![US Shale Leader Pioneer Shares Plunge as Gas Output Rise](https://eng-archive.aawsat.com/wp-content/uploads/2017/08/download-1-2.jpg)
Media ID: 55380227
Caption:
Caption:
A pump jack operates at a well site leased by Devon Energy Production Company near Guthrie, Oklahoma September 15, 2015. REUTERS/Nick Oxford
![US Shale Leader Pioneer Shares Plunge as Gas Output Rise](https://eng-archive.aawsat.com/wp-content/uploads/2017/08/download-1-2.jpg)
A pump jack operates at a well site leased by Devon Energy Production Company near Guthrie, Oklahoma September 15, 2015. REUTERS/Nick Oxford