U.S. shale oil producer Continental Resources Inc. (NYSE: CLR) said April 5 it boosted founder and CEO Harold Hamm's compensation by 38% in 2017.

Hamm, who is the company's largest shareholder, received $12.3 million in compensation last year, the company said in a regulatory filing.

Hamm received a 46% salary increase to $1.2 million. His bonus and stock award also grew during the year, to $3.4 million and $7.6 million, respectively.

The value of perks Hamm received during the year, including personal use of the company aircraft and company vehicle, fell to $60,077.

An executive's total compensation often includes a base salary, stock grants, bonus and other items.

Shares of Continental initially fell in 2017 but recovered to end the year up about 4%.