Farris, who will act as a consultant to Apache for the next 36 months, will collect his $1.75 million salary during that time. He will also receive two bonus payments of $2.6 million and a lump sum of $1.4 million, according to a filing with the U.S. Securities and Exchange Commission.

The executive, who is the company's non-executive chairman until May 1, is also entitled to the vesting of all his restricted stock and options, according to the filing.

(Reporting by Anna Driver; editing by Terry Wade)