The Hawkins Field in Wood County is East Texas’s other Woodbine giant — discovered by Humble Oil in 1940, ten years after the East Texas Field, and managed ever since as one of the most technically sophisticated gravity-drainage projects in the world. Its signature program injects inert gas at the crest of the structure to maintain the gas cap while oil drains to downdip wells, and the field still reports production figures most modern fields would envy.
Source: Texas Railroad Commission production filings, aggregated across RRC field designations 39724001. Reported volumes lag the calendar by several months.
Humble Oil (predecessor of ExxonMobil) discovered Hawkins in December 1940 on a large salt-cored anticline, proving a Woodbine accumulation approaching a billion barrels of oil in place. Unlike the East Texas Field’s water-drive free-for-all, Hawkins developed under substantially unified control, which allowed the reservoir to be managed as a single machine from early in its life.
The field’s defining engineering came in the 1970s and 1980s: as the natural gas cap expanded and threatened to trap oil updip, the operator built one of the industry’s landmark inert-gas injection projects — separating nitrogen-rich gas and reinjecting it at the crest to stabilize the gas-oil contact and let gravity drainage work at maximum efficiency. The Hawkins program became a standard case study in petroleum engineering curricula.
Operatorship passed from ExxonMobil to independent operators in the 2000s, and the field has continued to justify investment — its RRC filings still show strong oil and substantial gas volumes eight decades after discovery.
Hawkins produces from the Cretaceous Woodbine sandstone draped over a deep-seated salt dome at roughly 4,500 feet. The structure’s high relief is what makes gravity drainage so effective: oil migrates downslope to producing wells while the maintained gas cap provides the drive from above. Shallow Eocene sands charged by the field carry minor additional production.
Hawkins’s inert-gas crestal injection is enhanced recovery by reservoir management rather than by chemistry — using separated nitrogen-rich gas to preserve the gravity-drainage mechanism that recovers oil more completely than any pump could. Recovery efficiency at Hawkins ranks among the best of large US sandstone fields, and the program is the reason a 1940 discovery still reports millions of barrels a year.
Wood County mineral owners sit atop one of the longest-lived royalty streams in Texas. Hawkins interests are frequently inherited, frequently fractionated, and — because the field’s engineering story is unusual — frequently mispriced by buyers using generic decline assumptions. We buy Hawkins-area minerals and royalties directly and value them on the field’s actual gravity-drainage performance in the RRC record.
County-level well data, production charts, and selling guides for the counties this field spans:
Yes — strongly. The field still reports millions of barrels of oil and substantial gas volumes to the Texas Railroad Commission each year, sustained by its long-running gravity-drainage and crestal gas injection program.
A program, begun under Exxon in the 1980s, that separates nitrogen-rich gas from production and reinjects it at the top of the structure. It maintains the gas cap that drives oil downdip to producing wells — preserving the field’s exceptionally efficient gravity-drainage mechanism.
Both produce Woodbine sandstone, but Hawkins is a salt-cored structural trap managed under unified control with gas-cap drive, while the East Texas Field is a giant stratigraphic trap with a natural water drive. Hawkins today produces at far higher rates; East Texas is the larger historic accumulation.