Wellbore stability problems developed during the bit trip Saturday, making it necessary to back-ream out of the hole. The trip out was completed successfully despite two very tight intervals where the pipe was stuck briefly. This morning, a reaming trip was started in order to clean out the well and circulate in slightly denser mud. During the reaming trip into the hole, with the bit at a depth of 12,030 feet (~150 feet off bottom) the pipe got stuck. Actions are currently being taken to remedy the situation.