NGS Q2: Rental fleet lifts revenue, EBITDA; heavy capex drains cash to $0.3M, Oxy concentration risk

Natural Gas Services Group, Inc. (NYSE: NGS) - Q2 2025 snapshot

Quick take:
- Revenue growth driven by rental fleet: Total revenue $41,382 (Q2 2025) vs $38,491 (Q2 2024).
- Profitability improving: Net income $5,188 (Q2) and $10,042 (six months); diluted EPS $0.41 (Q2) and $0.80 (six months).
- Heavy capital spending to grow rental fleet drove higher depreciation and cash outflows.

Key facts & statistics (from the 10‑Q)
- Total assets: $525,526; Total liabilities: $259,312; Equity: $266,214 (June 30, 2025).
- Cash and cash equivalents: $325 (down from $2,142 at 12/31/24).
- Trade AR (net): $13,742; Inventory (net): $18,334; Assets held for sale: $2,227.
- Rental equipment, net: $446,952 (up from $415,021).
- Total revenue (six months): $82,765 vs $75,398 LY (↑ $7,367, ~9.8%).
- Rental revenue (six months): $78,490 vs $68,660 LY (↑ $9,830, 14.3%). Rental = ~95% of total revenue.
- Cost of revenues excl. D&A (six months): $34,286; Adjusted gross margin (six months): $48,479 vs $42,115 LY.
- Adjusted EBITDA: $19,665 (Q2) and $38,955 (six months) vs $16,456 and $33,334 LY.
- Depreciation & amortization: $8,969 (Q2) and $17,605 (six months) - up materially YoY due to high‑horsepower fleet additions.
- Interest expense (net): $3,243 (Q2) and $6,413 (six months); weighted‑average interest rate on borrowings ~7.23% (June 30, 2025).
- Long‑term debt (credit facility borrowings): $182,000 outstanding; availability approx. $172.3M under $400M commitment.
- Operating cash flow (six months): $32,263; Capex (rental & equipment purchases): $45,065 (six months).
- Fleet: Rented horsepower 498,651 (period end); fleet horsepower available 596,322; horsepower utilization 83.6% (period end).
- Customer concentration: Occidental Permian (Oxy) = 47% of revenue (six months) and ~50% of accounts receivable (June 30, 2025).

Positive income statement items
- Revenue and margins trending up driven by higher rented horsepower and focus on larger, higher‑margin (>400 HP) units.
- Adjusted gross margin and Adjusted EBITDA both increased YoY (six months Adjusted gross margin $48.5M; Adjusted EBITDA $39.0M).
- Net income grew to $10.0M for six months and EPS improved (diluted $0.80 YTD).
- Management retains ample revolver capacity ($172.3M available) and reports covenant compliance.

Negative income statement / P&L pressure points
- Sales revenue declined sharply: $2,677 (six months) vs $4,773 LY; sales gross margin turned negative (sales adjusted gross margin -$0.25M YTD).
- Depreciation & amortization increased materially (six months $17.6M vs $14.8M LY), pressuring operating margins despite revenue growth.
- Interest and financing costs elevated (six months interest expense $6.4M) as capex and borrowings grew; capitalized interest dropped vs prior year.
- Operating cash conversion strained by heavy fleet investment: investing cash outflow $(44.96M) vs operating cash inflow $32.26M (six months).
- Very low cash balance ($325) at quarter end increases reliance on revolver availability and working capital management.
- High customer concentration risk: Oxy accounts for nearly half of revenue and receivables - a single‑counterparty exposure.

Other noteworthy items / near‑term catalysts & risks
- Company closed Midland fabrication facility, reclassified $2.2M of land/building to assets held for sale and wrote off related inventory allowances (inventory obsolescence down to $2.519M from $5.867M at year‑end).
- April 18, 2025 Fourth Amendment expanded the credit facility to $400M, reduced rates and added flexibility; maturity Feb 28, 2028.
- Subsequent events: Board declared $0.10/share cash dividend (record Aug 8, 2025; pay Aug 22) and approved a $6M share repurchase program (expires Aug 6, 2027).
- Management change: President & COO Brian Tucker transitioning out with target October 31, 2025 (personal reasons disclosed).

Bottom line
NGS is executing a deliberate shift toward a larger, higher‑horsepower rental fleet that is lifting revenue, adjusted gross margin and Adjusted EBITDA. However, profitability is partly offset by higher non‑cash depreciation from new fleet additions, increased interest and heavy capex that have drained cash to $0.3M at quarter end. Watch customer concentration (Oxy ~47% of revenue), revolver availability and working capital trends as the company continues fleet investment and monetizes non‑core assets (Midland sale, asset dispositions).

Data sourced from NGS Form 10‑Q for period ended June 30, 2025 (filed Aug 11, 2025).