Hull Field lies in eastern Liberty County, Texas, near Daisetta and about forty miles northwest of Beaumont, over a piercement salt dome. Sun Oil Company located the dome in 1908, but ten years passed before Republic Production Company brought in the first producing well in 1918 at about 5,000 feet. Production jumped from 330,000 barrels in 1918 to roughly eight million barrels in 1921, and the field, together with the New Hull discovery of 1935, has produced well over 200 million barrels. Wells continue to produce today.
Source: Texas Railroad Commission production filings, aggregated across RRC field designations 43381001. Reported volumes lag the calendar by several months.
Geophysical and surface work identified the Hull salt dome in 1908, but the structure resisted drilling for a decade. Republic Production Company finally completed the discovery well in 1918 at roughly 5,000 feet, and the field opened in earnest. Output rose from 330,000 barrels in the discovery year to about eight million barrels in 1921, a rate of expansion that placed Hull among the significant Texas salt dome fields of the era and made Liberty County a center of drilling activity in the years after the first Gulf Coast boom.
Production tapered after the early 1920s peak, as it did at every dome field produced without pressure management. The story did not end there. In 1935 the New Hull field was discovered nearby, adding substantial reserves and confirming that the dome flanks held pools the early drillers had missed. Later development identified productive intervals at multiple depths, from shallow Miocene sands around 2,000 feet through Frio at roughly 4,000 feet, Yegua near 5,500 feet and Cook Mountain sands near 8,000 feet.
Hull settled into a long, productive maturity. As late as 1984 the field was still yielding more than 630,000 barrels a year along with sizable volumes of casinghead gas, and cumulative production had exceeded 200 million barrels by 2010. Modern activity centers on infill drilling between old wells, recompletions into bypassed sands and workovers rather than on new exploration. Liberty County mineral ownership in the area is heavily fractionalized after a century of inheritance and conveyance.
Hull sits on a piercement salt dome that pushed through the Tertiary section, upturning and truncating the surrounding sands against the salt flank. Oil is trapped in stacked flank sands at several levels, including Miocene around 2,000 feet, Frio near 4,000 feet, Yegua about 5,500 feet and Cook Mountain sands near 8,000 feet. Each level forms a separate steeply dipping trap sealed against the salt, so the field is a vertical stack of individually modest reservoirs rather than one large tank. That structure rewards careful, targeted drilling and explains a century of incremental discoveries.
Hull has been produced largely on natural drive with pumping, and it has never received a field-wide secondary flood. Because the productive sands are compartmentalized around the dome flank, operators have preferred to add value through infill drilling between existing wellbores, recompleting old wells into sands that were bypassed when they were originally drilled, and reworking mechanically failed wells. Small localized injection has been used on individual leases. Economics turn on lifting costs, water disposal and the ability to drill relatively shallow wells cheaply enough to justify modest reserves.
Most Hull royalties are small, long-established and slowly declining. The realistic upside is not a flood response but the possibility that an operator drills an infill location or recompletes a well into a bypassed sand on the flank block under your tract, which can lift income for a few years. That optionality has real value, but it is modest and should be measured rather than assumed. At Pointer Minerals we buy minerals and royalties in Liberty County and provide free written offers.
County-level well data, production charts, and selling guides for the counties this field spans:
It is possible. The dome flank holds stacked sands at several depths, and operators periodically drill infill wells or recomplete existing wellbores into bypassed intervals. These are modest wells rather than large ones, so any value they add is incremental and should be weighed against the cost of waiting.
Unleased minerals can still be valuable, particularly inside a producing field, because an operator may need them for a unit or a location. Value depends on tract size, location relative to producing wells and current leasing activity in the area. We evaluate unleased acreage as well as producing royalties.
Once you accept a written offer, a clean transaction typically closes in a few weeks, most of which is title review. Interests that need probate or heirship curative take longer. We tell you upfront what curative we think will be required rather than discovering it after you have signed.