The company pleaded guilty in 2007 to one count of criminally negligent discharge of oil , a misdemeanor , and paid $ 20 million in penalties and restitution . BP : Oil company says BP is retiring in September . NEW : Congressman says it ` ` early retirement '' after election . Congress is probing pipeline maintenance , they say . BP managers have complained to company watchdog .
BP : Oil company says BP is retiring in September . NEW : Congressman says it ` ` early retirement '' after election . Congress is probing pipeline maintenance , they say . BP managers have complained to company watchdog .