Sabrina Obregon Oil History By rmulli1 Jan 1, 1911 a water-well drilling outfit on the W. T. Waggoner Ranch in Wichita County hit oil http://www.texasalmanac.com/topics/business/history-oil-discoveries-texas Jan 2, 1917 came the discovery of the Ranger Field in Eastland County. Jan 5, 1922 The Luling Field in Caldwell County open Jan 4, 1925 Howard County was opened for production Jan 3, 1929 The Darst Creek Field in Guadalupe County was opened