Reserve Replacement: 158 PercentNarrow moat

Chevron (CVX) — moat facet

Chevron replaced 158 percent of its 2025 production, mostly by buying Hess, and its five-year replacement rate is still below 100 percent.

An oil company shrinks every day it does not find or buy more oil, and in 2025 Chevron more than made up for what it produced. Its proved reserves were 10,591 million barrels of oil equivalent at the end of 2025, against 9,804 million a year earlier1, and the one-year reserve replacement ratio was 158 percent2.

Proved reserves (million barrels of oil equivalent)11,06920239,804202410,5912025Chevron Form 10-K FY2025
The Hess purchase refilled most, not all, of the 2024 fall.

The number needs reading carefully, because most of it was bought. In Other Americas alone, 193 million barrels of the additions were purchases attributable to the Hess interests in Guyana's Stabroek block3. Two years earlier Chevron had 11,069 million barrels4; the 2025 figure is still below that. The five-year and ten-year replacement ratios, which smooth out an acquisition, were 91 percent and 95 percent5, just under the level needed to stand still.

Where the barrels are matters as much as how many. Chevron says 43 percent of its proved reserves are in the United States, 15 percent in Australia and 11 percent in Kazakhstan6. The Kazakh share sits in a concession that ends in 2033, which the Tengiz page covers.

Divide the reserves by production and the shelf holds about 7.8 years of output at the 2025 rate of 3,723 thousand barrels a day7. That is not unusual for the industry, but it is the plain arithmetic of an extractive business: every eight years or so, the company has to find or buy another Chevron.

The acquisition also changed the mix. The Hess purchase contributed 261 thousand barrels a day of the 2025 production increase and legacy operations 124 thousand8, so about two-thirds of the new volume, and most of the reserves that came with it, were bought rather than found9.

Reserve replacement is the moat's fuel gauge. A five-year ratio climbing back above 100 percent without another large acquisition would show Chevron can refill the tank with the drill bit; a ratio that only rises in acquisition years would mean the reserves are bought, and priced accordingly.

Moat trajectory: Holding steady

Reserves up 8% in 2025 on the Hess purchase; five-year ratio 91%.

The number that tests this moat
Reported
Proved reserves
10,591 MMBOE (end-2025); 158% one-year replacement

About 7.8 years of production; a five-year ratio below 100% means the shelf is emptying without deals.

Source: Chevron Form 10-K, FY2025 ↗
⚠ Threats to the moat
⚠ THREAT 01
Seven Point Eight Years on the Shelf
At 7.8 years of reserves and a five-year replacement ratio of 91 percent, Chevron has to keep buying oil companies to stay the same size.
References
  1. ReportedIts proved reserves were 10,591 million barrels of oil equivalent at the end of 2025, against 9,804 million a year earlier, and the one-year reserve replacement ratio was 158 percent.
    Chevron Form 10-K for fiscal 2025 - Items 1 and 2: upstream operations, reserves, concessions and employees. — FY2025 · publ. 24 February 2026 · source ↗
  2. ReportedIts proved reserves were 10,591 million barrels of oil equivalent at the end of 2025, against 9,804 million a year earlier, and the one-year reserve replacement ratio was 158 percent.
    Chevron fourth-quarter and full-year 2025 earnings release, Form 8-K exhibit 99.1. — FY2025 · publ. 30 January 2026 · source ↗
  3. ReportedIn Other Americas alone, 193 million barrels of the additions were purchases attributable to the Hess interests in Guyana's Stabroek block.
    Chevron Form 10-K for fiscal 2025 - Note 29 and property tables: the Hess acquisition and property, plant and equipment. — FY2025 · publ. 24 February 2026 · source ↗
  4. ReportedTwo years earlier Chevron had 11,069 million barrels; the 2025 figure is still below that.
    Chevron Form 10-K for fiscal 2025 - Item 7 MD&A: earnings by segment, return on capital employed and financial ratios. — FY2025 · publ. 24 February 2026 · source ↗
  5. ReportedThe five-year and ten-year replacement ratios, which smooth out an acquisition, were 91 percent and 95 percent, just under the level needed to stand still.
    Chevron Form 10-K for fiscal 2025 - Note 29 and property tables: the Hess acquisition and property, plant and equipment. — FY2025 · publ. 24 February 2026 · source ↗
  6. ReportedChevron says 43 percent of its proved reserves are in the United States, 15 percent in Australia and 11 percent in Kazakhstan.
    Chevron Form 10-K for fiscal 2025 - Items 1 and 2: upstream operations, reserves, concessions and employees. — FY2025 · publ. 24 February 2026 · source ↗
  7. Moat Explorer calcDivide the reserves by production and the shelf holds about 7.8 years of output at the 2025 rate of 3,723 thousand barrels a day.
    Moat Explorer calculation from Chevron's reported figures ($ millions unless stated). Segment mix 2025: external sales upstream US 19,608, upstream international 33,844, downstream US 65,331, downstream international 65,545, All Other 104, total 184,432; upstream 19,608 + 33,844 = 53,452, 53,452 / 184,432 = 29.0%; downstream 65,331 + 65,545 = 130,876, 130,876 / 184,432 = 71.0%; upstream US 19,608 / 184,432 = 10.6%; upstream international 33,844 / 184,432 = 18.4%; downstream US 65,331 / 184,432 = 35.4%; downstream international 65,545 / 184,432 = 35.5%. Upstream share of external sales 2015 (4,117 + 15,587) / 129,925 = 15.2%. Intersegment: upstream US 25,910 / 45,518 = 56.9%. Segment earnings 2025: upstream 12,822, downstream 3,022, sum 15,844; downstream 3,022 / 15,844 = 19.1%; upstream 12,822 / 15,844 = 80.9%. Downstream assets 55,243 / 324,012 = 17.0%. Change 2024 to 2025: upstream 12,822 - 18,602 = -5,780; downstream 3,022 - 1,727 = +1,295; 1,295 / 5,780 = 22.4%; Brent 81 - 69 = 12, 5,780 / 12 = about 480 per $1. 2022 upstream 12,621 + 17,663 = 30,284; downstream 5,394 + 2,761 = 8,155. Margins 2025 on sales before eliminations: upstream US 5,815 / 45,518 = 12.8%; upstream international 7,007 / 42,861 = 16.3%; downstream US 1,375 / 72,485 = 1.9%; downstream international 1,647 / 69,925 = 2.4%. Earnings over year-end segment assets: upstream 12,822 / 256,975 = 5.0%; upstream US 5,815 / 84,559 = 6.9%; upstream international 7,007 / 168,200 = 4.2%; downstream 3,022 / 55,243 = 5.5%; downstream US 1,375 / 33,745 = 4.1%; downstream international 1,647 / 21,146 = 7.8%. US downstream 531 / 3,904 - 1 = -86.4%. CPChem 352 / 8,985 = 3.9%; 352 / 903 - 1 = -61.0%. TCO revenue 21,986 / 18,872 - 1 = 16.5%; TCO net income 2,496 / 5,779 - 1 = -56.8%. Hess net income 193 / 48,000 = 0.4%. ROCE 2015-2025: 2.5, -0.1, 5.0, 8.2, 2.0, -2.8, 9.4, 20.3, 11.9, 10.1, 6.6; sum 73.1 / 11 = 6.6% average; years at or above 8%: 2018, 2021, 2022, 2023, 2024 = 5 of 11. Production: Permian 1,000 / US 1,858 = 54%; 1,000 / 3,723 = 27%; Australia 472 / 3,723 = 12.7%; Q2 2026 4,070 / 3,396 - 1 = 19.8%; 4,070 / 3,120 - 1 = 30.4%. Guyana 30% x 1.7 million gross = 510 thousand. Gas: 0.91 x 6 = 5.46 per barrel of oil equivalent; 5.46 / 70.80 = 7.7%; 1.8 billion cubic feet / 6,000 = 300 thousand boe a day. Reserves: 3,723 x 365 = 1,359 million boe a year; 10,591 / 1,359 = 7.8 years. California refining 290 + 257 = 547 of 1,099 = 49.8%. Largest holders 8.56 + 7.50 + 7.00 + 6.70 = 29.76%. Balance sheet and returns: net debt 34,461 / 17,756 = 1.94, up 94%; dividends per share 6.84 / 4.28 - 1 = 59.8%; 6.84 / 6.63 = 1.03; returns 27.1 / 12.3 = 2.2 times; free cash flow 16.6 - 12.751 = 3.8 bn; buyback authorisation 75 - 44 = 31 bn; Q2 2026 buyback 3.0 bn / 16.2 million = $185 a share; shares 1,980 / 1,755 - 1 = 12.8%, 1,980 - 1,755 = 225 million; employees 43,039 / 45,600 - 1 = -5.6%; operating and SG&A 33,444 / 29,240 - 1 = 14.4%, 33,444 - 29,240 = 4,204; DD&A 20,132 / 17,282 - 1 = 16.5%, +2,850; income tax 7,258 / 12,299 = 59.0%. Valuation: trailing sales 184,432 - 90,476 + 114,755 = 208,711; trailing net income 12,299 - 5,990 + 14,282 = 20,591; 403.40 / 20.591 = 19.6 times; 403.40 / 12.299 = 32.8 times; implied forward earnings 403.40 / 12.77 = 31.6 bn, 31.6 / 12.3 = 2.6 times; trailing EPS approximately 20,591 / 1,970 = 10.45. Swings: timing 2.9 + 1.4 = 4.3 bn; international downstream 1,013 + 2,457 = 3,470. Further: California inputs 261 + 253 = 514, 514 / 1,038 = 49.5%; GS Caltex 58 / 4,403 = 1.3%, 437 / 4,403 = 9.9%; equity affiliate income 3,000 / 5,131 - 1 = -41.5%; affiliate production 538 / 3,723 = 14.5%; Hess share of 2025 production increase 261 / 385 = 67.8%; enterprise value less market value 431.95 - 403.40 = 28.55 bn; capital employed 232,934 / 177,698 - 1 = 31.1%; total assets 324,012 - 256,938 = 67,074; Hess issuance 15% / 6% = 2.5 years, 15% / 3% = 5 years; external sales 2015 downstream US 48,420 + 4,426 = 52,846, downstream international 54,296 + 2,933 = 57,229; 2020 downstream US 32,589 - 2,150 = 30,439 - segment earnings, returns and per-unit economics. — 2015-2026 · publ. September 2026 · source ↗
    Method: Arithmetic on figures reported in Chevron's Forms 10-K, 10-Q, earnings releases, proxy statement and market data; operands shown in the source line.
  8. ReportedThe Hess purchase contributed 261 thousand barrels a day of the 2025 production increase and legacy operations 124 thousand, so about two-thirds of the new volume, and most of the reserves that came with it, were bought rather than found.
    Chevron fourth-quarter and full-year 2025 earnings release, Form 8-K exhibit 99.1. — FY2025 · publ. 30 January 2026 · source ↗
  9. Moat Explorer calcThe Hess purchase contributed 261 thousand barrels a day of the 2025 production increase and legacy operations 124 thousand, so about two-thirds of the new volume, and most of the reserves that came with it, were bought rather than found.
    Moat Explorer calculation from Chevron's reported figures ($ millions unless stated). Segment mix 2025: external sales upstream US 19,608, upstream international 33,844, downstream US 65,331, downstream international 65,545, All Other 104, total 184,432; upstream 19,608 + 33,844 = 53,452, 53,452 / 184,432 = 29.0%; downstream 65,331 + 65,545 = 130,876, 130,876 / 184,432 = 71.0%; upstream US 19,608 / 184,432 = 10.6%; upstream international 33,844 / 184,432 = 18.4%; downstream US 65,331 / 184,432 = 35.4%; downstream international 65,545 / 184,432 = 35.5%. Upstream share of external sales 2015 (4,117 + 15,587) / 129,925 = 15.2%. Intersegment: upstream US 25,910 / 45,518 = 56.9%. Segment earnings 2025: upstream 12,822, downstream 3,022, sum 15,844; downstream 3,022 / 15,844 = 19.1%; upstream 12,822 / 15,844 = 80.9%. Downstream assets 55,243 / 324,012 = 17.0%. Change 2024 to 2025: upstream 12,822 - 18,602 = -5,780; downstream 3,022 - 1,727 = +1,295; 1,295 / 5,780 = 22.4%; Brent 81 - 69 = 12, 5,780 / 12 = about 480 per $1. 2022 upstream 12,621 + 17,663 = 30,284; downstream 5,394 + 2,761 = 8,155. Margins 2025 on sales before eliminations: upstream US 5,815 / 45,518 = 12.8%; upstream international 7,007 / 42,861 = 16.3%; downstream US 1,375 / 72,485 = 1.9%; downstream international 1,647 / 69,925 = 2.4%. Earnings over year-end segment assets: upstream 12,822 / 256,975 = 5.0%; upstream US 5,815 / 84,559 = 6.9%; upstream international 7,007 / 168,200 = 4.2%; downstream 3,022 / 55,243 = 5.5%; downstream US 1,375 / 33,745 = 4.1%; downstream international 1,647 / 21,146 = 7.8%. US downstream 531 / 3,904 - 1 = -86.4%. CPChem 352 / 8,985 = 3.9%; 352 / 903 - 1 = -61.0%. TCO revenue 21,986 / 18,872 - 1 = 16.5%; TCO net income 2,496 / 5,779 - 1 = -56.8%. Hess net income 193 / 48,000 = 0.4%. ROCE 2015-2025: 2.5, -0.1, 5.0, 8.2, 2.0, -2.8, 9.4, 20.3, 11.9, 10.1, 6.6; sum 73.1 / 11 = 6.6% average; years at or above 8%: 2018, 2021, 2022, 2023, 2024 = 5 of 11. Production: Permian 1,000 / US 1,858 = 54%; 1,000 / 3,723 = 27%; Australia 472 / 3,723 = 12.7%; Q2 2026 4,070 / 3,396 - 1 = 19.8%; 4,070 / 3,120 - 1 = 30.4%. Guyana 30% x 1.7 million gross = 510 thousand. Gas: 0.91 x 6 = 5.46 per barrel of oil equivalent; 5.46 / 70.80 = 7.7%; 1.8 billion cubic feet / 6,000 = 300 thousand boe a day. Reserves: 3,723 x 365 = 1,359 million boe a year; 10,591 / 1,359 = 7.8 years. California refining 290 + 257 = 547 of 1,099 = 49.8%. Largest holders 8.56 + 7.50 + 7.00 + 6.70 = 29.76%. Balance sheet and returns: net debt 34,461 / 17,756 = 1.94, up 94%; dividends per share 6.84 / 4.28 - 1 = 59.8%; 6.84 / 6.63 = 1.03; returns 27.1 / 12.3 = 2.2 times; free cash flow 16.6 - 12.751 = 3.8 bn; buyback authorisation 75 - 44 = 31 bn; Q2 2026 buyback 3.0 bn / 16.2 million = $185 a share; shares 1,980 / 1,755 - 1 = 12.8%, 1,980 - 1,755 = 225 million; employees 43,039 / 45,600 - 1 = -5.6%; operating and SG&A 33,444 / 29,240 - 1 = 14.4%, 33,444 - 29,240 = 4,204; DD&A 20,132 / 17,282 - 1 = 16.5%, +2,850; income tax 7,258 / 12,299 = 59.0%. Valuation: trailing sales 184,432 - 90,476 + 114,755 = 208,711; trailing net income 12,299 - 5,990 + 14,282 = 20,591; 403.40 / 20.591 = 19.6 times; 403.40 / 12.299 = 32.8 times; implied forward earnings 403.40 / 12.77 = 31.6 bn, 31.6 / 12.3 = 2.6 times; trailing EPS approximately 20,591 / 1,970 = 10.45. Swings: timing 2.9 + 1.4 = 4.3 bn; international downstream 1,013 + 2,457 = 3,470. Further: California inputs 261 + 253 = 514, 514 / 1,038 = 49.5%; GS Caltex 58 / 4,403 = 1.3%, 437 / 4,403 = 9.9%; equity affiliate income 3,000 / 5,131 - 1 = -41.5%; affiliate production 538 / 3,723 = 14.5%; Hess share of 2025 production increase 261 / 385 = 67.8%; enterprise value less market value 431.95 - 403.40 = 28.55 bn; capital employed 232,934 / 177,698 - 1 = 31.1%; total assets 324,012 - 256,938 = 67,074; Hess issuance 15% / 6% = 2.5 years, 15% / 3% = 5 years; external sales 2015 downstream US 48,420 + 4,426 = 52,846, downstream international 54,296 + 2,933 = 57,229; 2020 downstream US 32,589 - 2,150 = 30,439 - sales mix, production and ownership. — 2015-2026 · publ. September 2026 · source ↗
    Method: Arithmetic on figures reported in Chevron's Forms 10-K, 10-Q, earnings releases, proxy statement and market data; operands shown in the source line.
Sources
Generated September 25, 2026