ExxonMobil Chairman and CEO Darren Woods (left) and Pioneer CEO Scott Sheffield [Photos: Business Wire]
Jeanne M. Johns has been appointed as an independent director to the board of Dallas-based HF Sinclair Corp.
Her appointment increases the size of the board to 13 directors and increases the number of independent directors on the board from 10 to 11....
Aethon Energy Operating LLC announced that Andrea Wescott Passman has been appointed as chief operating officer, Kang Chen as chief information officer, and Kat Lyles as general counsel....
Pioneer Natural Resources CEO Scott Sheffield, left, will retire at year end. COO Richard Dealey has been named as the shale oil producer's next chief executive officer. [photos: Pioneer Natural Resources]