The lazy question about $108 Brent is what it does at the pump. Everyone knows that direction already, and knowing it pays nobody. The question worth asking is what a barrel above $100 does to a forward model built on a declining price deck, reverting from a quarter the market has already overtaken.
WTI settled at $100.05 on Friday 11 September and Brent at $104.61, both press-reported, up 9.4% and 8.7% on the week after drone strikes suspended Saudi Arabia's East-West pipeline and a projectile struck a vessel in the Strait of Hormuz; Brent was quoted $108.90 on Monday morning. Our Occidental model and our Vista model both start their forward price path in the June quarter, and Friday's settle is 7.8% above the marker each begins from — $92.79 WTI for Occidental, a $97.06 Brent average for Vista. Both decks are ours and both are assumptions — yet the same one leaves a model 22% below the market and the other 40% above.
$107 Brent is not a $107 barrel
Occidental realised $96.78 a barrel of oil in the June quarter, 104% of the WTI marker. Against 713,000 barrels a day of oil, though, went 333,000 of NGL at $24.64 and 2,323 MMcf of gas at negative $0.80, a Waha dislocation the CFO said should normalise. Weight the three:
(713 × $96.78 + 333 × $24.64 + 2,323 × −$0.80) ÷ 1,433 = $52.58 per barrel of oil equivalent.
Our model carries $52.63, derived from $6,882m of Oil & Gas net sales over 130.8m BOE. Converting a $107 headline into Occidental's unit costs 46% of the barrel.
Vista's unit differs again. Its crude line earns $97.29 a barrel of gross revenue, being $1,198.95m over 135,427 barrels a day across 91 days. Strip the non-controlling stake in Bandurria Sur, sea freight and hedges — $23.0m, $63.1m and −$5.6m in the quarter, or $1.87, $5.12 and −$0.45 a barrel — and $97.29 becomes $90.76, close to the roughly $89 Vista itself publishes.
Both decks have the barrel 6.5% to 12.5% cheaper by December
Occidental's realised price drifts down 7.5% a quarter, decaying toward flat, because management's own 2030 cash-flow bridge is struck at "~$65 WTI" rather than at the tape. Vista's drifts down 3.66% a quarter toward its guided $85 Brent this year and $75 real by 2028. Run both forward: by December our models assume Occidental realises $46.05 per BOE, 12.5% below the June quarter, and Vista $90.97 gross, 6.5% below. The marker is 7.8% above.
Drift is the softest input in either model, so here is each fair value three ways.
Fair value per share from our models; closes are 11 September 2026
| Price drift on the driver | Occidental | Vista |
|---|---|---|
| As published | $47.78 | $106.98 |
| Half as steep | $56.25 | $118.92 |
| Flat price held | $65.69 | $131.85 |
| Close, 11 September | $61.46 | $76.27 |
Each row re-runs the published model with only the price driver's quarterly drift changed and every other input held. Occidental's published drift is -7.5% a quarter, Vista's -3.66%; the middle row halves each. Fair values are ours and are assumptions, not price targets.
Occidental's share price sits inside that range, between half the drift and none of it. Vista's sits below every row, including the steepest. Crude over $100 is therefore not one directional call on two stocks: it closes our gap on Occidental and widens it on Vista.
Occidental has already sold 100,000 barrels a day at $75.89
In February Occidental entered two-way collars on 100,000 barrels a day running March through December 2026, floored at $55.00 and capped at a volume-weighted average of $75.89 WTI — 14.0% of the oil it sold per day in the June quarter. No such line existed in 2025. It cost $339m before tax in the March quarter and returned $105m in the June quarter, both booked as items affecting comparability.
At Friday's settle the cap sits $24.16 under the market: 100,000 × $24.16 × 92 days is $222m across a full fourth quarter, cash, on barrels already sold. CFO Sunil Mathew told the first-quarter call that Occidental had stopped adding hedges and did not intend to add more, so the cap expires at the end of December with nothing behind it. Vista's equivalent is smaller and shorter-dated: its commodity risk management contracts cost $150.7m in the March quarter and returned $5.6m in June.
Nothing settles until October's realised price
A fortnight above $100 does not rewrite twenty quarters. Both decks deliberately track management's long-run planning prices rather than spot, so a spike mean-reverting inside a month leaves them untouched. Vista publishes the elasticity sizing the other side: about $200m of adjusted EBITDA per $10 a barrel across half a year, roughly $400m annualised against a $3.0bn guide.
The falsifier is a date. October's third-quarter results carry each company's realised price for a quarter already running above the basis quarter. Should Occidental's print above the June quarter instead of the $48.68 our model assumes, the drift is wrong in sign for at least one quarter — worth $17.91 a share at the $65.69 a flat deck produces. Friday's move is the barrel; the record diesel price of 11 September came from the spread and explicitly not from crude.
Friday's settlements and weekly moves are as reported by Rio Times; Monday's Brent quote is Trading Economics' intraday level against that settle, not a close. The pipeline suspension and Hormuz strike are Reuters-sourced; East-West capacity figures are press characterisation, not Saudi disclosure. Occidental's volumes, realised prices, markers, net sales and derivative items come from its June-quarter release, the collar terms from its first-quarter 10-Q, and the CFO's remark on adding no further hedges is press-reported from that quarter's call. Vista's revenue bases, export duties, sea freight, risk-management contracts and per-$10 elasticity come from its SEC-filed second-quarter presentation. Share prices are closes of 11 September. Every conversion, bridge, drift path, fair value and hedge cost is ours — assumptions, not company forecasts.
