about us

The Hille Foundation is a private, family foundation founded in 1997 by Jo Bob and Mary Ann Hille.

We are based in Tulsa, Oklahoma, and we operate for the purpose of supporting worthwhile non-profit organizations and projects in that geographic area. Our focus is serving the under-served .  We exclusively fund organizations with a 501(c)(3) status determination from the Internal Revenue Service.  Our areas of funding interest include: public education, social services, programs supporting women and children, health, Type I diabetes research and support, younger-onset Alzheimer’s disease research and support, and community improvement and development. We fund programs, operating expenses, and capital campaigns within our areas of funding interest.  We do not fund endowments, individuals or international charities.

founders of the hille foundation

Jo Bob and Mary Ann Hille founded the Hille Foundation in 1997. It was a natural outgrowth of the spirit of giving in which they had been raised and of the basic Christian principle of lending a hand where needed. Feeling a deep loyalty, additionally, to the people and state of Oklahoma where they both had grown up, they set up the Hille foundation to focus on benefiting those closest at hand, hoping to extend to others the opportunities that had been generously given to them.


Jo Bob Hille was born in 1941, and raised in Collinsville, Oklahoma. He attended Oklahoma University where he majored in petroleum engineering and joined Sigma Chi Fraternity. He completed his degree at the University of Tulsa and began a life-long career in the oil and gas business with his first job at Sunray D-X Oil Company. He eventually settled in Tulsa with his wife and college sweetheart Mary Ann Moyers, in 1972, when he joined Andover Oil Company. He went on to co-found Vintage Petroleum, a publicly traded oil and natural gas company on the New York Stock Exchange. Jo Bob served in many positions at Vintage including Chief Executive Officer, and retired in 1999. He passed away in 2006, but left a legacy of giving and generosity that transcends his death. He was always a small town boy who held the idea of community and support of community efforts in the highest regard.

Mary Anne Hille0114.jpg

Mary Ann Hille grew up in Tulsa, graduated from Edison High School, and attended Oklahoma University where she was a member and officer of Delta Gamma Fraternity. She met her husband Jo Bob there and later completed her Bachelor of Arts degree at the University of Tulsa. She went on to receive a master’s degree in human relations from the University Center at Tulsa, graduating magna cum laude. She worked as a high school and elementary school teacher, a case manager, and as a volunteer for many positions on PTA boards, other non-profit boards, church groups, and community service agencies, and presently serves at a Trustee and President of the Hille Foundation. Mary Ann is a published author and an avid community volunteer. Mary Ann and Jo Bob raised four children together and were married for 43 years at the time of his death. She is the proud grandmother of seven grandchildren. Their family believes passionately that contributing to the common good is both an expectation and a reward.