UPDATE: A man critically injured in the Dec. 19 oil rig explosion in Coalgate died Saturday morning, marking the third death in explosion. 

Family members say Mark Pittman died Saturday morning about 8:30 a.m. at Integris Health in Oklahoma City. 

Fundraising efforts for his recovery will now be used to help Pittman's wife and four children.

COAL COUNTY -- The family of a Texoma man critically injured in an oil rig explosion says he has suffered a setback in his recovery effort.

The wife of Coal County oil rig worker Mark Pittman says his other lung has collapsed.

Pittman now has a tube in each to help him breathe.

His wife says the father of four had his latest surgery canceled so he can try to become stronger.

Since we first reported on his recovery, his Go Fund Me page has raised an additional $8,000 for a total of $12,735.

Pittman and several other workers were hurt and two employees died when an oil rig exploded outside Coalgate in December.