Oklahoma State University Medical Center is terminating its management agreement with St. John Health System.

The medical center trust approved the decision Thursday at its regular meeting.

Trust chairman Jerry Hudson told the Tulsa World that because the two hospitals operate in the same marketplace, there were conflict-of-interest issues.

The medical center was on the verge of collapse in 2008 when the OSU College of Osteopathic Medicine announced it was pulling its residency programs. The hospital raised about $100 million in public and private funds to stay alive, and the city trust took ownership in May 2009.

Hudson said he didn't know when the agreement would end, and many of the details about how the hospital will operate without St. John are uncertain.