| # | Acquired | Date | Type | Status | Price | |
|---|---|---|---|---|---|---|
| 1 |
W
Western Gas Resources, Inc.
Western Gas Resources, Inc is an energy company based in Denver, Colorado.
|
2006-08-23 | Acquisition | Complete | — | Deal → |
| 2 |
Kerr McGee
Exploration and production of oil
|
2006-06-23 | Acquisition | Complete | $16.4B | Deal → |
| 3 |
H
Howell Corporation
Development of oil and gas properties
|
2002-09-30 | Acquisition | Complete | $258.0M | Deal → |
| 4 |
B
Berkley Petroleum
Berkley Petroleum is an exploration & production Canadian company.
|
2001-02-15 | Acquisition | Complete | — | Deal → |
| 5 |
U
Union Pacific Resources
Union Pacific Resources Group, Inc. is a major North American independent oil an…
|
2000-04-09 | Acquisition | Complete | $4.4M | Deal → |