Karachaganak Field Loses 65,000 Barrels Daily After Drone Strike Shuts Russian Processing Plant

Ukraine's military struck the Orenburg gas-processing plant in western Russia on June 24, forcing a production halt at one of Kazakhstan's three largest oil fields. The Karachaganak field, in western Kazakhstan roughly 170 kilometres from the Russian border, has cut crude output by more than one-quarter since the attack. Kazakhstan confirmed the outage on June 26, stating it has no timeline for full resumption of processing.

Production Volumes: From Tonnes to Barrels

Karachaganak normally pumps about 34,000 tonnes of crude per day, equivalent to approximately 245,000 barrels per day at the field's standard conversion of 7.2 barrels per tonne. Since the strike, output has dropped to 25,000 tonnes per day, or about 180,000 barrels per day, per disclosures reported by Bloomberg and Reuters on June 26. The 9,000-tonne daily shortfall converts to approximately 65,000 barrels per day of lost production. At Brent crude of $73.38 per barrel as of late morning Monday on ICE, the consortium is losing roughly $4.8 million per day in gross crude revenue.

Karachaganak accounts for approximately 10 percent of Kazakhstan's total oil output, according to Oil & Gas 360. Kazakhstan has set a 2026 annual production target of 98 million tonnes. As one of the country's three largest hydrocarbon projects alongside Tengiz and Kashagan, the field is a critical pillar of Kazakhstan's export base.

The KPO Consortium: Who Bears the Loss

Five companies operate Karachaganak through the Karachaganak Petroleum Operating consortium, known as KPO. Shell and Eni each hold 29.25 percent, making them joint operators and equal-share partners. Chevron holds 18 percent, Lukoil holds 13.5 percent, and KazMunayGas, Kazakhstan's state oil company, holds 10 percent, having joined the joint venture in July 2012.

At the consortium level, the daily revenue shortfall divides proportionally to equity. Shell and Eni each absorb approximately $1.4 million per day. Chevron loses roughly $860,000 per day, Lukoil roughly $645,000 per day, and KazMunayGas approximately $480,000 per day.

Shell's Stake Traces to the BG Group Acquisition

Shell holds its 29.25 percent interest through a subsidiary called BG Karachaganak Limited, a fully owned affiliate. Shell acquired BG Group in 2016 for approximately $49 billion, adding BG's Karachaganak stake to Shell's portfolio alongside BG's global LNG and deep-water assets. The Karachaganak project runs under a production-sharing agreement valid until 2041.

Lukoil's position within the consortium adds a geopolitical dimension. Ukrainian drone attacks on Russian energy infrastructure are the direct cause of the current production disruption. The Russian partner Lukoil holds a 13.5 percent stake in the very field whose output those same strikes have curtailed.

Why the Orenburg Plant Is Indispensable

Karachaganak produces crude oil and natural gas together. The field cannot substantially reduce gas output without also cutting oil production. Raw gas from Karachaganak flows to the Orenburg processing plant, which removes commercial-grade gas fractions before returning product to Kazakhstan.

Russia has begun repair work at the Orenburg facility but has not disclosed a timeline for restoration. Kazakhstan says it has no confirmed information on when the plant will resume full processing of Karachaganak gas. Previous Ukrainian strikes on Russian energy infrastructure have taken anywhere from several days to several months to repair, depending on damage severity.

OPEC+ Context

Kazakhstan is one of seven countries in OPEC+'s current output programme, alongside Saudi Arabia, Russia, Iraq, Kuwait, Algeria, and Oman. On May 3, 2026, the group agreed to add 188,000 barrels per day of collective production in June, per CNBC. The Karachaganak outage removes roughly 65,000 barrels per day from Kazakhstan's production capacity at the moment the country was asked to lift output. No firm repair timeline exists, raising uncertainty about whether Kazakhstan can deliver its share of the June adjustment.