The Permian, and What Sixty-Three Billion BoughtNarrow moat

ExxonMobil (XOM) — moat facet

Record volumes, industry-leading execution, and 4.3 per cent on a hundred and eighteen billion dollars of capital.

ExxonMobil's American Upstream produced 2.1 million oil-equivalent barrels a day in 2025, of which the Permian Basin contributed a record 1.6 million — four hundred thousand more than the year before — with a stated target of roughly 2.5 million by 20301. On every operational measure it is going extremely well. The company cites its cube development design, proprietary lightweight proppant and drilling and completion capability as the reasons, and the volumes support the claim2.

United States Upstream: capital in, return out$85.3bn2024 capital$118.1bn2025 capital7.5%2024 return4.3%2025 returnCapital in $bn. Pioneer closed 3 May 2024 for 545m shares worth $63bn plus $5bn of debt.
Thirty-three billion dollars of new capital, and the return on it nearly halved.

The financial measure says something else. United States Upstream employed $118,142 million of capital in 2025 and earned $5,063 million on it: 4.3 per cent, down from 7.5 per cent the year before3. This is the largest single pool of capital in ExxonMobil — thirty-nine per cent of the corporate total — and it earns roughly half the company's cost of capital.

The reason the capital grew so fast is dated. On 3 May 2024 ExxonMobil completed the acquisition of Pioneer Natural Resources, issuing 545 million shares with a fair value of $63 billion and assuming debt with a fair value of $5 billion4. Capital employed in US Upstream went from $85,285 million to $118,142 million in a single year5. From the closing date to the end of 2024 Pioneer contributed $17,008 million of revenue and $1,710 million of earnings6 — a rate of return on sixty-three billion dollars of stock that anybody can compute and which management has not disputed.

Two things can be true here, and both are. The Permian assets are genuinely good: contiguous acreage, long laterals, low lifting costs, and a decade of drilling inventory that ExxonMobil did not have to compete for again. And a return of 4.3 per cent on a hundred and eighteen billion dollars is a bad year in a business where the only thing that matters is the return over the cycle. Which of those dominates depends on the price of oil for the next ten years, and that is not a question about the Permian.

What should happen from here is that returns rise as volumes scale against a capital base that is now fixed. Production is set to grow more than fifty per cent to 2030 on a spending programme the company has said it will not increase7. If that happens, US Upstream returns rise toward the non-US figure and the acquisition looks well timed.

Everything here turns on one line: United States Upstream return on average capital employed. It was 7.5 per cent in 2024 and 4.3 per cent in 20258. Three more years of Permian growth should take it into double digits. If it is still in the low single digits in 2028 with volumes at target, the answer will be that ExxonMobil bought barrels at the top of the market.

Moat trajectory: Narrowing

Operationally this is going extremely well and financially it is not yet. Capital employed rose from $85,285 million to $118,142 million in a year while the return fell from 7.5 per cent to 4.3. Volumes are set to grow more than fifty per cent by 2030 against a capital base that is largely in place, which is the case for patience; the return is the case against it, and it has been the case against it for two years.

The number that tests this moat
Reported
Permian production
More than 1.8 million oil-equivalent barrels a day in Q2 2026, a record

Output keeps setting records toward a target of roughly 2.5 million by 2030. The volumes are not in doubt; the return is, because United States Upstream earned 4.3% on its capital in 2025.

Source: ExxonMobil Holdings Q2 2026 earnings release ↗
⚠ Threats to the moat
⚠ THREAT 01
A Shale Well Pays Back Fast and Stops Fast
Two thirds of the upstream capital goes into the geography where a well gives back most of its oil in two years and then stops.
References
  1. ReportedExxonMobil's American Upstream produced 2.1 million oil-equivalent barrels a day in 2025, of which the Permian Basin contributed a record 1.6 million — four hundred thousand more than the year before — with a stated target of roughly 2.5 million by 2030.
    Exxon Mobil Corporation Form 10-K for FY2025, Management's Discussion and Analysis — Business Results: segment financial results and identified items, the 2025 earnings driver analyses for each segment, and the Upstream highlights covering the Permian, Guyana, LNG and the major project portfolio. — FY2025 · publ. February 2026 · source ↗
  2. ReportedThe company cites its cube development design, proprietary lightweight proppant and drilling and completion capability as the reasons, and the volumes support the claim.
    Exxon Mobil Corporation Form 10-K for FY2025, Management's Discussion and Analysis — Business Results: segment financial results and identified items, the 2025 earnings driver analyses for each segment, and the Upstream highlights covering the Permian, Guyana, LNG and the major project portfolio. — FY2025 · publ. February 2026 · source ↗
  3. ReportedUnited States Upstream employed $118,142 million of capital in 2025 and earned $5,063 million on it: 4.3 per cent, down from 7.5 per cent the year before.
    Exxon Mobil Corporation Form 10-K for FY2025, Business Profile (Financial) — earnings after income taxes, average capital employed, return on average capital employed and cash capital expenditures for each segment and geography, and the corporate total. — FY2025 · publ. February 2026 · source ↗
  4. ReportedOn 3 May 2024 ExxonMobil completed the acquisition of Pioneer Natural Resources, issuing 545 million shares with a fair value of $63 billion and assuming debt with a fair value of $5 billion.
    Exxon Mobil Corporation Form 10-K for FY2025, notes to the consolidated financial statements — Note 3 Disclosures about Segments and Related Information (segment revenue, intersegment revenue, segment income, additions to property plant and equipment, total assets, geographic revenue and the revenue-from-contracts disaggregation), Note 7 Litigation and Other Contingencies, and Note 20 Mergers and Acquisitions covering Pioneer Natural Resources and Denbury. — FY2025 · publ. February 2026 · source ↗
  5. ReportedCapital employed in US Upstream went from $85,285 million to $118,142 million in a single year.
    Exxon Mobil Corporation Form 10-K for FY2025, Business Profile (Financial) — earnings after income taxes, average capital employed, return on average capital employed and cash capital expenditures for each segment and geography, and the corporate total. — FY2025 · publ. February 2026 · source ↗
  6. ReportedFrom the closing date to the end of 2024 Pioneer contributed $17,008 million of revenue and $1,710 million of earnings — a rate of return on sixty-three billion dollars of stock that anybody can compute and which management has not disputed.
    Exxon Mobil Corporation Form 10-K for FY2025, notes to the consolidated financial statements — Note 3 Disclosures about Segments and Related Information (segment revenue, intersegment revenue, segment income, additions to property plant and equipment, total assets, geographic revenue and the revenue-from-contracts disaggregation), Note 7 Litigation and Other Contingencies, and Note 20 Mergers and Acquisitions covering Pioneer Natural Resources and Denbury. — FY2025 · publ. February 2026 · source ↗
  7. ReportedProduction is set to grow more than fifty per cent to 2030 on a spending programme the company has said it will not increase.
    ExxonMobil news release, 'ExxonMobil raises its 2030 Plan' — $25 billion of earnings growth and $35 billion of cash flow growth by 2030 at constant prices and margins, production of 5.5 million oil-equivalent barrels per day about 30% above the next closest international oil company, unit earnings above $15 per barrel, cash capital expenditure of $27-$29 billion in 2026 and $28-$32 billion a year from 2027 to 2030, and approximately $145 billion of cumulative surplus cash flow through 2030 at $65 Brent. — 2026-2030 plan · publ. 9 December 2025 · source ↗
  8. ReportedIt was 7.5 per cent in 2024 and 4.3 per cent in 2025.
    Exxon Mobil Corporation Form 10-K for FY2025, Business Profile (Financial) — earnings after income taxes, average capital employed, return on average capital employed and cash capital expenditures for each segment and geography, and the corporate total. — FY2025 · publ. February 2026 · source ↗
Sources
Generated September 23, 2026