Random triples
| Subject | Object |
|---|---|
| gptkb:Utica_Shale | natural gas |
| gptkb:Bakken_Formation | Williston Basin oil |
| gptkb:Utica_Shale | gptkb:oil |
| gptkb:Lower_Bakken_Shale | gptkb:oil |
| gptkb:Lower_Wolfcamp_Shale | gptkb:oil |
| gptkb:Lower_Bakken_Shale | natural gas |
| gptkb:Duvernay_shale | Leduc oil field |
| gptkb:Lower_Wolfcamp_Shale | natural gas |