Top 10 drillers in Texas

(Wednesday, May 8 through Tuesday, May 14) Occidental Petroleum: 26 Exxon Mobil: 21 Endeavor Energy Resources: 18 Chesapeake Energy: 14 Diamondback Energy: 12

EOG Resources: 12 Jagged Peak: 11 Shell: 7 Concho Resources: 7 CrownQuest Operating: 7 Source: Railroad Commission of Texas