BP oil refinery jetty at Kwinana Western Australia with tanker vessels moored at industrial berth
Wikimedia Commons / Calistemon (CC BY-SA 4.0)
Exploration & Production·Wednesday, August 5, 2026

BP Q2 2026 Underlying Profit Surges 143% to $5.7 Billion While Castrol Sale to Stonepeak Advances

BP's Q2 underlying profit surged 143% to $5.7 billion, with Castrol generating $775 million in H1 alone before its $6 billion sale to Stonepeak closes.

BP plc reported underlying replacement cost profit of $5.7 billion for the second quarter of 2026, a 143% increase from the $2.4 billion earned in Q2 2025. Operating cash flow reached $10.9 billion in the quarter, bringing the first-half total to $13.7 billion. Higher oil prices, stronger refining margins, and a resilient lubricants business drove the result, even as production volumes declined year on year.

Segment Results: Customers and Products Lead the Earnings Mix

BP's Customers and Products division generated $8.2 billion in underlying replacement cost profit for the first half of 2026, the largest contribution of any business segment. Refining margins expanded on higher realized spreads and firmer fuels demand. The division also recorded incremental gains from its midstream operations in the period.

The Oil Production and Operations segment earned $5.6 billion in H1 underlying replacement cost profit. Gas and Low Carbon Energy contributed $3.5 billion. The downstream-heavy earnings mix reflected favorable refining conditions alongside a year-on-year decline in upstream volumes.

Castrol: $775 Million in H1 Profit, Now Being Sold to Stonepeak

Castrol, BP's branded lubricants unit and a subsidiary within Customers and Products, generated $775 million in underlying replacement cost profit during the first half of 2026. Castrol products are sold in more than 140 countries across automotive, marine, and industrial markets. Despite that earnings contribution, BP agreed in December 2025 to sell a 65% controlling stake in Castrol to Stonepeak, a U.S. alternative investment firm.

The deal values Castrol at approximately $10 billion on an enterprise basis. BP receives $6 billion in cash for the 65% stake while retaining 35% under a two-year lock-in arrangement. The transaction is expected to close by year-end 2026. Castrol's $1.55 billion annualized underlying profit run rate implies a deal multiple of roughly 6.5 times annual earnings at the $10 billion enterprise value.

Castrol and the $20 Billion Divestment Program

The Castrol transaction is the single largest component of BP's $20 billion divestiture program. By the end of Q2 2026, the company had completed more than half of that target. Net debt stood at $22.3 billion against a goal of $14 billion to $18 billion by 2027. The $6 billion Castrol cash receipt will reduce that gap substantially once the deal closes.

Production Decline and Per-Barrel Earnings

BP produced 2,201 thousand barrels of oil equivalent per day in Q2 2026, down 4.3% from the 2,300 mboe/d recorded in the same quarter of 2025. Seasonal maintenance, North Sea disruptions, and Middle East operating constraints contributed to the decline. Full-year 2026 production guidance was lowered to a range of 2,180 to 2,270 mboe/d, from 2,312 mboe/d in 2025.

At 2,201 mboe/d over 91 days, BP produced roughly 200 million barrels of oil equivalent in Q2. Its $5.7 billion underlying quarterly profit translates to approximately $28.50 per barrel of oil equivalent. That sits below the earnings intensity implied by ExxonMobil's $14.5 billion Q2 net income and well below Saudi Aramco's $33.4 billion quarterly result, driven by Arabian Basin lifting costs in the range of $3 to $5 per barrel. BP's higher cost base reflects a portfolio weighted toward the North Sea, deepwater Gulf of Mexico, and international gas assets.

Atlantis Expansion and Capital Returns

In the Gulf of Mexico, BP's Atlantis Major Facility Expansion project reached first production during the quarter, adding 10,000 barrels of oil equivalent per day of new capacity. The Atlantis field is one of the deepest moored semi-submersible production platforms in the Gulf of Mexico. The expansion extends field life and partially offsets declines elsewhere in BP's deepwater portfolio.

Capital expenditure guidance for 2026 was set at $13.5 billion to $14.0 billion. BP raised its quarterly dividend to 8.66 cents per ordinary share, up from 8.32 cents in Q2 2025. Share buybacks totaled $114 million through the first half of 2026, as the company directed free cash flow primarily toward debt reduction.

Sources and methodology

Oil Authority synthesis: per-barrel underlying profit calculation ($28.50 per boe derived from SEC filing production and profit data), Castrol deal earnings multiple (6.5x annualized H1 2026 underlying profit at $10 billion enterprise value), and parent-subsidiary segment breakdown, not reported in the source wires.

Published by Oil Authority, edited by Adam Humphreys

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