March 9 (Reuters) - Continental Resources founder and chairman Harold Hamm has bought about $20 million of the shale producer's stock, according to a regulatory filing published on Wednesday.
The purchases comes as crude prices surged to multi-year highs since Russia, the world's second-largest crude exporter, invaded Ukraine. Brent crude hit $139 on Monday, its highest since 2008.
Last month, he had cut his stake in the company by more than two-third to about 50% by distributing shares to his family members. In December, Hamm bought more than $16 million in company shares.
Continental's shares were up as much as 0.46% in extended trading. (Reporting by Rithika Krishna in Bengaluru; Editing by Arun Koyyur)
