Background and Parties

Edwin Arnaud, Inc. (EAI), a company formed by retired firefighter and oil and gas landman Edwin Arnaud, purchased property overlying the Rose City Oil Field in Orange County, Texas, with the intention of developing wetland mitigation banking projects. The property had been the site of oil and gas operations, with wells plugged prior to EAI's acquisition, leaving only infrastructure remnants and significant open water areas. When EAI contracted with Oiltanking in 2013 to place dredge spoil on submerged portions of the property, the Texas General Land Office (GLO), through Commissioner Dawn Buckingham, asserted the State's presumptive ownership of the submerged lands and demanded EAI lease the property from Texas.

The Subsidence Exception to State Ownership

EAI filed an ultra vires trespass to try title action, invoking an exception to Texas's presumptive ownership of submerged lands where submergence results from private mineral production activities. The central factual dispute concerned whether the Rose City Oil Field's hydrocarbon production was the sole substantial cause of submergence, or whether natural processes—erosion, relative sea level rise, tectonic subsidence, boat wake, and storm damage—contributed materially to the land going underwater. EAI presented expert testimony from Dr. John Sharp, a University of Texas professor emeritus and registered geologist, who testified that based on U.S. Geological Survey data and his modeling of Gulf Coast oil fields, natural subsidence in the area would have produced at most half an inch of elevation loss between 1950 and 1994, while the actual subsidence measured six-and-a-half feet.

Expert Testimony on Causation

Sharp's analysis excluded alternative causes as substantial factors. He testified that

the production of hydrocarbons from the Rose City Field was a substantial factor in causing submergence which was caused by subsidence; and without this, that land would not have submerged.

Licensed State Land Surveyor Nedra Townsend corroborated Sharp's findings through benchmark analysis, concluding

the land ha[d] sunk substantially from when the well was put in in 1950

and that

this amount of drop was caused by the withdrawal of oil and water from that Rose City Field.

Townsend's comparison of 1953 aerial surveys—taken three years after field operations commenced—with 1994 topographic maps demonstrated that open water areas visible in later surveys were absent in the earlier imagery, supporting the temporal correlation between production and submergence. Both experts dismissed erosion from boat traffic, noting canals had not

migrated significantly in any of the aerial photographs or topographic maps,

and that wind-driven wave erosion could not occur until after submergence had already taken place.

Procedural History and GLO's Arguments

Following a bench trial in the 163rd District Court of Orange County, the trial court rendered judgment for EAI, finding that the submerged land became submerged solely as a result of oil, gas, and saltwater production. On appeal, Commissioner Buckingham challenged the legal sufficiency of the evidence supporting three findings: (1) that submergence resulted solely from hydrocarbon production; (2) that EAI's claims were not barred by the Texas Natural Resources Code; and (3) that limitations did not bar EAI's claims. The Commissioner alternatively argued that if the evidence was sufficient, the judgment should be reformed to specify only the particular submerged property at issue rather than the broader tract boundaries.

Implications for Practitioners

The Beaumont Court's affirmance establishes important precedent for title disputes involving subsidence-submerged lands in Texas coastal oil and gas producing regions. The decision confirms that where a landowner can establish through competent expert testimony that mineral production was the sole substantial cause of submergence—excluding natural processes as de minimis contributors—the exception to state ownership applies. For operators and surface owners in mature Gulf Coast fields experiencing subsidence, this holding provides a framework for defending against GLO ownership assertions: detailed geological analysis quantifying production-induced subsidence versus natural subsidence rates, benchmark surveys establishing elevation changes correlated with production timelines, and historical aerial photography demonstrating the absence of open water prior to field development. The case also highlights the GLO's practice of asserting ownership claims during permitting processes for coastal development projects, creating potential title clouds that can be resolved only through affirmative litigation. Practitioners should note that the court rejected limitations and Natural Resources Code defenses, though the opinion does not detail that analysis, suggesting these statutory bars may have limited application to subsidence-based title claims where the state's assertion of ownership is relatively recent compared to the underlying production activity.