Kazakhstan's oil production in the first half of 2025 witnessed a significant surge of approximately 11.6%, reaching 49.9 million tonnes (mt), compared to the same period in 2024, according to a Reuters report, citing senior officials.

The nation's persistent overproduction has been a point of contention within OPEC+, which includes the Organisation of the Petroleum Exporting Countries (OPEC) and allies such as Russia.

Industry sources note that Kazakhstan's output has consistently surpassed the group's quotas, causing friction among some members.

On 15 July, Kazakhstan's Energy Minister Erlan Akkenzhenov said that the country exported 39.6mt of oil, equivalent to 1.64 million barrels per day (mbpd), and anticipates exports to reach 70.5mt for the year.

Kazakh Prime Minister Olzhas Bektenov further stated that despite the challenges in adhering to OPEC+ production quotas, largely due to the expansion of the Chevron-led Tengiz oilfield, there are no plans to withdraw from the pact.

Chevron has been increasing its output at Tengiz, the biggest oil field in Kazakhstan, playing a significant role in the nation's boost in production.

The country's OPEC+ production quota is expected to increase to 1.532mbpd in August, up from 1.514mbpd in July, excluding the output of gas condensate.

According to OPEC's monthly report, Kazakhstan led a substantial production increase among OPEC+ members in February, with the collective output of the alliance rising by 363,000bpd to 41.01mbpd.

Kazakhstan's oil production levels have reached new highs, with February's output soaring by 198,000bpd to 1.77mbpd, which is at least 300,000bpd above its designated OPEC+ ceiling.