Eagle Ford & Woodbine Oil Investments: South Texas's Light Sweet Crude Play for Accredited Investors

The Eagle Ford Shale is a calcareous marine shale deposited during the Cretaceous period, approximately 85–95 million years ago. It underlies approximately 400 miles of South Texas at depths ranging from 4,000 to 14,000 feet, with the most prolific oil-producing windows in the 8,000–12,000 foot range in counties including Webb, LaSalle, McMullen, and DeWitt.

The Eagle Ford's geological character differs meaningfully from the Wolfcamp. It is a naturally fractured formation with higher carbonate content, which affects completion design — Eagle Ford wells typically require different proppant loading and stage spacing than Wolfcamp wells. Initial production rates in oil-window Eagle Ford wells have historically been strong, but decline rates in early years are often steeper than Permian horizontals, which affects the distribution profile investors should expect.

For investors evaluating Eagle Ford programs, the key geological due diligence question is: what 'window' does the proposed well target? The Eagle Ford has three primary production windows — oil, condensate, and gas — determined by depth and thermal maturity. Oil-window wells generate the most tax-advantaged investor economics; gas and condensate windows have different price dynamics and potentially lower depletion benefit relative to gross income.

The Woodbine Formation in East Texas is a Cretaceous sandstone that has been producing oil since the discovery of the massive East Texas Oil Field in 1930 — the largest conventional oil reservoir ever found in North America. Modern Woodbine programs focus on the Woodbine's unconventional reservoirs in North Texas (Stephens, Palo Pinto, and surrounding counties), where horizontal drilling has opened new production zones inaccessible by vertical wells. Woodbine horizontal programs in North Texas have lower initial production rates than Permian Basin Wolfcamp programs, but may have lower AFE costs per well — making the investment economics per dollar deployed potentially comparable despite lower gross production. For investors evaluating Woodbine programs, the key comparison is well-level economics: net revenue per dollar invested, not gross production rate alone.

Texas Oil Investments may facilitate access to Eagle Ford and Woodbine programs through our industry partner network when specific opportunities meet our evaluation criteria. Both formations are fully covered by the Texas Railroad Commission database, which provides the same independent verification capability that makes Texas programs uniquely transparent compared to non-Texas basins. For any Eagle Ford or Woodbine program we introduce investors to, we apply the same evaluation framework as Permian programs: development well in proven formation, operator RRC verification, and independent reserve engineer validation.

Texas Oil Investments does not operate wells, manage funds, or act as a broker-dealer. Our role is to help accredited investors understand Eagle Ford and Woodbine oil investments, provide education around the opportunity, and facilitate introductions to vetted projects through our network of experienced energy industry partners. The operators and energy sponsors we work with structure and manage the investments, bringing decades of technical expertise. Our focus is access, education, and strategic connections — helping investors evaluate opportunities with experienced professionals while maintaining full transparency about our role.