2011 Land Report 100: D.M. O’Connor Heirs
No. 15 D.M. O’Connor Heirs
Dennis Martin O’Connor was reportedly disappointed to strike oil instead of water when he and his father began drilling artesian wells to water their cattle. Eventually, the Tom O’Connor Field (named for D.M.’s father, the original Texas Cattle King) became one of the world’s most productive oil fields. Today, D.M.’s descendants share ownership of the family’s ranches in South Texas.
- 2011 Land Report 100: Irwin Heirs
No. 46 Irwin Heirs 210,000 acres John Irwin II purchased the historic O RO Ranch in the early 1970s, and today the land is owned by his heirs. The O...