Mark Walker is senior vice president of finance and chief financial officer (CFO) of Provident Energy Trust. A member of Provident's senior leadership team, Mark is responsible for all finance, financial reporting, treasury, and compliance activities. Prior to the appointment to his current position, Mark served as controller and CFO from 1997 to 2002. Mark joined Provident's predecessor Founders Energy in 1996 as controller. Founders Energy converted to Provident in 2001.

Mark has over 15 years of experience in petroleum finance and accounting. Prior to joining Founders Energy, Mark was team lead of financial reporting for Sceptre Resources, first joining the company in 1990. From 1988 to 1990, Mark was a revenue accountant with Dome Petroleum. Before Dome, Mark was an accountant with Hudson & Company from 1985 to 1988.

Born and raised in Calgary, Alberta, Mark received his bachelor of commerce in Accounting from the University of Calgary and later received his Certified Management Accountant designation. Mark and his family reside in Calgary.