Anahuac Field lies in Chambers County, Texas, near the town of Anahuac at the head of Galveston Bay, over one of the deep-seated salt domes that made the upper Texas coast so productive. The main Frio reservoir was discovered in 1935 and had produced more than 225 million barrels by the early 1980s, ranking Anahuac among the larger fields of the Gulf Coast dome province. Development continued across several reservoirs for decades, and mineral ownership across the surrounding rice and cattle country remains widely divided among long-established Chambers County families.
Source: Texas Railroad Commission production filings, aggregated across RRC field designations 02468001, 02468660. Reported volumes lag the calendar by several months.
The mid-1930s were the peak years for deep-seated salt dome exploration on the upper Texas coast, as improved geophysics let operators map structures that gave no surface expression. Anahuac Main Frio was discovered in 1935, one of a cluster of Chambers County discoveries that also included Turtle Bay in the same year and Cedar Point in 1938. The field developed rapidly on flat coastal prairie near Galveston Bay, and by the early 1980s the main Frio reservoir alone had produced more than 225 million barrels of oil.
Chambers County drilling continued through the 1940s and 1950s with Oyster Bayou, Fig Ridge and Trinity Bay adding substantial reserves nearby, so Anahuac operated within a busy district with shared infrastructure and gathering systems. As with other Frio dome fields, reservoir energy came initially from water drive and gas cap expansion, and secondary recovery through gas and water injection followed as pressure fell. Development touched many separate fault blocks, each with its own leases, units and royalty decimals.
By the later twentieth century Anahuac had matured into a low-rate field worked by independents rather than majors, with attention on workovers, recompletions into bypassed sands and keeping marginal wells producing. The coastal setting brings its own complications, from wetlands and storm exposure to surface access across marsh and rice acreage. Mineral interests here often trace back to families who have held Chambers County land since well before the discovery, and they are typically fractionalized across many heirs.
Anahuac produces from Oligocene Frio sandstones over a deep-seated salt dome that arched the overlying section without piercing through it. Oil accumulated in fault-bounded blocks around the dome crest, with individual sands sealed against radial faults, so the field is a set of related but hydraulically separate reservoirs rather than a single tank. Depths generally fall in the range typical of upper coast Frio production, and the sands are porous and permeable, with original drives supplied by water encroachment and gas cap expansion. That compartmentalized structure explains the long, staged development history.
Recovery at Anahuac followed the pattern of the Frio dome province: strong initial natural drive from water encroachment and gas cap expansion, then secondary recovery through gas and water injection as reservoir pressure declined. Because the fault blocks do not share pressure, injection had to be designed compartment by compartment, and support in one block says little about behavior in another. Late-life work has centered on recompletions into bypassed sands and on keeping water handling economic. There is no carbon dioxide project here, so remaining recovery depends on conventional injection and well maintenance.
Anahuac interests are typically small, mature and slowly declining, and honesty requires saying that the field’s biggest years are long past. Value now rests on the stability of the remaining stripper production, whether an active independent is reworking wells in your fault block, and how clean the title is after generations of Chambers County inheritance. Those factors are worth measuring rather than guessing. At Pointer Minerals we buy minerals and royalties in Chambers County and provide free written offers.
County-level well data, production charts, and selling guides for the counties this field spans:
Yes, though at modest rates. The field has produced since 1935 and is now worked mainly by independents focused on workovers and recompletions rather than new drilling. Whether your particular lease is producing depends on the fault block and unit, which the operator or Railroad Commission records can confirm.
Surface conditions can raise the cost of drilling and workovers, which affects how aggressively an operator develops an area. It does not change your ownership, but it is one reason coastal interests are usually valued on existing production rather than on drilling potential.
Yes. Each owner can sell their undivided share independently, and we regularly purchase from one heir while others keep theirs. If the family prefers to sell together we can quote the whole interest and close it in one transaction. Either way, the written offer is free.