SFR-57/18 : Shale play SFR-57/18 : Shale play https://www.tceq.texas.gov/downloads/publications/images/shale-callout.jpg/view https://www.tceq.texas.gov/downloads/publications/images/shale-callout.jpg/@@download/image/shale-Callout.jpg SFR-57/18 : Shale play SFR-57/18 : Shale play Click to view full-size image… Size: 104.6376953125KB