Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
coalbed methane  | |
|---|---|
| BT | petroleum |
| .natural gas | |
| ..coalbed methane | |
| RT | coal |
| energy sources | |
| Cedar Hill Field | |
| cleats | |
| coal seams | |
| methane | |
| SN | Before 1993, also search natural gas and coal. Commodity term. See List C. |