’  compression  requirements  and  are
anticipated to exceed our internally generated cash flows by a significant amount. As such, we are likely to incur debt at levels that far exceed our historical
activity. Any required capital will be for additions to our compressor rental fleet and/or addition or replacement of service vehicles. We believe that cash on
hand,  cash  flows  from  operations  and  borrowings  under  our  revolving  credit  facility  will  be  sufficient  to  satisfy  our  capital  and  liquidity  requirements
through 2023. If we require additional capital to fund any significant unanticipated expenditures, including any material acquisitions of other businesses,
joint ventures or other opportunities, this additional capital could exceed our current resources, might not be available to us when we need it, or might not
be on acceptable terms.

Critical Accounting Policies and Practices

We  have  identified  the  policies  below  as  critical  to  our  business  operations  and  the  understanding  of  our  results  of  operations.  In  the  ordinary

course of business, we have made a number of estimates and assumptions relating to the reporting of

22

 
 
 
 
results of operations and financial condition in the preparation of our financial statements in conformity with accounting principles generally accepted in
the United States. Actual results could differ significantly from those estimates under different assumptions and conditions. We believe that the following
discussion addresses our most critical accounting policies, which are those that are most important to the portrayal of our financial condition and results of
operations and require our most difficult, subjective, and complex judgments, often as a result of the need to make estimates about the effect of matters that
are  inherently  uncertain.  We  describe  our  significant  accounting  policies  more  fully  in  Note  2  ("Summary  of  Significant  Accounting  Policies")  to  our
consolidated financial statements.

Our critical accounting policies are as follows:

•

•

•

•

•

revenue recognition;

estimating the allowance for doubtful accounts receivable;

accounting for income taxes;

accounting for long-lived assets; and

accounting for inventory.

Revenue Recognition Policy

The  Company  adopted  ASC  606,  Revenue  from  Contracts  with  Customers  ("ASC  606")  on  January  1,  2018.  Revenue  is  measured  based  on  a
consideration specified in a customer’s contract, excluding any sale incentives and taxes collected on behalf of third parties (i.e. sales and property taxes).
We recognize revenue once a performance obligation has been satisfied and control over a product or service has transferred to the customer. Shipping and
handling costs incurred are accounted for as fulfillment costs and are included in cost of revenues in our Consolidated Statements of Operations.

Nature of Goods and Services

Rental Revenue. The Company generates revenue from renting compressors and flare systems to our customers. These contracts may also include
a fee for servicing the compressor or flare during the rental contract. Our rental contracts typically range from six to 60 months, with our larger horsepower
compressors  having  longer  minimum  contract  terms.  Our  rental  revenue  is  recognized  over  time,  with  equal  monthly  payments  over  the  term  of  the
contract. After the terms of the contract have expired, a customer may renew their contract or continue renting on a monthly basis thereafter.

Sales  Revenue.  The  Company  generates  revenue  by  the  sale  of  custom/fabricated  compressors,  flare  systems  and  parts,  as  well  as,
exchange/rebuilding customer owned compressors and sale of used rental equipment. The Company designs and fabricates compressors and flares based on
the customer’s specifications outlined in their contract. Though the equipment being built is customized by the customer, control under these contracts does
not pass to the customer until the compressor or flare package is completed and shipped, or, in accordance with a bill and hold arrangements, the customer
accepts title and assumes the risk and rewards of ownership. We request some of our customers to make progressive payments as the product is being built;
these payments are recorded as a contract liability on the Deferred Income line on the consolidated balance sheet until control has been transferred. These
contracts also may include an assurance warranty clause to guarantee the product is free from defects in material and workmanship for a set duration of
time; this is a standard industry practice and is not considered a performance obligation.

Allowance for Doubtful Accounts Receivable

We perform ongoing credit evaluations of our customers and adjust credit limits based on management's assessment of the customer's financial
condition and payment history, as well as industry conditions and general economic conditions. We continuously monitor collections and payments from
our customers and maintain a provision for estimated credit losses based upon our historical experience and any specific customer collection issues that we
have identified. While such credit losses have historically been within our expectations and the provisions established, we cannot guarantee that we will
continue  to  experience  the  same  credit  loss  rates  that  we  have  in  the  past.  Management  believes  that  its  allowance  for  doubtful  accounts  is  adequate;
however, actual write-offs may exceed the recorded allowance.

Accounting for Income Taxes

As part of the process of preparing our financial statements, we are required to estimate our federal income taxes as well as income taxes in each
of  the  states  in  which  we  operate.    This  process  involves  us  estimating  our  actual  current  tax  exposure  together  with  assessing  temporary  differences
resulting from differing treatment of items for tax and accounting

23

purposes.  These  differences  result  in  deferred  tax  assets  and  liabilities,  which  are  included  in  our  consolidated  balance  sheet.  We  must  then  assess  the
likelihood that our deferred tax assets will be recovered from future taxable income and, to the extent we believe that recovery is not probable, we must
establish a valuation allowance. To the extent we establish a valuation allowance or increase this allowance in a period, we must include an expense in the
tax provision in the statement of income.

Significant  management  judgment  is  required  in  determining  our  provision  for  income  taxes,  our  deferred  tax  assets  and  liabilities  and  any
valuation allowance recorded against our net deferred tax assets. We currently have no valuation allowance and fully expect to utilize all of our deferred tax
assets.

ASC  740  also  prescribes  a  recognition  threshold  and  measurement  attribute  for  the  financial  statement  recognition  and  measurement  of  a  tax
position taken or expected to be taken in a tax return. In order to record any financial statement benefit, we are required to determine, based on technical
merits of the position, whether it is more likely than not (a likelihood of more than 50 percent) that a tax position will be sustained upon examination,
including resolution of any related appeals or litigation processes. If that step is satisfied, then we must measure the tax position to determine the amount of
benefit to recognize in the financial statements. The tax position is measured at the largest amount of the benefit that is greater than 50 percent likely of
being realized upon ultimate settlement. Our policy regarding income tax interest and penalties is to expense those items as other expense.
Long-Lived Assets

Rental Equipment, Property and Equipment (Including Retirement of Rental Equipment)

Rental  equipment  and  property  and  equipment  are  recorded  at  cost  less  accumulated  depreciation,  except  for  work-in-progress  on  new  rental
equipment which is recorded at cost until it’s complete and added to the fleet. Depreciation is computed using the straight-line method over the estimated
useful lives of the assets. Our rental equipment has an estimated useful life between 15 and 25 years, while our property and equipment has an estimate
useful lives which range from 3 to 39 years.  The majority of our property and equipment, including rental equipment, is a direct cost to generating revenue.

We  assess  the  impairment  of  rental  equipment  and  property  and  equipment  whenever  events  or  changes  in  circumstances  indicate  that  the  net
recorded amount may not be recoverable. The following factors could trigger an impairment review: significant underperformance relative to historical or
projected future cash flows; significant adverse changes in the extent or manner in which asset (or asset group) is being used or its condition, including a
meaningful drop in fleet utilization over the prior four quarters; significant negative industry or company-specific trends or actions, including meaningful
capital expenditure budget reductions by our major customers or other sizable exploration and production or midstream companies, as well as significant
declines  in  oil  and  natural  gas  prices;  legislative  changes  prohibiting  us  from  leasing  our  units  or  flares;  or  poor  general  economic  conditions.  An
impairment loss is recognized if the future undiscounted cash flows associated with the asset (or asset group) and the estimated fair value of the asset are
less than the asset's carrying value.

Inventories

We value our total inventory (current and long-term) at the lower of the actual cost and net realizable value of the inventory. We regularly review
inventory quantities on hand and record a provision for excess and obsolete inventory based primarily on current and anticipated customer demand and
production  requirements.  The  Company  accesses  anticipated  customer  demand  based  on  current  and  upcoming  capital  expenditure  budgets  of  its  major
customers as well as other significant companies in the industry, along with oil and natural gas price forecasts and other factors affecting the industry. For
the year ended December 31, 2022 and 2021, inventory allowance and write-off totaled $0.1 million.

Our Performance Trends and Outlook

On  January  30,  2020,  the  World  Health  Organization  (“WHO”)  announced  a  global  health  emergency  because  of  a  new  strain  of  coronavirus
known  as  COVID-19  due  to  the  risks  it  imposes  on  the  international  community  as  the  virus  spreads  globally.  In  March  2020,  the  WHO  classified  the
COVID-19 outbreak as a pandemic, based on the rapid increase in exposure globally. During this time, the market began to experience a decline in oil
prices  in  response  to  oil  demand  concerns  due  to  the  global  economic  impacts  of  COVID-19.  These  developments  led  to  significant  weaknesses  in  oil
prices  and  ensuing  reductions  of  exploration  and  production  company  capital  and  operating  budgets.  Oil  markets  largely  recovered  in  2021,  and  prices
continued to rise throughout 2022.

With  the  capital  restraint  by  E&P  companies,  we  expect  rental  demand  for  our  large  and  medium  horsepower  units  to  remain  strong  for  the

remainder of 2023. In terms of sales, we expect minimal compressor sales for the year due to shifts in

24

 
capital  expenditure  budget  concentrations  throughout  the  industry,  including  those  of  our  major  customers,  as  many  upstream  producers  prefer  to  rent
compression  as  opposed  to  purchasing  units  as  part  of  their  capital  budget  allocations.  Finally,  we  have  recently  experienced  and  expect  to  continue  to
experience supply chain disruptions. While we believe we have a strong vendor network that provides flexibility in sourcing needed materials, we have
incurred longer than normal wait times for certain components as well as increases in costs. Lastly, our relationship with our major customer continues to
be strong, and it has continued to pay our invoices in a timely, consistent manner. Nevertheless, if any of these circumstances change, our business could be
adversely affected.

Results of Operations

Year Ended December 31, 2022 Compared to the Year Ended December 31, 2021

The table below shows our revenues and percentage of total revenues for each of our product lines for the years ended December 31, 2022 and

2021.

Rental
Sales
Service & Maintenance
Total

Revenue
Year Ended December 31,

2022

2021

$

$

74,465 
8,568 
1,792 
84,825 

(dollars in thousands)

87.8 % $
10.1 %
2.1 %

$

63,624 
6,882 
1,914 
72,420 

87.9 %
9.5 %
2.6 %

Total revenue increased to $84.8 million from $72.4 million, or 17.1%, for the year ended December 31, 2022 compared to 2021. This increase
was mainly a result of increased rental revenue (17.0% increase) primarily due to a greater number of large horsepower units being rented as well as higher
sales revenue (24.5% increase) primarily due to increased compressor and parts sales.

Rental  revenue  increased  to  $74.5  million  (17.0%)  from  $63.6  million  for  the  year  ended  December  31,  2022  compared  to  2021.  As  of
December 31, 2022, we had 1,869 natural gas compressors in our rental fleet, down from 2,023 units at year end 2021. In addition, the Company's total unit
horsepower increased by 1.7% to 425,340 at December 31, 2022 compared to 418,041 horsepower year end 2021. However, as of December 31, 2022, we
had  1,221  natural  gas  compressors  totaling  318,350  horsepower  rented  to  81  customers,  compared  to  1,254  natural  gas  compressors  totaling  297,808
horsepower rented to 83 customers as of December 31, 2021. This increase in rented horsepower reflects the addition of 35 high horsepower compressors
with 26,320 horsepower to the Company's fleet during 2022. The rental fleet had a unit utilization as of December 31, 2022 and 2021 of 65.3% and 62.0%,
respectively, while our horsepower utilization for the same periods was 74.8% and 71.2%, respectively. The increase in both utilization metrics was mainly
the result of the addition and increased demand for our higher horsepower units. During the year ended December 31, 2022 we placed into service 174
newly set units during the year, 35 of which were 400 horsepower or larger.

Sales  revenue  increased  to  $8.6  million  from  $6.9  million  for  the  year  ended  December  31,  2022,  compared  to  2021.  This increase in largely
attributable  to  an  increase  in  compressor  and  parts  sales  during  2022.  Sales  are  subject  to  fluctuations  in  timing  of  industry  activity  related  to  capital
projects and, as such, can vary substantially between periods.

Company  management  routinely  reviews  its  inventory  for  obsolescence.  Due  to  the  slow  moving  nature  or  obsolescence  of  a  portion  of  the
Company's long-term inventory and inventory related to the retirement of certain rental equipment, management recorded an increase of $83,000 in the
inventory allowance reserve for costs that may not be recoverable in the future. We ended 2022 with an inventory allowance balance of $120,000.

Company management also routinely reviews its rental fleet to determine which units are no longer of the type, configuration, make or model that
our customers are demanding or that are not cost efficient to refurbish, maintain and/or operate. As a result of this review, we determined 124 units should
be retired from our rental fleet. Accordingly, we recorded a $0.2 million loss on retirement of rental equipment during the year ended December 31, 2022.

25

 
 
 
 
Operating income increased to $0.4 million for the year ended December 31, 2022 compared to an operating loss of $12.4 million for the year
ended December 31, 2021. The increase in operating income was mainly due to 1) a $12.4 million increase in revenues and 2) a $2.9 million decrease in
loss  related  to  the  retirement  of  124  units,  partially  offset  by  a  $2.9  million  increase  in  selling,  general  and  administrative  expenses  and  a  $1.1  million
increase in costs of rentals primarily related to inflationary pressures on parts and labor expenses.

Selling, general, and administrative expenses increased by $2.9 million to $13.6 million for the year ended December 31, 2022, as compared to
$10.8 million for 2021. This 26.8% increase was primarily the result of $2.5 million of severance expenses related to the planned retirement of Stephen C.
Taylor and other severance costs related to the resignation of John Chisholm, our interim Chief Executive Officer and director during a portion of 2022.
The remaining increase was related to increases in information technology expenses driven by our ongoing data automation program.

Depreciation and amortization expense decreased to $24.1 million from $25.4 million, or 5.0%, for the year ended December 31, 2022, compared
to 2021.  The decrease is the result of the retirement of 263 units from our rental fleet in the fourth quarter of 2021 which reduced our depreciable asset
base by $3.1 million. This decrease was partially offset by higher capital expenditures for larger horsepower units being added to the fleet. We added 45
units  (approximately  33,000  horsepower)  to  our  fleet  during  the  twelve-month  period  ended  December  31,  2022.  Thirty-five  of  those  units  were  400
horsepower or larger, representing approximately 80% of the horsepower added.

Income tax (expense)/benefit increased to $(0.5) million from $2.6 million for the year ended December 31, 2022 compared to 2021. Our effective
tax rate for both years differs from the U.S. federal statutory rate of 21%. On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act
("CARES Act") was enacted in response to the economic impact caused the COVID-19 pandemic. The CARES Act allows federal net operating losses
("NOL") incurred in 2018, 2019, and 2020 to be carried back to each of the five preceding taxable years to generate a refund of previously paid federal
income taxes. The Company generated significant NOLs during 2018 and 2019. The Company filed its NOL carryback claims for 2018 and 2019 during
2020. Accordingly, the Company initially recorded a federal income tax receivable of $15.0 million and an increase to its deferred income tax liability of
$10.1 million on its condensed consolidated balance sheet. During the third quarter of 2020, the Company received refunds totaling $3.9 million related to
its 2018 NOLs, which, along with year-end provision adjustments, reduced its federal income tax receivable to $11.5 million on its consolidated balance
sheet as of December 31, 2022. In addition, the Company recorded a current income tax benefit of $2.6 million on its consolidated statement of operations
for the year ended December 31, 2021. Our income tax expense in 2022 was largely due to certain executive severance compensation expenses incurred
during 2022 that are non-deductible for income tax purposes. As such, we recognized income tax expense of $0.5 million while incurring net loss before
income taxes less than $0.1 million for the year ended December 31, 2022.

Adjusted Gross Margin Year Ended December 31, 2022 Compared to the Year Ended December 31, 2021

The table below shows our adjusted gross margin and related percentages for each of our product lines for the years ended December 31, 2022 and

December 31, 2021.  Adjusted gross margin is the difference between revenue and cost of revenues, exclusive of depreciation and amortization expense.

Rental
Sales
Service & Maintenance
Total

Adjusted Gross Margin 
Year Ended December 31,

(1)

2022

2021

$

$

36,715 
918 
835 
38,468 

(dollars in thousands)

49.3 %
10.7 %
46.6 %
45.3 %

$

$

26,986 
(947)
1,016 
27,055 

42.4 %
(13.8)%
53.1 %

37.4 %

(1)

  For  a  reconciliation  of  adjusted  gross  margin  to  its  most  directly  comparable  financial  measure  calculated  and  presented  in  accordance  with  GAAP,

please read "Non-GAAP Financial Measures" below.

Our overall adjusted gross margin percentage increased to 45.3% for the year ended December 31, 2022 compared to 37.4% for the year ended
December 31, 2021. Our increase in gross margins is mainly due to an increase in rental revenues. Rental revenues increased 17.0% over 2021, while our
costs of rentals increased 3.0% driven by inflationary pressures primarily in labor and parts costs. Rental revenues comprised 88% of our total revenues for
the year ended December 31, 2022 compared to 88% of total revenues for the year ended December 31, 2021. Our sales margin improved to 10.7% in 2022
from

26

 
 
 
(13.8)% in 2021. Sales revenues increased 24.5% attributable to increased compressor sales, which realizes a higher gross margin than parts sales. While
many sales costs are variable, certain costs such as labor are less variable as a certain staff level is retained to meet demand when market forces shift. Third
party service and maintenance margins decreased to 46.6% from 53.1% for the year ended December 31, 2022 compared to 2021. Service and maintenance
only represents 2.1% of our revenue in 2022, providing minimal impact on our overall adjusted gross margin.

Non-GAAP Financial Measures

Our definition and use of Adjusted EBITDA

“Adjusted EBITDA” is a non-GAAP financial measure that we define as earnings (net income or (loss)) before interest, taxes, depreciation and
amortization, as well as an increase in inventory allowance and inventory write-offs, retirement of rental equipment, non-recurring severance expenses and
non-cash  equity  compensation  expenses. This  term,  as  used  and  defined  by  us,  may  not  be  comparable  to  similarly  titled  measures  employed  by  other
companies  and  is  not  a  measure  of  performance  calculated  in  accordance  with  GAAP. Adjusted  EBITDA  should  not  be  considered  in  isolation  or  as  a
substitute  for  operating  income,  net  income  or  loss,  cash  flows  provided  by  operating,  investing  and  financing  activities,  or  other  income  or  cash  flow
statement data prepared in accordance with GAAP.  However, management believes Adjusted EBITDA is useful to an investor in evaluating our operating
performance because:

•

•

•

it is widely used by investors in the energy industry to measure a company’s operating performance without regard to items excluded from the
calculation of Adjusted EBITDA, which can vary substantially from company to company depending upon accounting methods and book value of
assets, capital structure and the method by which assets were acquired, among other factors;

it helps investors to more meaningfully evaluate and compare the results of our operations from period to period by removing the impact of our
capital structure and asset base from our operating structure; and

it is used by our management for various purposes, including as a measure of operating performance, in presentations to our Board of Directors, as
a basis for strategic planning and forecasting, and as a component for setting incentive compensation.

Adjusted EBITDA has limitations as an analytical tool, and you should not consider it in isolation, or as a substitute for analysis of our results as

reported under generally accepted accounting principles.  Some of these limitations are:

• Adjusted EBITDA does not reflect our cash expenditures, future requirements for capital expenditures, or contractual commitments;

• Adjusted EBITDA does not reflect changes in, or cash requirements for, our working capital needs;

• Adjusted EBITDA does not reflect the cash requirements necessary to service interest or principal payments on our debts; and

•

although  depreciation  and  amortization  are  non-cash  charges,  the  assets  being  depreciated  and  amortized  will  often  have  to  be  replaced  in  the
future, and Adjusted EBITDA does not reflect any capital expenditures for such replacements.

There  are  other  material  limitations  to  using  Adjusted  EBITDA  as  a  measure  of  performance,  including  the  inability  to  analyze  the  impact  of
certain recurring items that materially affect our net income or loss, and the lack of comparability of results of operations of different companies.  Please
read the table below under “Reconciliation” to see how Adjusted EBITDA reconciles to our net income, the most directly comparable GAAP financial
measure.

27

Reconciliation

The following table reconciles our net loss, the most directly comparable GAAP financial measure, to Adjusted EBITDA:

Net loss

Interest expense
Income tax expense (benefit)
Depreciation and amortization
Inventory allowance
Retirement of rental equipment
Severance expenses
Stock compensation expense

Adjusted EBITDA

Our definition and use of Adjusted Gross Margin

Year Ended December 31,

2022

2021

(in thousands)
(569) $
364 
528 
24,116 
83 
196 
2,537 
1,910 
29,165  $

(9,183)
65 
(2,603)
25,397 
208 
3,096 
— 
1,738 
18,718 

$

$

We define “Adjusted Gross Margin” as total revenue less costs of revenues (excluding depreciation and amortization expense). Adjusted gross
margin is included as a supplemental disclosure because it is a primary measure used by our management as it represents the results of revenue and costs
(excluding depreciation and amortization expense), which are key components of our operations. Adjusted gross margin differs from gross margin, in that
gross margin includes depreciation expense. We believe adjusted gross margin is important because it focuses on the current operating performance of our
operations  and  excludes  the  impact  of  the  prior  historical  costs  of  the  assets  acquired  or  constructed  that  are  utilized  in  those  operations.  Depreciation
expense does not accurately reflect the costs required to maintain and replenish the operational usage of our assets and therefore may not portray the costs
from  current  operating  activity.  Rather,  depreciation  expense  reflects  the  systematic  allocation  of  historical  property  and  equipment  values  over  the
estimated useful lives.

Adjusted gross margin has certain material limitations associated with its use as compared to gross margin. These limitations are primarily due to
the exclusion of depreciation expense, which is material to our results of operations. Because we use capital assets, depreciation expense is a necessary
element  of  our  costs  and  our  ability  to  generate  revenue.  In  order  to  compensate  for  these  limitations,  management  uses  this  non-GAAP  measure  as  a
supplemental measure to other GAAP results to provide a more complete understanding of our performance.

As an indicator of our operating performance, adjusted gross margin should not be considered an alternative to, or more meaningful than, gross
margin  as  determined  in  accordance  with  GAAP.  Our  adjusted  gross  margin  may  not  be  comparable  to  a  similarly  titled  measure  of  another  company
because other entities may not calculate adjusted gross margin in the same manner.

28

 
 
 
Reconciliation

The following table calculates gross margin, the most directly comparable GAAP financial measure, and reconciles it to adjusted gross margin:

Total revenue
Costs of revenue, exclusive of depreciation and amortization
Depreciation allocable to costs of revenue
Gross margin
Depreciation allocable to costs of revenue

Adjusted gross margin

Liquidity and Capital Resources

Our working capital positions as of December 31, 2022 and 2021 were as follows:

Current Assets:

Cash and cash equivalents
Trade accounts receivable, net
Inventory, net
Federal income tax receivable
Prepaid income taxes
Prepaid expenses and other
Total current assets

Current Liabilities:

Accounts payable
Accrued liabilities
Current operating leases
Deferred income
Total current liabilities

Net working capital

Year Ended December 31,

2022

2021

(in thousands)

84,825  $
(46,357)
(23,551)
14,917 
23,551 
38,468  $

72,420 
(45,365)
(24,753)
2,302 
24,753 
27,055 

$

$

As of December 31,

2022

2021

(in thousands)

$

3,372  $

14,668 
23,414 
11,538 
10 
1,145 
54,147 

6,481 
23,726 
155 
37 
30,399 
23,748  $

$

22,942 
10,389 
19,329 
11,538 
51 
854 
65,103 

4,795 
14,103 
68 
1,312 
20,278 
44,825 

For the year ended December 31, 2022, we invested approximately $65.1 million in rental equipment, property and other equipment. During the
year, we added $61.7 million in new equipment to our rental fleet and $3.4 million in other property and equipment. Our investment in rental equipment
includes any changes to work-in-progress related to our rental fleet jobs at the beginning of the year compared to the end of the year. Our rental work-in-
progress  increased  by  $31.8  million  during  2022.  We  financed  our  investment  in  rental  equipment,  property  and  other  equipment  with  cash  flows  from
operations  during  2022  and  borrowings  under  our  revolving  credit  facility. We  anticipate  that  our  cash  flows  from  operations  as  well  as  our  borrowing
capacity under our New Credit Agreement (defined below) will provide ample liquidity for our planned capital expenditures during 2023 and beyond.  

Cash flows

At  December  31,  2022,  we  had  cash  and  cash  equivalents  of  $3.4  million  compared  to  $22.9  million  at  year  end  2021.  Our  cash  flow  from
operations of $27.8 million was offset by capital expenditures of $65.1 million during 2022. We had net proceeds of $25.0 million from borrowings under
our revolving credit facility. In addition, we expended $6.7 million in

29

 
 
 
 
 
 
 
 
connection  with  our  share  repurchase  program.  We  also  had  working  capital  of  $23.7  million  at  December  31,  2022  compared  to  $44.8  million  at
December 31, 2021. We had net cash flow from operating activities of $27.8 million during 2022 compared $28.5 million during 2021. Our cash flow from
operating activities of $27.8 million was primarily the result of our rental and sales gross margins.

Senior Bank Borrowings

Previous Credit Agreement

We  had  a  senior  secured  revolving  credit  agreement  (the  "Previous  Credit  Agreement")  with  JP  Morgan  Chase  Bank,  N.A  (the  "Lender")  that

matured on March 31, 2021. The Previous Credit Agreement had an aggregate commitment of $30 million, subject to collateral availability.

New Credit Agreement

On  May  11,  2021,  we  entered  into  a  five-year  senior  secured  revolving  credit  agreement  ("New  Credit  Agreement")  with  Texas  Capital  Bank,
National Association (the "Lender") with an initial commitment of $20 million and an accordion feature that would increase the maximum commitment to
$30 million, subject to collateral availability. We also have a right to request from the Lender, on an uncommitted basis, an increase of up to $30 million on
the aggregate commitment; provided, however, the aggregate commitment amount is not permitted to exceed $50 million. The maturity date of the New
Credit Agreement is May 11, 2026. The obligations under the New Credit Agreement are secured by a first priority lien on a variety of our assets, including
inventory and accounts receivable as well as a variable number of our leased compressor equipment.As of December 31, 2022, we were in compliance with
all financial covenants in our New Credit Agreement. At December 31, 2022, we had $25 million outstanding under the New Credit Agreement with a
weighted average interest rate of 7.32%.

Amended and Restated Credit Agreement

On February 28, 2023, we entered into a five-year senior secured revolving credit agreement (“Amended and Restated Credit Agreement”) with
Texas Capital Bank, as administrative agent (the “Lender”), TCBI Securities, Inc., as joint lead arranger and sole book runner and Bank of America, N.A.,
as joint lead arranger, with an initial commitment of $175 million as of the closing date. Subject to collateral availability, we also have a right to request
from the Lender, on an uncommitted basis, an increase of up to $125 million on the aggregate commitment; provided, however, the aggregate commitment
amount is not permitted to exceed $300 million. The maturity date of the Amended and Restated Credit Agreement is February 28, 2028. The obligations
under  the  Amended  and  Restated  Credit  Agreement  are  secured  by  a  first  priority  lien  on  a  variety  of  our  assets,  including  inventory  and  accounts
receivable as well as a variable number of our leased compressor equip.

Borrowing Base. At any time before the maturity of the Amended and Restated Credit Agreement, we may draw, repay and re-borrow amounts
available under the borrowing base up to the maximum aggregate availability discussed above. Generally, the borrowing base equals the sum of (a) 85% of
eligible accounts receivable owed to the Company, plus (b) 50% of the eligible inventory, valued at the lower of cost or market value at such time, subject
to a cap of this component not to exceed $2.5 million, plus (c) the lesser of (i) 95% of the net book value of the compressors that the Lender has determined
are eligible for the extension of credit, valued at the lower of cost or market value with depreciation not to exceed 25 years, at such time and (ii) 80% of the
net liquidation value percentage of the net book value of the eligible compressors that the Lender has determined are eligible for the extension of credit,
valued at the lower of cost or market value with depreciation not to exceed 25 years, at such time, plus (d) 80% of the net book value, valued at the lower of
cost (excluding any costs for capitalized interest or other noncash capitalized costs) or market of the eligible new compressor fleet, minus (e) any required
availability reserves determined by the Lender in its sole discretion. The Lender may adjust the borrowing base components if material deviations in the
collateral are discovered in future audits of the collateral.

Interest and Fees. Under the terms of the Amended and Restated Credit Agreement, we have the option of selecting the applicable variable rate for
each  revolving  loan,  or  portion  thereof,  of  either  (a)  the  Base  Rate  (as  defined  below)  plus  the  Applicable  Margin,  or  (b)  in  the  case  of  a  Term  SOFR
("Secured Overnight Financing Rate") Loan, the Adjusted Term SOFR rate plus the Applicable Margin. "Base Rate" means, for any day, a rate of interest
per annum equal to the highest of (a) the prime rate for such day; (b) the sum of the federal funds rate for such day plus 0.50%; and (c) the Adjusted Term
SOFR for such day plus 1.00%. The Applicable Margin is determined based upon the leverage ratio as set forth in the most recent compliance certificate
received by the Lender for each fiscal quarter from time to time pursuant to the Amended and Restated Credit Agreement. Depending on the leverage ratio,
the Applicable Margin can be 2.00% to 2.75% for Base Rate Loans (as defined in the Amended and Restated Credit Agreement) and 3% to 3.75% for Term
SOFR Loans and for requested letters of credit. In addition, we are required to pay a monthly commitment fee on the daily average unused amount of the
commitment while the Amended and Restated Credit Agreement is in effect at an annual rate equal to 0.50% of the unused commitment amount. Accrued
interest is payable monthly on outstanding principal amounts and unused commitment fee, provided that

30

 
accrued interest on Term SOFR Loans is payable at the end of each interest period, but in no event less frequently than quarterly.

Covenants. The Amended and Restated Credit Agreement contains customary representations and warranties, as well as covenants which, among
other things, condition or limit our ability to incur additional indebtedness and liens; enter into transactions with affiliates; make acquisitions in excess of
certain amounts; pay dividends; redeem or repurchase capital stock or senior notes; make investments or loans; make negative pledges; consolidate, merge
or effect asset sales; or change the nature of our business. In addition, we are subject to certain financial covenants in the Amended and Restated Credit
Agreement that require us to maintain (i) a leverage ratio, as defined, lesser than or equal to 3.50 to 1.00 as of the last day of each fiscal quarter ending on
or prior to December 31, 2024 and 3.25 to 1.00 for the fiscal quarter ending March 31, 2025 and for each fiscal quarter thereafter and (ii) a fixed charge
coverage ratio greater than or equal to1.25 to 1.00 as of the last day of each fiscal quarter.

Events of Default and Acceleration. The Amended and Restated Credit Agreement contains customary events of default for credit facilities of this
size and type, and includes, without limitation, payment defaults; defaults in performance of covenants or other agreements contained in the Amended and
Restated  Credit  Agreement  and  the  other  transaction  documents;  inaccuracies  in  representations  and  warranties;  certain  defaults,  termination  events  or
similar  events;  certain  defaults  with  respect  to  any  other  Company  indebtedness  in  excess  of  $1  million;  certain  bankruptcy  or  insolvency  events;  the
rendering of certain judgments in excess of $1 million; certain ERISA events; certain change in control events and the defectiveness of any liens under the
secured revolving credit agreement. Obligations outstanding under the Amended and Restated Credit Agreement may be accelerated upon the occurrence
of an event of default.

As of December 31, 2022, we were in compliance with all financial covenants in our 2022 Credit Agreement.

Components of Our Principal Capital Expenditures

Capital expenditures for the years ended December 31:

Expenditure Category

Rental equipment and property and equipment

2022

2021

(in thousands)

$

65,122  $

25,710 

The level of our expenditures will vary in future periods depending on energy market conditions and other related economic factors.  Based upon
existing economic and market conditions, we believe that our cash on hand, operating cash flow and available line of credit are adequate to fully fund our
net capital expenditures requirements for 2023.  We also believe we have flexibility with respect to our financing alternatives and adjustments to our capital
expenditure plans if circumstances warrant. We do not have any material continuing commitments related to our current operations that cannot be met with
our cash on hand and our line of credit. However, our financing capacity could be negatively impacted by other economic factors. Please see Item 1A, Risk
Factors, of this report.

Off-Balance Sheet Arrangements

From  time-to-time,  we  enter  into  off-balance  sheet  arrangements  and  transactions  that  can  give  rise  to  off-balance  sheet  obligations.  As  of

December 31, 2022, we did not have any material off-balance sheet arrangements.

Recently Issued Accounting Pronouncements

In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (ASC Topic 326): Measurement of Credit Losses on Financial
Instruments.  The  amendments  to  ASC  Topic  326  require  immediate  recognition  of  estimated  credit  losses  expected  to  occur  over  the  remaining  life  of
many financial assets, including trade receivables. For companies that qualify as smaller reporting companies, the amendments in this update are effective
for  interim  and  annual  periods  beginning  after  January  1,  2023.  We  are  currently  evaluating  the  impact  of  ASU  2016-13  on  our  consolidated  financial
statements and note disclosures.

Environmental Regulations

Various federal, state and local laws and regulations covering the discharge of materials into the environment, or otherwise relating to protection of
human  safety  and  health  and  the  environment,  affect  our  operations  and  costs.  Compliance  with  these  laws  and  regulations  could  cause  us  to  incur
remediation  or  other  corrective  action  costs  or  result  in  the  assessment  of  administrative,  civil  and  criminal  penalties  and  the  issuance  of  injunctions
delaying or prohibiting operations. In addition, we have acquired certain properties and plant facilities from third parties whose actions with respect to the
management and

31

 
disposal or release of hydrocarbons or other wastes were not under our control. Under environmental laws and regulations, we could be required to remove
or remediate wastes disposed of or released by prior owners. In addition, we could be responsible under environmental laws and regulations for properties
and plant facilities we lease, but do not own. Compliance with such laws and regulations increases our overall cost of business, but has not had a material
adverse effect on our operations or financial condition. It is not anticipated, based on current laws and regulations, that we will be required in the near
future to expend amounts that are material in relation to our total expenditure budget in order to comply with environmental laws and regulations but such
laws and regulations are frequently changed and we are unable to predict the ultimate cost of compliance. We also could incur costs related to the cleanup
of sites to which we send equipment and for damages to natural resources or other claims related to releases of regulated substances at such sites.

ITEM 7A.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Not applicable to Smaller Reporting Companies.

ITEM 8.    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Our consolidated financial statements and supplementary financial data are included in this Annual Report on Form 10-K beginning on page F-1.

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

We maintain “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as
amended  (the  “Exchange  Act”),  that  are  designed  to  ensure  that  information  required  to  be  disclosed  in  the  reports  that  we  file  or  submit  under  the
Exchange Act is (1) recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms and (2) accumulated and
communicated to our management, including our principal executive officer and principal financial officer, to allow timely decisions regarding required
disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of
achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

Our management, with the participation of our Interim Chief Executive Officer and Interim Chief Financial Officer, evaluated the effectiveness of
our  disclosure  controls  and  procedures  as  of  December  31,  2022.  Based  upon  the  evaluation,  our  Interim  Chief  Executive  Officer  and  Interim  Chief
Financial  Officer  concluded  that,  as  of  such  date,  our  disclosure  controls  and  procedures  were  not  effective  at  a  reasonable  assurance  level,  due  to  the
material weakness identified during fiscal year 2022,

Management’s Report on Internal Control Over Financial Reporting

Our management, including the Interim Chief Executive Officer and our Interim Chief Accounting Officer, is responsible for establishing and
maintaining adequate internal control over financial reporting (“ICFR”), as defined in Rule 13a-15(f) and 15d-15(f) under the Exchange Act. Our internal
control  over  financial  reporting  is  designed  to  provide  reasonable  assurance  regarding  the  reliability  of  financial  reporting  and  the  preparation  of  the
consolidated financial statements for external purposes in accordance with GAAP.

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.

Our management conducted an evaluation of the effectiveness of the Company’s internal control over financial reporting as of December 31,
2022, based on the Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission
(COSO).

Based on the results of this evaluation, the Company’s management concluded that internal control over financial reporting was not effective as

of December 31, 2022, due to the material weakness listed below.

32

 
A  material  weakness  is  a  deficiency,  or  a  combination  of  deficiencies,  in  ICFR,  such  that  there  is  a  reasonable  possibility  that  a  material

misstatement of our annual or interim financial statements will not be prevented or detected on a timely basis.

Management  identified  a  material  weakness  in  its  internal  control  over  financial  reporting  at  December  31,  2022,  over  our  inventory  process.
Specifically,  we  have  identified  issues  related  to:  classification  of  inventory  work  in  progress;  year-end  physical  inventory  count  procedures,  and  the
process to review and approve inventory adjusting journal entries.

After giving full consideration to this material weakness, and the additional analyses and other procedures that we performed to ensure that our
consolidated  financial  statements  included  in  this  Annual  Report  on  Form  10-K  were  prepared  in  accordance  with  U.S.  generally  accepted  accounting
principles  (“US  GAAP”),  our  management  has  concluded  that  our  consolidated  financial  statements  present  fairly,  in  all  material  respects  our  financial
position, results of operations and cash flows for the periods disclosed in conformity with US GAAP.

Remediation Plan for Material Weakness

In response to the material weakness, management, with oversight of the Audit Committee of the Board of Directors, has begun the process of,
and is committed to, designing and implementing effective measures to strengthen our internal controls over financial reporting and remediate the material
weakness.

Our planned internal control remediation efforts include:

a. We intend to update and implement accounting policies and procedures related to work in process inventory. These will include modifying our

financial reporting account consolidation procedures.

b. We intend to improve and enforce our formalized inventory count and inventory adjustment processes which includes taking steps to reinforce the
inventory  taking  procedures,  proper  training  and  supervision  of  warehouse  staff  and  strengthening  review  and  approval  requirements  for  any
inventory adjustments.

c. We have engaged a third-party consultant to conduct a full assessment of our controls and procedures.
d. We  intend  to  continue  efforts  to  ensure  our  employees  understand  the  ongoing  importance  of  internal  controls  and  compliance  with  corporate

policies and procedures.

While these actions and planned actions are subject to ongoing management evaluation and will require validation and testing of the design and
operating effectiveness of internal controls over a sustained period of financial reporting cycles, we are committed to the continuous improvement of our
internal control over financial reporting and will continue to diligently review our internal control over financial reporting.

Attestation Report of the Registered Public Accounting Firm

This Annual Report on Form 10-K does not include an attestation report of our registered public accounting firm on our ICFR because we are a

Smaller Reporting Company and are not subject to auditor attestation requirements under applicable SEC rules.

Changes in Internal Control Over Financial Reporting

During the quarter ended December 31, 2022, there were no changes in our ICFR that have materially affected, or are reasonably likely to materially affect,
our internal control over financial reporting.

ITEM 9B.    OTHER INFORMATION

None.

ITEM 9C.    DISCLOSURES REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS

None.

33

 
ITEM 10.    DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

PART III

The  information  required  by  this  item  is  incorporated  herein  by  reference  to  the  sections  “Election  of  Directors,”    “Executive  Officers,”
“Corporate Governance” and “The Board of Directors and its Committees” in our definitive proxy statement which will be filed with the Securities and
Exchange Commission within 120 days after December 31, 2022 or as such period may be extended by action of the Securities and Exchange Commission.

We have adopted a Code of Business Conduct and Ethics that applies to our directors, officers and employees. The Code of Business Conduct
and Ethics is posted in the "Investor Relations" section of our website at www.ngsgi.com. The Code of Business Conduct and Ethics maybe obtained free
of charge by writing before to Natural Gas Services Group, Inc., Attn: Investor Relations, 404 Veterans Airpark Lane, Ste 300 Midland, TX 79705.

ITEM 11.    EXECUTIVE COMPENSATION

The  information  required  by  this  item  is  incorporated  herein  by  reference  to  the  section  “Executive  Compensation”  in  our  definitive  proxy
statement which will be filed with the Securities and Exchange Commission within 120 days after December 31, 2022 or as such period may be extended
by action of the Securities and Exchange Commission.

ITEM 12.     SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER

MATTERS

The  information  required  by  this  item  is  incorporated  herein  by  reference  to  the  section  “Principal  Shareholders  and  Security  Ownership  of
Management” in our definitive proxy statement which will be filed with the Securities and Exchange Commission within 120 days after December 31,
2022 or as such period may be extended by action of the Securities and Exchange Commission.

ITEM 13.     CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

The  information  required  by  this  item  is  incorporated  herein  by  reference  to  the  sections  “Related  Person  Transactions”  and  “Corporate
Governance” in our definitive proxy statement which will be filed with the Securities and Exchange Commission within 120 days after December 31, 2022
or as such period may be extended by action of the Securities and Exchange Commission.

ITEM 14.     PRINCIPAL ACCOUNTANT FEES AND SERVICES

The  information  required  by  this  item  is  incorporated  herein  by  reference  to  the  section  “Principal  Accountant  Fees  and  Services”  in  our
definitive proxy statement which will be filed with the Securities and Exchange Commission within 120 days after December 31, 2022 or as such period
may be extended by action of the Securities and Exchange Commission.

34

PART IV

ITEM 15.    EXHIBITS AND CONSOLIDATED FINANCIAL STATEMENTS

The following documents are filed as part of this Annual Report on Form 10-K:

(a)(1) and (a)(2) Consolidated Financial Statements

For a list of Consolidated Financial Statements, see “Index to Consolidated Financial Statements” incorporated herein by reference.

(a)(3) Exhibits

A list of exhibits to this Annual Report on Form 10-K is set forth below:

Exhibit    No.                                                                           Description
3.1

3.2

4.1

4.2

4.3

10.1†

10.2†

10.3†

10.4†

10.5†

10.6†

10.7

10.8

Articles of Incorporation, as amended (Incorporated by reference to Exhibit 3.1 of the 10-QSB filed and dated November 10, 2004).
Bylaws, as amended (Incorporated by reference to Exhibit 3.1 of the Registrant's Current Report on Form 8-K filed with the Securities and
Exchange Commission on February 10, 2021.)
Description of Securities (Incorporated by reference to the Registrant's Registration Statement on From 8-A, filed with the SEC on October
27, 2008.)
Form of Senior Indenture (Incorporated by reference to Exhibit 4.1 of the Registrant's Registration Statement on From S-3 (No. 333-261091)
and filed on November 16, 2021)
Form of Subordinated Indenture (Incorporated by reference to Exhibit 4.4 of the Registrant's Registration Statement on Form S-3 (No. 333-
261091) and filed on November 16, 2021
2019 Equity Incentive Plan, as amended (Incorporated by reference to Exhibit 4.3 of the Registrant’s Registration Statement on Form S-8
filed with the Securities and Exchange Commission on July 12, 2022.)
Stock Option Plan, as amended and restated (Incorporated by reference to Exhibit 10.1 of the Registrant’s Current Report on Form 8-K filed
with the Securities and Exchange Commission on June 21, 2016.)
Retirement Agreement dated May 17, 2022 between Natural Gas Services Group, Inc. and Stephen C. Taylor (Incorporated by reference to
Exhibit 10.1 of the Registrant’s Current Report on Form 8-K filed with the Securities and Exchange Commission on May 19, 2022.)
Severance Agreement and Release Between Natural Gas Services Group, Inc. and John W. Chisholm dated December 21, 2022 (Incorporated
by reference to Exhibit 10.1 of the Registrant’s Current Report on Form 8-K filed with the Securities and Exchange Commission on
December 28, 2022.)
Letter Agreement between Natural Gas Services Group, Inc. and James D. Faircloth dated February 8, 2023 (Incorporated by reference to
Exhibit 10.1 of the Registrant’s Current Report on Form 8-k filed with the Securities and Exchange Commission on February 13, 2023.)
The Executive Nonqualified Excess Plan Adoption Agreement, referred to as the Nonqualified Deferred Compensation Plan (Incorporated by
reference to Exhibit 10.11 of the Registrant's Quarterly report on Form 10-Q filed with the Securities and Exchange Commission on May 6,
2016.)
Amended and Restated Credit Agreement dated February 28, 2023, among Natural Gas Services Group, Inc., the other Loan Parties thereto,
Texas Capital Bank, in its capacity as Administrative Agent and the Lenders party thereto (Incorporated by reference to Exhibit 10.1 of the
Registrant’s Current Report on Form 8-K filed with the Securities and Exchange Commission on March 6, 2023.)
Amended and Restated Pledge and Security Agreement dated February 28, 2023, among Natural Gas Services Group, Inc., the Grantors
thereto, Texas Capital Bank, in its capacity as Administrative Agent, for the Lenders and other Secured Parties (Incorporated by reference to
Exhibit 10.2 of the Registrant’s Current Report on Form 8-K filed with the Securities and Exchange Commission on March 6, 2023.)

35

 
10.9†

*21.1
*23.1
*23.2
*31.1
*31.2
*32.1
*32.2
101.INS
101.SCH
101.CAL
101.DEF
101.LAB
101.PRE

Letter Agreement dated June 9, 2022 between Natural Gas Services Group, Inc. and John W. Chisholm (Incorporated by reference to Exhibit
10.1 of the Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 13, 2022.)
Subsidiaries of the registrant
Consent of Ham, Langston & Brezina L.L.P.
Consent of Moss Adams LLP
Certification of Interim Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
Certification of Interim Principal Accounting Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
Certification of Interim Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
Certification of Interim Principal Accounting Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
XBRL Instance Document
XBRL Taxonomy Extension Schema Document
XBRL Taxonomy Extension Calculation Linkbase Document
XBRL Taxonomy Extension Definition Linkbase Document
XBRL Taxonomy Extension Label Linkbase Document
XBRL Taxonomy Extension Presentation Linkbase Document

 * Filed herewith.

ITEM 16.     FORM 10-K SUMMARY

None.

36

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, thereunto duly authorized.

SIGNATURES

March 31, 2023

NATURAL GAS SERVICES GROUP, INC.

By:

/s/ Stephen C. Taylor
     Stephen C. Taylor
Chairman of the Board, Interim President and Chief Executive
Officer
(Principal Executive Officer)

POWER OF ATTORNEY

KNOW  ALL  PERSONS  BY  THESE  PRESENTS,  that  each  person  whose  signature  appears  below  constitutes  and  appoints  Stephen  C.  Taylor  and
James  D.  Faircloth,  jointly  and  severally,  as  his/her  true  and  lawful  attorneys-in-fact  and  agents,  with  full  power  of  substitution  and  resubstitution,  for
him/her and in his/her name, place and stead, in any and all capacities, to sign any and all amendments to this Annual Report on Form 10-K and to file the
same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-
in-fact and agents full power and authority to do and perform each and every act and thing requisite or necessary to be done in and about the premises
hereby ratifying and confirming all that said attorneys-in-fact and agents, or his substitute or substitutes, may lawfully do or cause to be done by virtue
hereof.

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:

Signature

/s/ Stephen C. Taylor

     Stephen C. Taylor

/s/ James D. Faircloth

      James D. Faircloth

/s/ Leslie A. Beyer

     Leslie A. Beyer

/s/ Nigel J. Jenvey

     Nigel J. Jenvey

/s/ David L. Bradshaw

     David L. Bradshaw

Title

Date

Chairman of the Board of Directors, Interim Chief Executive
Officer and President (Principal Executive Officer)

March 31, 2023

Interim Chief Financial Officer (Principal Accounting Officer)

March 31, 2023

Director

Director

Director

37

March 31, 2023

March 31, 2023

March 31, 2023

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Reports of Independent Registered Public Accounting Firm (Ham, Langston & Brezina, LLP; Houston, Texas; PCAOB ID 298 and
Report of Independent Registered Public Accounting Firm (Moss Adams, LLP; Dallas, Texas; PCAOB ID 659)

Consolidated Balance Sheets as of December 31, 2022 and 2021

Consolidated Statements of Operations for the Years Ended December 31, 2022 and 2021

Consolidated Statements of Stockholders' Equity for the Years Ended December 31, 2022 and 2021

Consolidated Statements of Cash Flows for the Years Ended December 31, 2022 and 2021

Notes to Consolidated Financial Statements

Page

F-1

F-3

F-4

F-5

F-6

F-7

38

 
 
 
 
 
 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm

To the Shareholders and the Board of Directors of
Natural Gas Services Group, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheet of Natural Gas Services Group, Inc. and subsidiary (the “Company”) as of December 31,
2022, and the related consolidated statements of operations, stockholders’ equity, and cash flows for the year then ended, and the related notes (collectively
referred  to  as  the  “consolidated  financial  statements”).  In  our  opinion,  the  consolidated  financial  statements  present  fairly,  in  all  material  respects,  the
consolidated financial position of the Company as of December 31, 2022, and the consolidated results of its operations and its cash flows for the year then
ended, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s
consolidated financial statements based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board
(United States) ("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  the  consolidated  financial  statements  are  free  of  material  misstatement,  whether  due  to  error  or  fraud.  The  Company  is  not
required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audit we are required to obtain an
understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal
control over financial reporting. Accordingly, we express no such opinion.

Our  audit  included  performing  procedures  to  assess  the  risks  of  material  misstatement  of  the  consolidated  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 consolidated financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by
management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audit provides a reasonable basis
for our opinion.

Critical Audit Matter

Critical audit matters are matters arising from the current period audit of the consolidated 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. We determined that there are no critical audit matters.

/s/ Ham, Langston & Brezina LLP

Houston, Texas
March 31, 2023

We have served as the Company's auditor since 2022.

F - 1

Report of Independent Registered Public Accounting Firm

To the Shareholders and the Board of Directors of
Natural Gas Services Group, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheet of Natural Gas Services Group, Inc. and subsidiary (the “Company”) as of December 31,
2021, and the related consolidated statements of operations, stockholders’ equity, and cash flows for the year then ended, and the related notes (collectively
referred  to  as  the  “consolidated  financial  statements”).  In  our  opinion,  the  consolidated  financial  statements  present  fairly,  in  all  material  respects,  the
consolidated financial position of the Company as of December 31, 2021, and the consolidated results of its operations and its cash flows for the year then
ended, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s
consolidated financial statements based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board
(United States) ("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  the  consolidated  financial  statements  are  free  of  material  misstatement,  whether  due  to  error  or  fraud.  The  Company  is  not
required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audit we are required to obtain an
understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal
control over financial reporting. Accordingly, we express no such opinion.

Our  audit  included  performing  procedures  to  assess  the  risks  of  material  misstatement  of  the  consolidated  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 consolidated financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by
management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audit provides a reasonable basis
for our opinion.

/s/ Moss Adams LLP

Dallas, Texas
March 18, 2022

We have served as the Company's auditor from 2020 to 2022.

F - 2

NATURAL GAS SERVICES GROUP, INC.
CONSOLIDATED BALANCE SHEETS
(in thousands)

December 31,

2022

2021

Current Assets:

ASSETS

Cash and cash equivalents
Trade accounts receivable, net of allowance for doubtful accounts of $338 and $1,129, respectively
Inventory
Federal income tax receivable
Prepaid income taxes
Prepaid expenses and other
Total current assets

Long-Term Inventory, net of allowance for obsolescence of $120 and $64, respectively
Rental equipment, net of accumulated depreciation of $177,729 and $172,563, respectively
Property and equipment, net of accumulated depreciation of $16,981 and $15,784, respectively
Right of use assets - operating leases, net of accumulated amortization $721 and $555, respectively
Intangibles, net of accumulated amortization of $2,259 and $2,134, respectively
Other assets

Total assets

LIABILITIES AND STOCKHOLDERS' EQUITY

Current Liabilities:
Accounts payable
Accrued liabilities
Current operating leases
Deferred income

Total current liabilities

Credit facility
Deferred income tax liability
Long-term operating leases
Other long-term liabilities

Total liabilities

Commitments and contingencies (Note 15)
Stockholders’ Equity:
Preferred stock, 5,000 shares authorized, no shares issued or outstanding
Common stock, 30,000 shares authorized, par value $0.01; 13,519 and 13,394 shares issued, respectively
Additional paid-in capital
Retained earnings
Treasury shares, at cost, 1,310 shares and 775, respectively

Total stockholders' equity

Total liabilities and stockholders' equity

$

$

$

$

3,372  $

14,668 
23,414 
11,538 
10 
1,145 
54,147 
1,557 
246,450 
22,176 
349 
900 
2,667 
328,246  $

6,481  $

23,726 
155 
37 
30,399 
25,000 
39,798 
194 
2,779 
98,170 

— 
135 
115,411 
129,534 
(15,004)
230,076 
328,246  $

22,942 
10,389 
19,329 
11,538 
51 
854 
65,103 
1,582 
206,985 
20,828 
285 
1,025 
2,698 
298,506 

4,795 
14,103 
68 
1,312 
20,278 
— 
39,288 
217 
2,813 
62,596 

— 
134 
114,017 
130,103 
(8,344)
235,910 
298,506 

See accompanying notes to these consolidated financial statements.

F - 3

 
 
 
 
 
 
 
 
 
NATURAL GAS SERVICES GROUP, INC.
CONSOLIDATED STATEMENTS OF OPERATIONS
(in thousands, except earnings per share)

Revenue:
Rental income
Sales
Service and maintenance income
Total revenue
Operating costs and expenses:
Cost of rentals, exclusive of depreciation stated separately below
Cost of sales, exclusive of depreciation stated separately below
Cost of service and maintenance, exclusive of depreciation stated separately below
Selling, general and administrative expenses
Depreciation and amortization
Inventory allowance
Retirement of rental equipment
Total operating costs and expenses
Operating income (loss)
Other income (expense):
Interest expense
Other income (expense)
Total other income, net
Income (loss) before income taxes:
(Provision for) benefit from income taxes:
Current
Deferred
Total income tax benefit (expense)

Net loss

Loss per share:
Basic
Diluted
Weighted average shares outstanding:
Basic
Diluted

See accompanying notes to these consolidated financial statements.

F - 4

$

$

$
$

Year Ended December 31,
2021
2022

74,465  $
8,568 
1,792 
84,825 

37,750 
7,650 
957 
13,642 
24,116 
83 
196 
84,394 
431 

(364)
(108)
(472)
(41)

(17)
(511)
(528)
(569) $

(0.05) $
(0.05) $

12,305 
12,305 

63,624 
6,882 
1,914 
72,420 

36,638 
7,829 
898 
10,762 
25,397 
208 
3,096 
84,828 
(12,408)

(65)
687 
622 
(11,786)

1 
2,602 
2,603 
(9,183)

(0.70)
(0.70)

13,100 
13,100 

 
 
 
 
 
 
 
 
 
 
 
 
NATURAL GAS SERVICES GROUP, INC.
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(in thousands)

Preferred Stock

Common Stock

Additional
Paid-In
Capital

Retained
Earnings

Treasury Stock

Shares

Amount

Total
Stockholders'
Equity

Amount

133  $

112,615  $

139,286 

38  $

(490) $

251,544 

BALANCES, December 31, 2020
Compensation expense on common
stock options
Issuance of restricted stock
Compensation expense on restricted
common stock
Taxes paid related to net shares
settlement of equity awards
Purchase of treasury shares
Net loss
BALANCES, December 31, 2021
Compensation expense on common
stock options
Issuance of restricted stock
Compensation expense on restricted
common stock
Taxes paid related to net shares
settlement of equity awards
Purchase of treasury shares
Net loss

BALANCES, December 31, 2022

Shares

Amount

—  $

— 
— 

— 

— 
— 
— 
— 

— 
— 

— 

— 
— 
— 
—  $

— 

— 
— 

— 

— 
— 
— 
— 

— 
— 

— 

— 
— 
— 
— 

Shares
13,296  $

— 
98 

— 

— 
— 
— 
13,394 

— 
125 

— 

— 
— 

1 

— 
— 
— 
134 

— 
— 

1 

1 
— 

1,737 

(336)
— 
— 
114,017 

255 
— 

1,654 

— 
— 

— 

— 
— 
(9,183)
130,103 

— 
— 

— 

— 
— 

— 

— 
737 
— 
775 

— 
— 

— 

— 
— 

— 

— 
(7854)
— 
(8,344)

— 
— 

— 

— 
— 
— 
13,519  $

— 
— 
— 
135  $

(515)
— 
— 
115,411  $

— 
— 
(569)
129,534 

— 
535 
— 
1,310  $

— 
(6,660)
— 
(15,004) $

1 
— 

1,738 

(336)
(7,854)
(9,183)
235,910 

255 
— 

1,655 

(515)
(6,660)
(569)
230,076 

See accompanying notes to these consolidated financial statements.

F - 5

 
NATURAL GAS SERVICES GROUP, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)

CASH FLOWS FROM OPERATING ACTIVITIES:

Net loss

Adjustments to reconcile net loss to net cash provided by operating activities:

Year Ended December 31,
2021
2022

$

(569) $

Depreciation and amortization
Amortization of debt issuance costs
Deferred taxes
Gain on disposal of assets
Retirement of rental equipment
Bad debt allowance
Inventory allowance
Stock-based compensation
(Gain) loss on company owned life insurance

Changes in operating assets and liabilities:

Trade accounts receivables
Inventory
Prepaid income taxes and prepaid expenses
Accounts payable and accrued liabilities
Deferred income
Other

NET CASH PROVIDED BY OPERATING ACTIVITIES
CASH FLOWS USED IN INVESTING ACTIVITIES:

Purchase of rental equipment, property and other equipment
Purchase of company owned life insurance
Proceeds from sale of property and equipment
NET CASH USED IN INVESTING ACTIVITIES
CASH FLOWS USED IN FINANCING ACTIVITIES:

Proceeds from line of credit
Proceeds of other long-term liabilities
Repayments of line of credit, net
Payments of debt issuance costs
Purchase of treasury shares
Taxes paid related to net share settlement of equity awards

NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES
NET CHANGE IN CASH AND CASH EQUIVALENTS
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD

CASH AND CASH EQUIVALENTS AT END OF PERIOD
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:

Interest paid

NON-CASH TRANSACTIONS

Right of use asset acquired through an operating lease

24,116 
48 
510 
(250)
196 
— 
83 
1,910 
389 

(4,279)
(4,143)
(250)
11,309 
(1,275)
(31)
27,764 

(65,122)
(329)
372 
(65,079)

25,000 
(3)
— 
(77)
(6,660)
(515)
17,745 
(19,570)
22,942 

$

$

3,372  $

276  $

229 

See accompanying notes to these consolidated financial statements.

F - 6

(9,183)

25,397 
31 
(2,602)
(182)
3,096 
65 
208 
1,738 
(298)

1,430 
(1,277)
(460)
9,756 
208 
600 
28,527 

(25,710)
(150)
195 
(25,665)

— 
(1)
(417)
(237)
(7,854)
(336)
(8,845)
(5,983)
28,925 
22,942 

30 

— 

 
 
 
 
 
 
 
 
 
 
 
NATURAL GAS SERVICES GROUP INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. Description of Business

Natural Gas Services Group, Inc. (the "Company", “NGS”, "Natural Gas Services Group", "we" or "our") (a Colorado corporation), is a leading
provider  of  natural  gas  compression  equipment  and  services  to  the  energy  industry.  The  Company  manufactures,  fabricates,  rents,  sells  and  maintains
natural gas compressors and flare systems for oil and natural gas production and plant facilities. NGS is headquartered in Midland, Texas, with fabrication
facilities  located  in  Tulsa,  Oklahoma  and  Midland,  Texas,  and  service  facilities  located  in  major  oil  and  natural  gas  producing  basins  in  the  U.S.  The
Company was formed on December 17, 1998.

2. Summary of Significant Accounting Policies

Principles of Consolidation

The accompanying consolidated financial statements include the accounts of the Company, its subsidiary, NGSG Properties, LLC and the rabbi
trust  associated  with  the  Company’s  deferred  compensation  plan,  see  Note  10.  All  significant  intercompany  accounts  and  transactions  for  the  periods
presented have been eliminated in consolidation.

Use of Estimates

The  preparation  of  our  consolidated  financial  statements  in  conformity  with  generally  accepted  accounting  principles  in  the  United  States  of
America  requires  our  management  to  make  estimates  and  assumptions  that  affect  the  amounts  reported  in  these  consolidated  financial  statements  and
accompanying  notes.    Actual  results  could  differ  from  those  estimates.    Significant  estimates  include  fixed  asset  lives,  bad  debt  allowance  and  the
allowance for inventory obsolescence. Additionally, NGS conducts a yearly review of impairment of long-lived assets. Throughout the review, determining
factors are based on estimates that can significantly impact the carrying value of these assets. It is at least reasonably possible these estimates could be
revised in the near term and the revisions could be material.

Cash Equivalents and Financial Instruments

For  purposes  of  reporting  cash  flows,  we  consider  all  short-term  investments  with  an  original  maturity  of  three  months  or  less  to  be  cash
equivalents.  We  invest  our  cash  primarily  in  deposits  and  money  market  funds  with  commercial  banks.   At  times,  cash  balances  at  banks  and  financial
institutions may exceed federally insured amounts.

Accounts Receivable

Our trade receivables consist of customer obligations for the sale of compressors and flare systems due under normal trade terms, and operating
leases  for  the  use  of  our  natural  gas  compressors.  The  receivables  are  not  collateralized  except  as  provided  for  under  lease  agreements.  However,  we
typically require deposits of as much as 50% or use of progress payments for large custom sales contracts. We perform ongoing credit evaluations of our
customers  and  adjust  credit  limits  based  on  management's  assessment  of  the  customer's  financial  condition  and  payment  history,  as  well  as  industry
conditions  and  general  economic  conditions.    We  continuously  monitor  collections  and  payments  from  our  customers,  and  maintain  a  provision  for
estimated credit losses based upon our historical experience and any specific customer collection issues that we have identified.  While such credit losses
have historically been within our expectations and the provisions established, we cannot guarantee that we will continue to experience the same credit loss
rates that we have in the past.  One customer accounted for 55% and 46% of our accounts receivable as of December 31, 2022 and 2021, respectively.  A
significant  change  in  the  liquidity  or  financial  position  of  this  customer  could  have  a  material  adverse  impact  on  the  collectability  of  our  accounts
receivable  and  our  future  operating  results.    The  allowance  for  doubtful  accounts  was  $0.3  million  and  $1.1  million  at  December  31,  2022  and  2021,
respectively. Management believes that the allowance is adequate; however, actual write-offs may exceed the recorded allowance.

F - 7

A summary of our allowance for doubtful accounts is as follows:

($ in thousands)
Beginning balance
Accruals
Recoveries
Write-offs

Ending balance

Revenue Recognition Policy

 Year Ended December 31,

2022

2021

$

$

1,129 
— 
— 
(791)
338 

$

$

1,161 
65 
8 
(105)
1,129 

Revenue is measured based on a consideration specified in a customer’s contract, excluding any sale incentives and taxes collected on behalf of
third parties (i.e. sales and property taxes). Revenue is recognized when a customer obtains control of promised goods or services in an amount that reflects
the consideration that we expect to receive for those goods or services. To recognize revenue, we (i) identify the contract(s) with a customer; (ii) identify
the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the
contract;  and  (v)  recognize  revenue  when,  or  as,  we  satisfy  the  performance  obligation(s).  Shipping  and  handling  costs  incurred  are  accounted  for  as
fulfillment costs and are included in cost of revenues in our Consolidated Statements of Operations.

Nature of Goods and Services

The following is a description of principal activities from which the Company generates its revenue:

Rental Revenue. The Company generates revenue from renting compressors and flare systems to our customers. These contracts, which all qualify
as operating leases under ASC Topic 842, Leases (ASC 842), may also include a fee for servicing the compressor or flare during the rental contract. Our
rental contracts typically range from six to 24 months, with our larger horsepower compressors having contract terms of up to 60 months. Our revenue is
recognized over time, with equal monthly payments over the term of the contract. After the terms of the contract have expired, a customer may renew their
contract or continue renting on a monthly basis thereafter. In accordance with ASC 842 – Leases, we have applied the practical expedient ASC 842-10-15-
42A, which allows the Company to combine lease and non-lease components.

Sales  Revenue.  The  Company  generates  revenue  by  the  sale  of  custom/fabricated  compressors,  flare  systems  and  parts,  as  well  as,

exchange/rebuilding customer owned compressors and sale of used rental equipment.

Custom/fabricated  compressors  and  flare  systems  -  The  Company  designs  and  fabricates  compressors  and  flares  based  on  the  customer’s
specifications outlined in their contract. Though the equipment being built is customized by the customer, control under these contracts does not pass to the
customer until the compressor or flare package is completed and shipped, or in accordance with a bill and hold arrangements the customer accepts title and
assumes the risk and rewards of ownership. We request some of our customers to make progressive payments as the product is being built; these payments
are recorded as a contract liability on the Deferred Income line on the consolidated balance sheet until control has been transferred. These contracts also
may include an assurance warranty clause to guarantee the product is free from defects in material and workmanship for a set duration of time; this is a
standard industry practice and is not considered a performance obligation.

From time to time, upon the customer’s written request, we recognize revenue when manufacturing is complete and the equipment is ready for
shipment.  At  the  customer’s  request,  we  will  bill  the  customer  upon  completing  all  performance  obligations,  but  before  shipment.  The  customer  will
formally request we ship the equipment per their direction from our manufacturing facility at a later specified date and that we segregate the equipment
from our finished goods, such that they are not available to fill other orders. Per the customer’s agreement change of control is passed to the customer once
the equipment is complete and ready for shipment. We have operated using bill and hold agreements with certain customers for many years, with consistent
satisfactory results for both the customer and us. The credit terms on these agreements are consistent with the credit terms on all other sales. All control is
shouldered  by  the  customer  and  there  are  no  exceptions  to  the  customer’s  commitment  to  accept  and  pay  for  the  manufactured  equipment.  Revenues
recognized related to bill and hold arrangements for the years ended December 31, 2022 and 2021 was approximately $0 and $20,000, respectively.

Parts - Revenue is recognized after the customer obtains control of the parts. Control is passed either by the customer taking physical possession or

the parts being shipped. The amount of revenue recognized is not adjusted for expected returns, as our historical part returns have been de minimis.

F - 8

Exchange or rebuilding customer owned compressors - Based on the contract, the Company will either exchange a new/rebuilt compressor for the
customer’s  malfunctioning  compressor  or  rebuild  the  customer’s  compressor.  Revenue  is  recognized  after  control  of  the  replacement  compressor  has
transferred to the customer based on the terms of the contract, i.e., by physical delivery, delivery and installment, or shipment of the compressor.

Used compressors or flares - From time to time, a customer may request to purchase a used compressor or flare out of our rental fleet. Revenue
from the sale of rental equipment is recognized when the control has passed to the customer based on the terms of the contract, i.e. when the customer has
taken physical possession or the equipment has been shipped.

Service and Maintenance Revenue. The Company provides routine or call-out services on customer owned equipment. Revenue is recognized after

services in the contract are rendered.

Payment terms for sales revenue and service and maintenance revenue discussed above are generally 30 to 60 days although terms for specific

customers can vary. Also, the transaction prices are not subject to variable consideration constraints.

Disaggregation of Revenue

The following table shows the Company's revenue disaggregated by product or service type for the years ended:

Compressors - sales
Flares - sales
Other (Parts/Rebuilds) - sales
Service and maintenance
Total revenue from contracts with customers
Add: ASC 842 rental revenue

Total revenue

Contract Balances

Year Ended December 31,

2022

2021

$

$

(in thousands)
3,601  $
239 
4,728 
1,792 
10,360 
74,465 
84,825  $

As of December 31, 2022 and 2021, we had the following receivables and deferred income from contracts with customers:
December 31,

Accounts Receivable

Accounts receivable - contracts with customers
Accounts receivable - ASC 842

Total Accounts Receivable
Less: Allowance for doubtful accounts

Total Accounts Receivable, net

Deferred income

2022

2021

(in thousands)

$

$

$

4,353  $

10,653 
15,006 
(338)
14,668  $

37  $

1,891 
365 
4,626 
1,914 
8,796 
63,624 
72,420 

3,354 
8,164 
11,518 
(1,129)
10,389 

1,312 

The Company recognized $1.3 million in revenue for the year ended December 31, 2022 that was included in deferred income at the beginning of
2022.  For  the  period  ended  December  31,  2021,  the  Company  recognized  revenue  of  $1.1  million  from  amounts  related  to  sales  that  were  included  in
deferred income at the beginning of 2021.

The increases (decreases) of accounts receivable and deferred income were primarily due to normal timing differences between our performance

and the customers’ payments.

F - 9

Transaction Price Allocated to the Remaining Performance Obligations

As of December 31, 2022, the Company did not have revenue related to unsatisfied performance obligations.

Contract Costs

The Company recognizes the incremental costs of obtaining contracts as an expense when incurred if the amortization period of the assets that the
Company otherwise would have recognized is one year or less. These costs are included in selling, general and administrative expense on our Consolidated
Statements of Operations.

Leases

Accounting Standards Codification ("ASC") 842 requires all leases to be reported on the balance sheet as right-of-use ("ROU") assets and lease
obligations. We determine if an arrangement is a lease at inception and determine lease classification and recognize ROU assets and liabilities on the lease
commencement  date  based  on  the  present  value  of  lease  payments  over  the  lease  term.  As  the  discount  rate  implicit  in  the  lease  is  rarely  readily
determinable, we estimate our incremental borrowing rate using information available at the commencement date in determining the present value of the
lease payments. We, as a lessee, apply the practical expedient to not separate non-lease components from lease components, therefore, accounting for each
separate lease component and its associated non-lease component, as a single lease component. For each lease that 1) contains the same timing and pattern
of transfer for lease and non-lease components and 2) if the lease component, if accounted for separately, would be classified as an operating lease, the
Company has elected to not separate non-lease components from lease components.
Major Customers and Concentration of Credit Risk

Sales and rental income from Occidental Permian, LTD. ("Oxy") in 2022 and 2021 amounted to 42% and 40% of revenue, respectively. No other
single customer accounted for more than 10% of our revenues in 2022 and 2021. Oxy's accounts receivable balances amounted to 55% and 46% of our
accounts receivable as of December 31, 2022 and 2021, respectively. No other customers amounted to more than 10% of our accounts receivable as of
December 31, 2022 and 2021.

Inventory

Inventory (current and long-term) is valued at the lower of cost and net realizable value. The cost of inventories is determined by the weighted
average method. We regularly review inventory quantities on hand and record a provision for excess and obsolete inventory based primarily on current and
anticipated customer demand and production requirements. The Company assesses anticipated customer demand based on current and upcoming capital
expenditure budgets of its major customers as well as other significant companies in the industry, along with oil and natural gas price forecasts and other
factors  affecting  the  industry.  In  addition,  our  long-term  inventory  consists  of  raw  materials  and  replacement  parts  that  remain  viable  but  which  the
Company does not expect to sell within the next year.

Rental Equipment and Property and Equipment

Rental  equipment  and  property  and  equipment  are  recorded  at  cost  less  accumulated  depreciation,  except  for  work-in-progress  on  new  rental
equipment which is recorded at cost until it’s complete and added to the fleet. Depreciation is computed using the straight-line method over the estimated
useful lives of the assets. Our rental equipment has an estimated useful life between 15 and 25 years, while our property and equipment has an estimate
useful lives which range from 3 to 39 years.  The majority of our property and equipment, including rental equipment, is a direct cost to generating revenue.

We  assess  the  impairment  of  rental  equipment  and  property  and  equipment  whenever  events  or  changes  in  circumstances  indicate  that  the  net
recorded amount may not be recoverable. The following factors could trigger an impairment review: significant underperformance relative to historical or
projected future cash flows; significant adverse changes in the extent or manner in which asset (or asset group) is being used or its condition, including a
meaningful drop in fleet utilization over the prior four quarters; significant negative industry or company-specific trends or actions, including meaningful
capital expenditure budget reductions by our major customers or other sizable exploration and production or midstream companies, as well as significant
declines  in  oil  and  natural  gas  prices;  legislative  changes  prohibiting  us  from  leasing  our  units  or  flares;  or  poor  general  economic  conditions.  An
impairment loss is recognized if the future undiscounted cash flows associated with the asset (or asset group) and the estimated fair value of the asset are
less than the asset's carrying value.

F - 10

Sales  of  equipment  out  of  the  rental  fleet  are  included  with  sales  revenue  and  cost  of  sales,  while  retirements  of  units  are  shown  a  separate
operating expense. Gains and losses resulting from sales and dispositions of other property and equipment are included with other income. Maintenance
and repairs are charged to cost of rentals as incurred.

Intangibles

At December 31, 2022 and 2021, NGS had intangible assets, which relate to developed technology and a trade name. Developed technology is
amortized on a straight-line basis with a useful life of 20 years, with a weighted average remaining life of approximately four years as of December 31,
2022.  NGS  has  an  intangible  asset  related  to  the  trade  name  of  SCS  which  was  acquired  in  our  acquisition  of  Screw  Compression  Systems  in  January
2005. This asset is not being amortized as it has been deemed to have an indefinite life.

Our policy is to review intangibles that are being amortized for impairment when indicators of impairment are present. In addition, it is our policy
to  review  indefinite-lived  intangible  assets  for  impairment  annually  or  when  indicators  of  impairment  are  present.  We  review  intangibles  through  an
assessment  of  the  estimated  future  cash  flows  related  to  such  assets.    In  the  event  that  assets  are  found  to  be  carried  at  amounts  in  excess  of  estimated
undiscounted  future  cash  flows,  then  the  assets  will  be  adjusted  for  impairment  to  a  level  commensurate  with  a  discounted  cash  flow  analysis  of  the
underlying assets.  

Warranty

When warranted, we accrue amounts for estimated warranty claims based upon current and historical product warranty costs and any other related

information known. There was no warranty reserve as of December 31, 2022 and 2021.

Income Taxes

Deferred  tax  assets  and  liabilities  are  recognized  for  the  future  tax  consequences  attributable  to  temporary  differences  between  the  financial
statement carrying amounts of assets and liabilities and their respective tax bases, and net operating losses and tax credit carry-forwards. Deferred tax assets
and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to
be  recovered  or  settled.  The  effect  on  deferred  tax  assets  and  liabilities  of  a  change  in  tax  rates  is  recognized  in  the  period  that  includes  the  statutory
enactment date. Valuation allowances are established to reduce deferred tax assets when it is more likely than not that some portion or all of the deferred
tax assets will not be realized.

ASC Topic 740 prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax
position taken or expected to be taken in a tax return. In order to record any financial statement benefit, we are required to determine, based on technical
merits of the position, whether it is more likely than not (a likelihood of more than 50 percent) that a tax position will be sustained upon examination,
including resolution of any related appeals or litigation processes. If that step is satisfied, then we must measure the tax position to determine the amount of
benefit to recognize in the financial statements. The tax position is measured at the largest amount of the benefit that is greater than 50 percent likely of
being realized upon ultimate settlement. We have no uncertain tax positions as of December 31, 2022.

Our policy regarding income tax interest and penalties is to expense those items as other expense.

Fair Value Measurement

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market
participants  at  the  measurement  date  under  current  market  conditions.  ASC  Topic  820  established  a  fair  value  hierarchy,  which  requires  an  entity  to
maximize the use of observable inputs when measuring fair value. These inputs are categorized as follows:

Level 1- quoted prices in an active market for identical assets or liabilities;

Level 2- quoted prices in an active market for similar assets or liabilities, inputs other than quoted prices that are observable for similar assets or liabilities,
inputs derived principally from or corroborated by observable market data by correlation or other means; and

Level 3- valuation methodology with unobservable inputs that are significant to the fair value measurement.

F - 11

    
Management believes that the fair value of our cash and cash equivalents, trade receivables, accounts payable and line of credit at December 31,

2022 and 2021 approximate their carrying values due to the short-term nature of the instruments or the use of prevailing market interest rates. 

Segments and Related Information

ASC 280-10-50, “Operating Segments”, define the characteristics of an operating segment as a) being engaged in business activity from which it
may earn revenue and incur expenses, b) being reviewed by the company's chief operating decision maker (CODM) for decisions about resources to be
allocated and assess its performance and c) having discrete financial information. Although we indeed look at our products to analyze the nature of our
revenue, other financial information, such as certain costs and expenses, net income and EBITDA are not captured or analyzed by these categories. Our
CODM does not make resource allocation decisions or access the performance of the business based on these categories, but rather in the aggregate. Based
on this, management believes that it operates in one business segment.

We are engaged in the business of designing and manufacturing compressors and flares. Our compressors and flares are sold and rented to our
customers.  In  addition,  we  provide  service  and  maintenance  on  compressors  in  our  fleet  and  to  third  parties.  These  business  activities  are  similar  in  all
geographic areas. Historically, our manufacturing process has been essentially the same for the entire Company and has been performed in house at our
facilities in Midland, Texas and Tulsa, Oklahoma. Recently, however, we have contracted with third party fabricators to assemble our larger horsepower
natural gas compressors. Our customers primarily consist of entities in the business of producing natural gas. The maintenance and service of our products
is consistent across the entire Company and is performed via an internal fleet of vehicles. The regulatory environment is similar in every jurisdiction in that
the most impacting regulations and practices are the result of federal energy policy. 

Recently Issued Accounting Pronouncements

In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (ASC Topic 326): Measurement of Credit Losses on Financial
Instruments.  The  amendments  to  ASC  Topic  326  require  immediate  recognition  of  estimated  credit  losses  expected  to  occur  over  the  remaining  life  of
many financial assets, including trade receivables. For companies that qualify as smaller reporting companies, the amendments in this update are effective
for  interim  and  annual  periods  beginning  after  January  1,  2023.  We  are  currently  evaluating  the  impact  of  ASU  2016-13  on  our  consolidated  financial
statements and note disclosures.

3.  Inventory

Our  inventory,  net  of  allowance  for  obsolescence  of  $120,000  and  $64,000  at  December  31,  2022  and  2021,  respectively,  consisted  of  the

following:

Raw materials - current
Work-in-process

Inventory - current

Raw materials - long term (net of allowances of $120 and $64, respectively)

Inventory - total

December 31,

2022

2021

(in thousands)

$

$

21,354  $
2,060 
23,414 
1,557 
24,971  $

17,528 
1,801 
19,329 
1,582 
20,911 

Our long-term inventory consists of raw materials that remain viable but which the Company does not expect to sell within the next year.

Inventory Allowance

We routinely review our inventory allowance balance to account for slow moving or obsolete inventory costs that may not be recoverable in the

future.

F - 12

 
 
A summary of our inventory allowance is as follows:

Beginning balance
Accruals
Write-offs
Ending balance

4.  Rental Equipment, Property and Equipment

Rental Equipment

Year Ended December 31,

2022

2021

(in thousands)

64 
83 
(27)
120 

$

$

221 
208 
(365)
64 

$

$

Our rental equipment and associated accumulated depreciation as of December 31, 2022 and 2021, respectively, consisted of the following:

Compressor units
Work-in-progress
Rental equipment
Accumulated depreciation

Rental equipment, net of accumulated depreciation

2022

December 31,

(in thousands)

2021

$

$

387,145  $
37,034 
424,179 
(177,729)
246,450  $

374,336 
5,212 
379,548 
(172,563)
206,985 

Our  rental  equipment  has  an  estimated  useful  life  between  15  and  25  years.  Depreciation  expense  for  rental  equipment  was  $21.9  million  and
$22.9 million for the years ended December 31, 2022 and 2021, respectively. During the year ended December 31, 2022 we added 45 units to our rental
fleet.

Retirement of Rental Equipment

Company management routinely reviews its inventory of rental equipment for retirement or obsolescence. During 2022, management reviewed the
rental fleet to determine which units were not of the type, configuration, make or model that our customers are demanding or that were not cost efficient to
refurbish, maintain and/or operate. As a result of this review, we determined 124 units should be retired from our rental fleet. Accordingly, we recorded a
$0.2 million loss on retirement of rental equipment during the year ended December 31, 2022.

During our review of our rental compressor units in 2021, we determined 263 units should be retired from our rental fleet. We recorded a $3.1

million loss on retirement of rental equipment.

F - 13

 
Property and Equipment

Property and equipment consists of the following at December 31, 2022 and 2021:

Land
Building
Leasehold improvements
Office equipment and furniture
Software
Machinery and equipment
Vehicles
Work-in-progress

Total

Less accumulated depreciation

Total

Useful Lives
(Years)

December 31,

2022

2021

—
39
39
5
5
7
3

$

$

($ in thousands)
1,680  $

19,166 
1,218 
2,016 
573 
4,052 
9,858 
594
39,157 
(16,981)
22,176  $

1,680 
18,977 
1,197 
2,016 
573 
3,874 
8,295 
— 
36,612 
(15,784)
20,828 

Depreciation expense for property and equipment was $2.1 million and $2.4 million for the year ended December 31, 2022 and 2021, respectively.

Depreciation Expense by Product Line

The following table depicts annual depreciation expense associated with each product line as well as our corporate activities at December 31, 2022

and 2021:

Rentals
Sales
Service & Maintenance
Corporate

Total

5.  Rental Activity

2022

December 31,

(in thousands)

2021

$

$

23,243  $
275 
33 
440 
23,991  $

24,423 
281 
49 
476 
25,229 

We rent natural gas compressor packages to entities in the petroleum industry.  These rental arrangements are classified as operating leases and

generally have original terms of six months to sixty months and continue on a month-to-month basis thereafter. 

F - 14

 
 
Future minimum rent payments for arrangements not on a month-to-month basis at December 31, 2022 are as follows:

Years Ending December 31,
2023
2024
2025
2026
2027
Thereafter

Total

(in thousands)
$32,494
19,098
16,682
7,835
3,303
—
$79,412

6. Leases

The Company determines if an arrangement is a lease at inception by assessing whether it conveys the right to control the use of an identified asset
for a period of time in exchange for consideration. The Company’s leases are primarily related to property leases for its field offices. The Company's leases
have remaining lease terms of one to eight years. Renewal and termination options are included in the lease term when it is reasonably certain that the
Company will exercise the option.

The Company's lease agreements do not contain any contingent rental payments, material residual guarantees or material restrictive covenants.

Right of use assets and lease liabilities are recognized at the lease commencement date based on the present value of lease payments over the lease
term. As substantially all of the Company's leases do not provide an implicit rate, the Company uses its incremental borrowing rate, which is based on a
fully collateralized loan over the lease term, to determine the present value of lease payments. The Company has no finance leases. The following table
reflects the amounts related to leases that are recorded on our consolidated balance sheets as of December 31, 2022 and 2021:

Classification on Consolidated
Balance Sheets

December 31,

2022

2021

Operating lease assets

Right of use assets-operating leases

Current lease liabilities
Noncurrent lease liabilities

Total lease liabilities

Weighted average remaining lease term in years
Implicit Rate

Current operating leases
Long-term operating leases

$

$

$

($ in thousands)
349 

$

155 
194 
349 

$

$

4.5
5.2 %

285 

68 
217 
285 

6.6
3.4 %

Operating lease costs are recognized on a straight-line basis over the lease term. Total operating lease costs for the year ended December 31, 2022

was approximately $384,000.

Cash paid for amounts included in the measurement of lease liabilities

Operating lease cost 

(1) (2)

December 31,

2022

2021

(in thousands)

$

384  $

556 

(1)    Lease costs are classified on the Consolidated Statements of Operations in cost of sales, cost of compressors and selling, general and administrative
expenses.

F - 15

(2)     Includes costs of $207,000 for leases with terms of 12 months or less and $177,000 for leases with terms greater than 12 months for the year ended
December 31, 2022. Includes costs of $346,000 for leases with terms of 12 months or less and $210,000 for leases with terms greater than 12 months for
the year ended December 31, 2021.

The following table shows the future maturities of lease liabilities:

Years Ending December 31,

2023
2024
2025
2026
2027
Thereafter

Total lease payments

Less: Imputed interest

Total

Lease Liabilities
(in thousands)

167 
41 
41 
40 
39 
54 
382 
(33)
349 

$

$

Rent expense under such leases was $177,000 and $210,000 for the years ended December 31, 2022 and 2021, respectively.

7.  Intangibles

At  December  31,  2022  and  2021,  the  Company  had  intangible  assets,  which  relate  to  developed  technology  and  a  trade  name.  Amortization
expense recognized in each of the years ending December 31, 2022 and 2021 was $125,000. Estimated amortization expense for the years 2023-2025 is
approximately $125,000 per year. The Company has an intangible asset with a gross carrying value of $654,000 at December 31, 2022 related to the trade
name  of  SCS  which  was  acquired  in  our  acquisition  of  Screw  Compression  Systems  in  January  2005.   This  asset  is  not  being  amortized  as  it  has  been
deemed to have an indefinite life.

The following table represents the identified intangible assets by major asset class (in thousands):

December 31, 2022

December 31, 2021

Useful Life
(years)
20
Indefinite

Gross
Carrying
Value

$

$

2,505  $
654 
3,159  $

Accumulated
Amortization

Net Book
Value

Gross
Carrying
Value

Accumulated
Amortization

Net Book
Value

2,259  $
— 
2,259  $

246 
654 
900 

$

$

2,505  $
654 
3,159  $

2,134  $
— 
2,134  $

371 
654 
1,025 

Developed Technology
Trade Name

Total

Our policy is to review intangibles that are being amortized for impairment when indicators of impairment are present. In  addition,  it  is  our
policy to review indefinite-lived intangible assets for impairment annually or when indicators of impairment are present. We review intangibles through an
assessment  of  the  estimated  future  cash  flows  related  to  such  assets.    In  the  event  that  assets  are  found  to  be  carried  at  amounts  in  excess  of  estimated
undiscounted  future  cash  flows,  then  the  assets  will  be  adjusted  for  impairment  to  a  level  commensurate  with  a  discounted  cash  flow  analysis  of  the
underlying assets.  Based upon our analysis, we experienced no impairment of intangible assets during the years ended December 31, 2022 or 2021.

F - 16

 
8. Credit Facility

Previous Credit Agreement

We  had  a  senior  secured  revolving  credit  agreement  (the  "Previous  Credit  Agreement")  with  JP  Morgan  Chase  Bank,  N.A  (the  "Lender")  that

matured on March 31, 2021. The Previous Credit Agreement had an aggregate commitment of $30 million, subject to collateral availability.

New Credit Agreement

On  May  11,  2021,  we  entered  into  a  five  year  senior  secured  revolving  credit  agreement  ("New  Credit  Agreement")  with  Texas  Capital  Bank,
National Association (the "Lender") with an initial commitment of $20 million and an accordion feature that would increase the maximum commitment to
$30  million,  subject  to  collateral  availability.  On  December  12,  2022,  we  entered  into  a  First  Amendment  to  the  New  Credit  Agreement  (the  "First
Amendment") to increase the maximum commitment to $30 million. We also have a right to request from the Lender, on an uncommitted basis, an increase
of  up  to  $30  million  on  the  aggregate  commitment;  provided,  however,  the  aggregate  commitment  amount  is  not  permitted  to  exceed  $50  million.  The
maturity date of the New Credit Agreement is May 11, 2026. The obligations under the New Credit Agreement are secured by a first priority lien on a
variety of our assets, including inventory and accounts receivable as well as a variable number of our leased compressor equipment. As of December 31,
2022, we were in compliance with all financial covenants in our New Credit Agreement. At December 31, 2022, we had $25.0 million outstanding under
the New Credit Agreement with a weighted average interest rate of 7.32%. At December 31, 2022, we had $5 million of availability under the New Credit
Agreement.

Amended and Restated Credit Agreement

On February 28, 2023, we entered into a five-year senior secured revolving credit agreement (“Amended and Restated Credit Agreement”) with

Texas Capital Bank, as administrative agent (the “Lender”), TCBI Securities, Inc., as joint lead arranger and sole book runner and Bank of America, N.A.,
as joint lead arranger, with an initial commitment of $175 million as of the closing date. Subject to collateral availability, we also have a right to request
from the Lender, on an uncommitted basis, an increase of up to $125 million on the aggregate commitment; provided, however, the aggregate commitment
amount is not permitted to exceed $300 million. The maturity date of the Amended and Restated Credit Agreement is February 28, 2028. The obligations
under the Amended and Restated Credit Agreement are secured by a first priority lien on a variety of our assets, including inventory and accounts
receivable as well as a variable number of our leased compressor equip.

Borrowing Base. At any time before the maturity of the Amended and Restated Credit Agreement, we may draw, repay and re-borrow amounts
available under the borrowing base up to the maximum aggregate availability discussed above. Generally, the borrowing base equals the sum of (a) 85% of
eligible accounts receivable owed to the Company, plus (b) 50% of the eligible inventory, valued at the lower of cost or market value at such time, subject
to a cap of this component not to exceed $2.5 million, plus (c) the lesser of (i) 95% of the net book value of the compressors that the Lender has determined
are eligible for the extension of credit, valued at the lower of cost or market value with depreciation not to exceed 25 years, at such time and (ii) 80% of the
net liquidation value percentage of the net book value of the eligible compressors that the Lender has determined are eligible for the extension of credit,
valued at the lower of cost or market value with depreciation not to exceed 25 years, at such time, plus (d) 80% of the net book value, valued at the lower of
cost (excluding any costs for capitalized interest or other noncash capitalized costs) or market of the eligible new compressor fleet, minus (e) any required
availability reserves determined by the Lender in its sole discretion. The Lender may adjust the borrowing base components if material deviations in the
collateral are discovered in future audits of the collateral.

Interest and Fees. Under the terms of the Amended and Restated Credit Agreement, we have the option of selecting the applicable variable rate for
each  revolving  loan,  or  portion  thereof,  of  either  (a)  the  Base  Rate  (as  defined  below)  plus  the  Applicable  Margin,  or  (b)  in  the  case  of  a  Term  SOFR
(“Secured Overnight Financing Rate”) Loan, the Adjusted Term SOFR rate plus the Applicable Margin. "Base Rate" means, for any day, a rate of interest
per annum equal to the highest of (a) the prime rate for such day; (b) the sum of the federal funds rate for such day plus 0.50%; and (c) the Adjusted Term
SOFR for such day plus 1.00%. The Applicable Margin is determined based upon the leverage ratio as set forth in the most recent compliance certificate
received by the Lender for each fiscal quarter from time to time pursuant to the Amended and Restated Credit Agreement. Depending on the leverage ratio,
the Applicable Margin can be 2.00% to 2.75% for Base Rate Loans (as defined in the Amended and Restated Credit Agreement) and 3% to 3.75% for Term
SOFR Loans and for requested letters of credit. In addition, we are required to pay a monthly commitment fee on the daily average unused amount of the
commitment while the Amended and Restated Credit Agreement is in effect at an annual rate equal to 0.50% of the unused commitment amount. Accrued
interest is payable monthly on outstanding principal amounts and unused commitment fee, provided that accrued interest on Term SOFR Loans is payable
at the end of each interest period, but in no event less frequently than quarterly.

F - 17

Covenants. The Amended and Restated Credit Agreement contains customary representations and warranties, as well as covenants which, among
other things, condition or limit our ability to incur additional indebtedness and liens; enter into transactions with affiliates; make acquisitions in excess of
certain amounts; pay dividends; redeem or repurchase capital stock or senior notes; make investments or loans; make negative pledges; consolidate, merge
or effect asset sales; or change the nature of our business. In addition, we are subject to certain financial covenants in the Amended and Restated Credit
Agreement that require us to maintain (i) a leverage ratio, as defined, lesser than or equal to 3.50 to 1.00 as of the last day of each fiscal quarter ending on
or prior to December 31, 2024 and 3.25 to 1.00 for the fiscal quarter ending March 31, 2025 and for each fiscal quarter thereafter and (ii) a fixed charge
coverage ratio greater than or equal to 1.25 to 1.00 as of the last day of each fiscal quarter.

Events of Default and Acceleration. The Amended and Restated Credit Agreement contains customary events of default for credit facilities of this
size and type, and includes, without limitation, payment defaults; defaults in performance of covenants or other agreements contained in the Amended and
Restated  Credit  Agreement  and  the  other  transaction  documents;  inaccuracies  in  representations  and  warranties;  certain  defaults,  termination  events  or
similar events; certain defaults with respect to any other Company indebtedness in excess of $1.0 million; certain bankruptcy or insolvency events; the
rendering of certain judgments in excess of $1 million; certain ERISA events; certain change in control events and the defectiveness of any liens under the
secured revolving credit agreement. Obligations outstanding under the Amended and Restated Credit Agreement may be accelerated upon the occurrence
of an event of default.

9.  Income Taxes

The (provision for) benefit from income taxes for the years ended December 31, 2022 and 2021, consists of the following (in thousands):

2022

2021

Current (expense) benefit

Federal benefit
State (expense) benefit

Total current (expense) benefit

Deferred (expense) benefit:
Federal (expense) benefit
State (expense) benefit

Total deferred (expense) benefit

Total (expense) benefit

$

$

—  $
(17)
(17)

(857)
346 
(511)
(528) $

The effective tax rate for the years ended December 31, 2022 and 2021, differs from the statutory rate as follows:

Statutory rate
State and local taxes
Stock based compensation
Nondeductible compensation
Other

Effective rate

2022

2021

21.0 %
812.2 %
(58.5)%
(1846.3)%
(217.1)%
(1288.7)%

— 
1 
1 

1,991 
611 
2,602 
2,603 

21.0 %
5.2 %
(0.7)%
(3.6)%
0.2 %
22.1 %

On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act ("CARES Act") was enacted in response to the economic impact
caused  by  the  COVID-19  pandemic.  The  CARES  Act,  among  other  things,  permits  federal  income  tax  net  operating  loss  ("NOL")  carryovers  and
carrybacks to offset 100% of taxable income for taxable years beginning before 2021. In addition, the CARES Act allows NOLs incurred in 2018, 2019,
and  2020  to  be  carried  back  to  each  of  the  five  preceding  taxable  years  to  generate  a  refund  of  previously  paid  federal  income  taxes.  The  Company
generated significant NOLs during 2018 and 2019 and filed carryback claims for these losses to the preceding five years. Accordingly, as of March 31,
2020, the Company recorded a federal income tax receivable of $15.0 million and an increase to its deferred tax liability of $10.1 million on its condensed
balance sheet. During the third quarter of 2020, the Company received refunds corresponding to the 2018 NOL carryback, leaving a balance in the federal
income tax receivable of $11.5 million at December 31, 2022.

F - 18

 
 
 
 
 
 
In conjunction with the $11.5 million income tax refund claim, on March 8, 2023, the Company received a notice from the Internal Revenue

Service that its 2015, 2016, 2017 and 2019 income tax returns were selected for examination.

The income tax effects of temporary differences that give rise to significant portions of deferred income tax assets and (liabilities) as of December

31, 2022 and 2021, are as follows (in thousands):

Deferred income tax assets:
Net operating loss
Research and development credits
Stock compensation
Deferred compensation
Other

Total deferred income tax assets

Deferred income tax liabilities:
Property and equipment
Goodwill and other intangible assets
Total deferred income tax liabilities

Net deferred income tax liabilities

2022

2021

$

$

6,391  $
1,338 
121 
617 
354 
8,821 

(48,427)
(192)
(48,619)
(39,798) $

5,355 
1,363 
114 
632 
515 
7,979 

(47,044)
(223)
(47,267)
(39,288)

As of December 31, 2022, the Company had NOL carryforwards for federal income tax purposes of $25.4 million, which may be carried forward
indefinitely and can offset up to 80% of future taxable income in any given year. Future changes in ownership, as defined by Section 382 of the Internal
Revenue  Code  ("IRC"),  could  limit  the  amount  of  NOL  carryforwards  used  in  any  one  year.  In  general,  under  Section  382  and  383  of  the  IRC,  a
corporation that undergoes an “ownership change” is subject to limitations on its ability to utilize its pre-change NOLs and certain tax credits, to offset
future taxable income and tax. In general, an ownership change occurs if the aggregate stock ownership of certain stockholders changes by more than 50
percentage points over such stockholders’ lowest percentage of ownership during the testing period (generally three years).

We account for uncertain tax positions in accordance with guidance in FASB ASC 740, which prescribes the minimum recognition threshold a tax
position  taken  or  expected  to  be  taken  in  a  tax  return  is  required  to  meet  before  being  recognized  in  the  financial  statements.  The  Company  assessed
whether it had any uncertain tax positions related to open tax years and concluded there were none. Accordingly, no reserve for uncertain tax positions has
been recorded as of December 31, 2022 and 2021.

Our policy regarding income tax interest and penalties is to expense those items as incurred. During the years ended December 31, 2022 and 2021,

there were no significant income tax interest or penalty items in the statement of operations.

We file income tax returns in the U.S. federal jurisdiction and various state jurisdictions. With few exceptions, we are no longer subject to U.S.

federal or state income tax examination by tax authorities for years before 2015.

10. Deferred Compensation Plans

Effective  January  1,  2016,  the  Company  established  a  non-qualified  deferred  compensation  plan  for  executive  officers,  directors  and  certain
eligible  employees.  The  assets  of  the  deferred  compensation  plan  are  held  in  a  rabbi  trust  and  are  subject  to  additional  risk  of  loss  in  the  event  of
bankruptcy or insolvency of the Company. The plan allows for deferral up to 90% of a participant’s base salary, bonus, commissions, director fees and
restricted stock awards. A Company owned life insurance policy held in a rabbi trust is utilized as a source of funding for the plan. The cash surrender
value of the life insurance policy is $2.4 million and $2.5 million as of December 31, 2022 and 2021, respectively, with a gain/(loss) related to the policy of
$(389,000)  and  $298,000  reported  in  other  income  in  our  consolidated  statement  of  operations  for  the  year  ended  December  31,  2022  and  2021,
respectively.

For deferrals of base salary, bonus, commissions and director fees, settlement payments are made to participants in cash, either in a lump sum or in
periodic installments. The deferred obligation to pay the deferred compensation and the deferred director fees is adjusted to reflect the positive or negative
performance of investment measurement options selected by each participant and was $2.8 million and $2.8 million as of December 31, 2022 and 2021,
respectively. The deferred obligation is included in other long-term liabilities in the consolidated balance sheets.

F - 19

 
 
 
 
 
For deferrals of restricted stock units, the plan does not allow for diversification, therefore, distributions are paid in shares of our common stock
and the obligation is carried at grant value. As of December 31, 2022 and 2021, respectively, we have 3,138 and 17,248 unvested restricted stock units
being deferred. As of December 31, 2022 and 2021, respectively we have released and issued 188,562 and 174,452 shares to the deferred compensation
plan with a value of $2.6 million and $2.5 million, respectively.

11.  Stockholders' Equity

Preferred Stock

We have a total of 5.0 million authorized preferred shares which may be issued in series with rights and preferences as designated by the Board

of Directors. As of December 31, 2022 and 2021, there were no issued or outstanding preferred shares.

12. Stock-Based and Other Long-Term Incentive Compensation

Restricted Stock

 On June 20, 2019, at our annual meeting of shareholders, our shareholders approved an Equity Incentive Plan for restricted shares/units, stock
options  and  other  equity  awards.  The  Equity  Incentive  Plan  allows  issuance  up  to  500,000  shares  of  common  stock.  On  June  16,  2022,  at  our  annual
meeting of shareholders, our shareholders approved an amendment to the Equity Incentive Plan to increase the number of shares available for issuance
under the plan by 650,000 shares of common stock. As of December 31, 2022, we had 250,847 shares outstanding under the Equity Incentive Plan that will
vest over the next three years. As of December 31, 2022, 570,473 shares were still available for issuance under the Equity Incentive Plan.

On April 26, 2022, 4,212 shares of restricted common stock were awarded to each of our four independent Board members. The restricted stock
issued to our directors vests in one year from the date of grant. On August 15, 2022, the Compensation Committee awarded 32,040 shares of restricted
common stock to two executive officers that vest ratably over three years, beginning on April 25, 2023. In addition, on August 15, 2022, the Compensation
Committee awarded 60,839 shares of restricted common stock to Mr. Stephen Taylor, our Interim Chief Executive Officer. The restricted shares granted to
Mr. Taylor will vest in full on June 30, 2023.

Compensation expense related to the restricted shares was approximately $1.7 million and $1.7 million for the years ended December 31, 2022
and 2021, respectively. As of December 31, 2022, there was a total of approximately $1.0 million of unrecognized compensation expense related to the
unvested portion of these restricted shares/units.  This expense is expected to be recognized over the next three years.

A summary of all restricted stock activity as of December 31, 2021 and 2022 and changes during the years then ended are presented below.

Outstanding, December 31, 2020

Granted
Vested
Canceled/Forfeited

Outstanding, December 31, 2021

Granted
Vested
Canceled/Forfeited

Outstanding, December 31, 2022

Other Long-Term Incentive Compensation

Number
 of
Shares

Grant Date Fair
Value

Weighted
Average
Remaining
Contractual Life
(years)

Aggregate
Intrinsic
Value
(in thousands)

258,101  $
156,339  $
(134,788) $
(3,333)
276,319  $
126,662  $
(152,134) $
—  $
250,847  $

12.87 
8.99 
14.94 
12.26 
9.67 
10.21 
10.99 
— 

9.14 

8.61 $
—  $
—  $
— 
1.77 $
—  $
—  $
—  $

1.42 $

2,447 
1,406 
1,258 
31 
2,893 
1,294 
1,778 
— 

2,681 

F - 20

 
 
 
 
On April 28, 2020, the Compensation Committee issued a long-term incentive award of $1.1 million to an executive officer that vests in equal,
annual  tranches  over  three  years.  At  the  time  of  vesting,  each  tranche  will  be  payable  in  cash  or  common  stock  at  the  discretion  of  the  Compensation
Committee.  On  March  18,  2021,  the  Compensation  Committee  issued  a  long-term  incentive  award  of  $1.0  million  to  an  executive  officer  that  vests  in
equal, annual tranches over three years. On March 18, 2021, we issued a $50,000 award to each of our three independent Board members. On April 1,
2021, we issued a $50,000 award to a newly appointed independent Board member. These awards vest one year from the date of grant and are payable in
cash upon vesting. On April 26, 2022, we issued a $50,000 award to each of our four independent Board members. These awards vest one year from the
date of grant and are payable in cash upon vesting. The Company accounts for these other long-term incentive awards as liabilities under accrued liabilities
on our condensed consolidated balance sheet. The vesting of these awards is subject to acceleration upon certain events, such as (i) death or disability of the
recipient,  (ii)  certain  circumstances  in  connection  with  a  change  of  control  of  the  Company,  (iii)  for  executive  officers,  termination  without  cause  (as
defined in the agreement), and (iv) for executive officers, resignation for good reason (as defined). Total compensation expense related to these other long-
term incentive awards was approximately $1.0 million for the year ended December 31, 2022. As of December 31, 2022 there was a total of $0.7 million of
unrecognized compensation expense related to these other long-term incentive awards which is expected to be recognized over the next year.

Stock Option Plan

Our  Stock  Option  Plan,  which  is  stockholder  approved,  permits  the  granting  of  stock  options  to  its  employees  for  up  to  1.0  million  shares  of
common  stock.  We  believe  that  such  awards  align  the  interests  of  our  employees  with  our  stockholders.  Option  awards  are  generally  granted  with  an
exercise  price  equal  to  the  market  price  of  our  stock  at  the  date  of  grant;  those  option  awards  generally  vest  in  equal  increments  over  three  years  of
continuous service and have ten-year contractual terms.  Certain option and share awards provide for accelerated vesting if there is a change in control of
the  Company  (as  defined  in  the  Stock  Option  Plan).    The  last  date  that  grants  can  be  made  under  the  Stock  Option  Plan  is  February  28,  2026.  As  of
December 31, 2022, 344,253 shares were still available to be granted under the Stock Option Plan.

The fair value of each option award is estimated on the date of grant using the Black-Scholes option valuation model that uses the assumptions
noted in the following table.  The risk-free rate for periods within the contractual life of the option is based on the U.S. Treasury yield curve in effect at the
time of grant.  The expected life of options granted is based on the vesting period and historical exercise and post-vesting employment termination behavior
for similar grants.  We use historical data to estimate option exercise and employee termination within the valuation model; separate groups of employees
that have similar historical exercise behavior are considered separately for valuation purposes.
Weighted average Black -Scholes fair value assumption during the year ended December 31, are as follows:
Risk free rate
Expected life
Expected volatility
Expected dividend yield

2.99 %
2.67
54.5 %
— %

2022

During the year ended December 31, 2022, 215,000 stock option grants were made.

F - 21

A summary of all option activity as of December 31, 2021 and 2022 and changes during the years then ended are presented below:

Outstanding, December 31, 2020

Granted
Exercised
Canceled/Forfeited
Expired

Outstanding, December 31, 2021

Granted
Exercised
Canceled/Forfeited
Expired

Outstanding, December 31, 2022

Exercisable, December 31, 2022

Number
 of
Shares

Weighted
Average
Exercise Price

Weighted
Average
Remaining
Contractual Life
(years)

Aggregate
Intrinsic
Value
(in thousands)

161,334  $
55,500  $
— 
—  $
(16,000) $
200,834  $
215,000  $
— 

(200,750) $
(13,500) $
201,584  $
160,084  $

24.48 
10.58 
— 
— 
17.81 
21.17 
16.07 
— 
(18.09)
13.29 

19.32 

21.48 

3.48 $
— 
— 
—  $
— 
4.83
— 
— 
— 
— 

3.90 $

2.55 $

— 
— 
— 
— 
— 
— 
— 
— 
— 
— 

— 

— 

The weighted average grant date fair value of options granted during 2022 was $4.24 per option. We had 55,500 grants of stock options in 2021

with a weighted average grant date fair value of $5.15. There were no option exercises in either 2022 or 2021.

The following table summarizes information about our stock options outstanding at December 31, 2022:

Range of Exercise Prices
$0.01-$18.00
$18.01-$22.00
$22.01-$26.00
$26.01-$30.00
$30.01-$34.00

Options Outstanding
Weighted
Average
Remaining
Contractual
Life (years)

Weighted
Average
Exercise
Price

5.58
0.22
2.28
4.13
1.22

3.90

$

$

13.30 
18.75 
22.90 
28.15 
30.41 

19.32 

Shares

106,000 
13,000 
29,667 
20,750 
32,167 
201,584 

Options Exercisable

Weighted
Average
Exercise
Price

14.78 
18.75 
22.90 
28.15 
30.41 

21.48 

Shares

64,500 
13,000 
29,667 
20,750 
32,167 
160,084 

$
$
$
$
$

$

The summary of the status of our unvested stock options as of December 31, 2022 and changes during the year then ended is presented below.
Weighted
Average
Grant Date Fair
Value

Shares

Unvested stock options:
Unvested at December 31, 2021

Granted
Vested
Canceled/Forfeited

Unvested at December 31, 2022

F - 22

55,500  $
215,000  $
(69,500)
(159,500)

41,500  $

10.58 
16.07 
14.48 
16.17 

11.01 

 
 
 
 
 
 
 
 
 
 
We  recognized  stock  compensation  expense  from  stock  options  of  $255,000  and  $728  for  the  years  ended  December  31,  2022  and  2021,

respectively. As of December 31, 2022, there was $188,000 of unamortized compensation cost related to unvested stock options.

13. Loss per Share

Basic loss per common share is computed using the weighted average number of common shares outstanding during the period.  Diluted loss per

common share is computed using the weighted average number of common stock and common stock equivalent shares outstanding during the period.  

The following table sets forth the computation of basic and diluted loss per share (in thousands, except per share amounts):

Numerator:
Net loss

Denominator for basic net loss per common share:
Weighted average common shares outstanding

Denominator for diluted net loss per share:

Weighted average common shares outstanding
Dilutive effect of stock options and restricted shares

Diluted weighted average shares

Loss per common share:

Basic
Diluted

Year Ended December 31,

2022

2021

$

(569) $

(9,183)

12,305 

13,100 

12,305 
— 
12,305 

$
$

(0.05) $
(0.05) $

13,100 
— 
13,100 

(0.70)
(0.70)

In the year ended December 31, 2022, 250,847 restricted stock/units and 201,584 stock options were not included in the computation of dilutive
income per share, due to their anti-dilutive effect. In the year ended December 31, 2021, 276,319 restricted stock/units and 200,834 stock options were not
included in the computation of diluted loss per share due to their antidilutive effect.

14. Accrued Liabilities

Accrued liabilities consists of the following as of December 31, 2022 and 2021 (in thousands):

Accrued purchases
Accrued compensation
Accrued other

Total

15. Commitments and Contingencies

Legal Proceedings

2022

2021

$

$

$

17,763 
4,472
1,491

9,667 
2,369
2,067

23,726 

$

14,103 

From time to time, we are a party to various legal proceedings in the ordinary course of our business. While management is unable to predict the
ultimate outcome of these actions, it believes that any ultimate liability arising from these actions will not have a material effect on our financial position,
results of operations or cash flow.  We are not currently a party to any bankruptcy, receivership, reorganization, adjustment or similar proceeding, and we
are not aware of any other threatened litigation.

F - 23

 
 
 
 
 
 
 
 
 
 
16.  Related Party

During the year ended December 31, 2022, we sold $0.6 million of compressor components to N-G Joint Venture, LLC our 50% joint venture. As

of December 31, 2022, we had accounts receivable of $6,000 with N-G.

17.  Subsequent Events

On February 28, 2023, we entered into an Amended and Restated Credit Agreement. See Note 8.

F - 24

Exhibit 21.1

Subsidiaries of the Registrant

Listed below are subsidiaries of Natural Gas Services Group, Inc. with their jurisdiction of organization shown in parenthesis:

NGSG Properties, LLC (Colorado)
Rabbi Trust associated with the Company's Non-qualified Deferred Compensation Plan (Texas)

                                                                          
Consent of Independent Registered Public Accounting Firm

Exhibit 23.1

Natural Gas Services Group, Inc.
Midland, Texas

We consent to the incorporation by reference in the Registration Statements (Form S-3 No. 333-261091 and Form S-8 Nos. 333-232269, 333-
212411, 333-160063, 333-147311, and 333-110954) of our report dated March 31, 2023, relating to the consolidated financial statements of
Natural Gas Services Group, Inc. which report expresses an unqualified opinion, appearing in this Annual Report (Form 10-K) for the year
ended December 31, 2022.

/s/ Ham, Langston & Brezina L.L.P

Houston, Texas
March 31, 2023

Consent of Independent Registered Public Accounting Firm

Exhibit 23.2

Natural Gas Services Group, Inc.
Midland, Texas

We consent to the incorporation by reference in the Registration Statements on Form S-3 No. (333-261091) and Form S-8 (No. 333-232269,
333-212411, 333-160063, 333-147311, 333-110954 and 333-266100) of Natural Gas Services Group, Inc. (the Company), of our our report
dated  March  31,  2023,  relating  to  the  consolidated  financial  statements  of  the  Company  as  of  and  for  the  year  ended  December  31,  2021
(which report expresses an unqualified opinion), appearing in this Annual Report (Form 10-K) for the year ended December 31, 2022.

/s/ Moss Adams LLP

Dallas, Texas
March 31, 2023

Exhibit 31.1

I, Stephen C. Taylor, certify that:

1.

I have reviewed this Annual Report on Form 10-K of Natural Gas Services Group, Inc;

Certifications

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the
statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this
report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the

financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-
15(f) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to
ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this report is being prepared;

b. Designed  such  internal  control  over  financial  reporting,  or  caused  such  internal  control  over  financial  reporting  to  be  designed  under  our
supervision,  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;

c. Evaluated  the  effectiveness  of  the  registrant's  disclosure  controls  and  procedures  and  presented  in  this  report  our  conclusions  about  the

effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent
fiscal  quarter  (the  registrant's  fourth  fiscal  quarter  in  the  case  of  an  annual  report)  that  has  materially  affected,  or  is  reasonably  likely  to
materially affect, the registrant's internal control over financial reporting; and

1. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to

the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a. All  significant  deficiencies  and  material  weaknesses  in  the  design  or  operation  of  internal  control  over  financial  reporting  which  are

reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b. Any  fraud,  whether  or  not  material,  that  involves  management  or  other  employees  who  have  a  significant  role  in  the  registrant's  internal

control over financial reporting.

Dated: March 31, 2023

Natural Gas Services Group, Inc.

By: /s/ Stephen C. Taylor
Stephen C. Taylor,
Interim President, CEO and Chairman of the Board of Directors
(Principal Executive Officer)

 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 31.2

I, James D. Faircloth, certify that:

1.    I have reviewed this Annual Report on Form 10-K of Natural Gas Services Group, Inc;

Certifications

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the
statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the
financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.       The  registrant's  other  certifying  officer(s)  and  I  are  responsible  for  establishing  and  maintaining  disclosure  controls  and  procedures  (as  defined  in
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f) for
the registrant and have:

(a)    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision,
to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities,
particularly during the period in which this report is being prepared;

(b)    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our
supervision, 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;

(c)        Evaluated  the  effectiveness  of  the  registrant's  disclosure  controls  and  procedures  and  presented  in  this  report  our  conclusions  about  the

effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)    Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent
fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect,
the registrant's internal control over financial reporting; and

5.    The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the
registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a)        All  significant  deficiencies  and  material  weaknesses  in  the  design  or  operation  of  internal  control  over  financial  reporting  which  are

reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal

control over financial reporting.

Dated: March 31, 2023

Natural Gas Services Group, Inc.

By: /s/ James D. Faircloth
James D. Faircloth
Interim Vice President and Chief Financial Officer
(Principal Accounting Officer)

 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. §1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Natural Gas Services Group, Inc. (the “Company”) on Form 10-K for the period ended December 31, 2022 as
filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Stephen C. Taylor, Interim Chief Executive Officer of the
Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.    The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2.    The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: March 31, 2023

Natural Gas Services Group, Inc.

By: /s/ Stephen C. Taylor
Stephen C. Taylor,
Interim President, CEO and Chairman of the Board of Directors
(Principal Executive Officer)

The foregoing certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. § 1350, and is not being filed for purposes of Section
18 of the Securities Exchange Act of 1934, as amended, and is not to be incorporated by reference into any filing of the Company, whether made before or
after the date hereof, regardless of any general incorporation language in such filing.

 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. §1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Natural Gas Services Group, Inc. (the “Company”) on Form 10-K for the period ended December 31, 2022 as
filed  with  the  Securities  and  Exchange  Commission  on  the  date  hereof  (the  “Report”),  I,  James  D.  Faircloth,  Interim  Chief  Financial  Officer  of  the
Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.    The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2.    The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: March 31, 2023

Natural Gas Services Group, Inc.

By: /s/ James D. Faircloth
James D. Faircloth
Interim Vice President and Chief Financial Officer
(Principal Accounting Officer)

The foregoing certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. § 1350, and is not being filed for purposes of Section
18 of the Securities Exchange Act of 1934, as amended, and is not to be incorporated by reference into any filing of the Company, whether made before or
after the date hereof, regardless of any general incorporation language in such filing.