Drill Bits: Chesapeake Clips McClendon’s Wings, Frack Fluid Migration, and Mining Patient Data

MarketWatch: Chesapeake Energy’s Aubrey McClendon is forced to step down as board chair, but remains CEO.

ProPublica: A new study predicts frack fluid migrating into aquifers within years.

Bloomberg: Geisinger Health System, a chain of hospitals in central Pennsylvania, will mine data to determine how gas drilling is affecting patient health.