CHK Oil (HKG:0632) extended its memorandum of understanding with Aral Petroleum Capital by six months to Nov. 11 to allow more time for due diligence and negotiations, according to a Monday filing with the Hong Kong bourse.
Shares of the oil company were down over 2% in Tuesday morning trade.
The latest move follows an earlier three-month extension granted in February, which had extended the memorandum to May 9.
The memorandum was originally signed in November 2025, when CHK Oil's wholly owned unit agreed with Aral Petroleum to consider potential cooperation in oil exploration and production projects in Kazakhstan.
The proposed tie-up covers oilfields in Kazakhstan's Aktobe region and may include the introduction of advanced technologies for oilfield exploration, production, and operations.