| GREENWOOD OIL LIMITED LONDON OIL AND GAS LP 1981(1)Location not reported, CO · Exists | Location not reported, CO | Partnership | Jan 5, 1982 | Exists |
| GREENWOOD OIL LIMITED LONDON OIL AND GAS LP 1981(2)Location not reported, CO · Exists | Location not reported, CO | Partnership | Jan 5, 1982 | Exists |
| GREENWOOD OIL LIMITED LONDON OIL AND GAS LP 1981(3)Location not reported, CO · Exists | Location not reported, CO | Partnership | Jan 5, 1982 | Exists |
| GREENWOOD OIL LIMITED LONDON OIL AND GAS LP 1981(6)Location not reported, CO · Exists | Location not reported, CO | Partnership | Jan 5, 1982 | Exists |
| GREENWOOD OIL LIMITED LONDON OIL AND GAS LP 1981(7)Location not reported, CO · Exists | Location not reported, CO | Partnership | Jan 5, 1982 | Exists |
| GREENWOOD OIL LIMITED LONDON OIL AND GAS LP 1981(8)Location not reported, CO · Exists | Location not reported, CO | Partnership | Jan 5, 1982 | Exists |
| GREENWOOD OIL LIMITED LONDON OIL AND GAS LP 1981(4)Location not reported, CO · Exists | Location not reported, CO | Partnership | Jan 5, 1982 | Exists |
| GREENWOOD OIL LIMITED LONDON OIL & GAS LP 1981(10)Location not reported, CO · Exists | Location not reported, CO | Partnership | Feb 10, 1982 | Exists |
| GREENWOOD OIL LIMITED LONDON OIL & GAS LP 1981(11)Location not reported, CO · Exists | Location not reported, CO | Partnership | Feb 10, 1982 | Exists |
| GREENWOOD 1982-A OIL AND GAS LIMITED PARTNERSHIPLocation not reported, CO · Exists | Location not reported, CO | Partnership | Jun 10, 1982 | Exists |
| GREENWOOD OIL LIMITED LONDON OIL & GAS LP 1982/A12Location not reported, CO · Exists | Location not reported, CO | Partnership | Nov 8, 1982 | Exists |
| GREENWOOD OIL LIMITED LONDON OIL & GAS LP 1982/A13Location not reported, CO · Exists | Location not reported, CO | Partnership | Nov 8, 1982 | Exists |
| GREENWOOD 1982-C OIL AND GAS LIMITED PARTNERSHIPLocation not reported, CO · Exists | Location not reported, CO | Partnership | Dec 28, 1982 | Exists |
| GREENWOOD OIL LIMITED LONDON OIL AND GAS LP 1981(5)Location not reported, CO · Exists | Location not reported, CO | Partnership | Jan 5, 1982 | Exists |