Texas and Louisiana Gulf Coast
and Wilcox Trends in Texas RRC Districts 2, 3 and 4
- Yegua and Cockfield Trends in Southwestern Louisiana
- Cretaceous Trend in Texas RRC District 1
- Eagleford / Eaglebine Trend in Brazos, Grimes and Madison Counties
- Travis Peak, Cotton Valley, Haynesville Shale and Haynesville Lime Trends
in Angelina, Cherokee, Nacogdoches, Sabine and Shelby Counties.
- James Lime in Shelby and Nacogdoches Counties.