Natural Gas Services Group, Inc.

What they do

NGS rents, designs, installs, services and maintains natural gas engine and electric motor drive compressors for oil and gas production and processing facilities, using equipment sourced from third-party fabricators and OEM suppliers. Its largest rental market is the Permian Basin, which accounted for 78 percent of rental revenues in 2025 and approximately 80 percent in the first half of 2026, with additional operations in the San Juan, Utica/Marcellus, Barnett, Eagle Ford, Anadarko and Antrim areas. Rental contracts generally run 12 to 60 months and are billed monthly in advance, with maintenance included; the company also provides aftermarket call-out and commissioning services on customer-owned equipment.

Revenue drivers

• Compressor rental — The primary source of revenue and gross profit, generated by renting natural gas and electric motor drive compressor units to E&P customers. Rental revenues were 96.2 percent of total revenues in Q2 2026 and 95.6 percent in Q2 2025.
• Permian Basin rental concentration — The Permian Basin generated 78 percent of rental revenues in 2025, with the customer base focused on gas lift for unconventional oil wells on single and multi-well pads.
• Large and medium horsepower units — The company focuses on large and medium horsepower applications for E&P customers; as of the 2026 second quarter, the rented large horsepower fleet totaled 501,000 horsepower and was 99 percent utilized.
• Aftermarket services — Call-out services on customer-owned equipment and commissioning of new units for customers supplement the rental business, though rental revenue dominates the mix.

Recent performance

Second quarter 2026 total revenues were $51.4 million versus $41.4 million in the second quarter of 2025, with rental revenues of $49.4 million compared to $39.6 million. Six-month 2026 revenues reached $99.9 million versus $82.8 million a year earlier. Period-end rented horsepower was 669,919 compared with 498,651, fleet horsepower available was 758,526 compared with 596,322, and horsepower utilization was 88.3 percent compared with 83.6 percent. Full-year 2025 revenue was $172.3 million with net income of $19.9 million and diluted EPS of $1.57.

Strategy

Management describes four consistent growth and value drivers: fleet optimization and pricing, asset utilization, organic growth, and accretive M&A. On June 12, 2026 the company acquired Flatrock Compression Holdings LLC, adding 87,233 rented horsepower for consideration of approximately $119 million, including $108.9 million in cash and 241,803 shares. The cash portion was funded with borrowings under a credit facility that was increased to $500.0 million from $400.0 million in connection with a fifth amendment. The company initiated a $0.10 per share dividend in the third quarter of 2025 and raised it to $0.11 per share for the fourth quarter of 2025 and first quarter of 2026, and is marketing non-essential real estate including its former Midland assembly facility and former headquarters property.

Risks

• Oil and gas price and spending sensitivity — Revenue depends on oil and gas industry expenditures, and when those budgets decline the company's revenue will suffer, with rental contracts often short-term and customers quick to respond to price changes.
• Customer concentration — The company identifies reliance on major customers as a risk factor in its 10-K.
• Geographic concentration in the Permian — The Permian Basin generated 78 percent of 2025 rental revenues and roughly 80 percent in the first half of 2026, concentrating exposure to conditions in that one basin.
• Debt and financing flexibility — The Flatrock acquisition was funded with credit facility borrowings, and the company cites inability to comply with debt covenants and the decreased financial flexibility associated with debt as risk factors.

Outlook

Management did not provide specific numerical guidance in the provided excerpts. The CEO characterized the second quarter as a record and described NGS as materially larger and more capable than three years ago, with opportunities remaining across the four stated growth and value drivers. The company is integrating Flatrock's people, systems and operations and initiated a redomestication from Colorado to Texas on July 20, 2026.