The Tishomingo Field is an oil and gas field in the Ardmore Basin of south-central Oklahoma, roughly between Oklahoma City and Dallas and approximately 13 miles east of Interstate 35. It is also the center of Kolibri Global Energy Inc.’s operations.
Kolibri holds working interests in approximately 17,700 net acres at Tishomingo and operates nearly every well it drills there. All of the company’s current production comes from the field, primarily from the Caney Shale, a concentration which is central to Kolibri’s development strategy. Rather than divide its capital and operating attention among unrelated properties, the company is developing one contiguous acreage block where it already has production, infrastructure, drilling experience and a substantial inventory of additional locations.
A Position Built Over Nearly Two Decades
Kolibri’s history at Tishomingo began well before its current Caney Shale development program. Between 2007 and 2012, the company drilled or participated in approximately 40 Woodford Shale gas wells in the field. That work generated subsurface data and operating experience that helped establish the company’s understanding of the acreage.
In 2013, Kolibri sold its Tishomingo Woodford assets to XTO Energy Inc., a subsidiary of Exxon Mobil, for approximately $146.4 million in cash. The company retained its interests in the slightly shallower Caney and Upper Sycamore formations. Those retained formation rights underpin Kolibri’s current development of the Caney Shale at Tishomingo.
Why a Concentrated Acreage Block Matters
Shale development depends heavily on repetition as each well provides information that can influence the design, placement and execution of the next one. At Tishomingo, Kolibri can apply those lessons across one operated block rather than across a collection of disconnected properties. Roads, pads and other surface infrastructure developed for earlier wells often support later drilling. The company’s geological and operating knowledge also carries from one location to the next.
That accumulated experience has helped Kolibri shorten drilling times and reduce well costs even as it has moved from one-mile to 1.5-mile laterals. The company’s operating improvements are examined in greater detail in “Longer Laterals, Faster Wells: Kolibri’s Approach to Shale Drilling Cost Reduction.”
Control of the acreage also gives Kolibri substantial influence over well design, drilling sequence and the timing of capital deployment. A non-operating owner often has very little control over those decisions.
The Significance of Held-by-Production Acreage
More than 99% of Kolibri’s Tishomingo acreage is held by production, which is a lease provision that extends an energy company’s mineral rights past the initial primary term, continuing as long as the property produces a minimum commercial amount of oil or gas. Because of such provisions, Kolibri does not face the pressure to drill simply to prevent large portions of its acreage from expiring. In turn, that gives the company greater flexibility to align its field development program with commodity prices, available capital and expected well economics.
Held-by-production status does not eliminate operating or financial constraints since Kolibri must still consider oil and gas prices, service availability, permitting, working-interest partners and access to capital, but it does reduce the extent to which lease expirations dictate the drilling schedule.
Existing Production and Infrastructure
Kolibri currently has 45 Caney wells on production at Tishomingo with infrastructure that supports continued development. A natural gas gathering system lies within one mile of every proved drilling location in the company’s reserve report. Oil is transported from the field by truck, while natural gas and natural gas liquids enter the gathering system. The proximity of that infrastructure can reduce the additional construction required to bring new wells into production.
What Remains to Be Drilled
Kolibri’s December 31, 2025 reserve report, prepared by independent evaluator Netherland, Sewell & Associates, Inc., identifies 89 gross additional Caney locations at a density of six wells per section.
That inventory consists of:
- 48 proved locations
- 24 probable locations
- 17 possible locations
Most of the remaining Caney locations are expected to use 1.5-mile or two-mile laterals.
The inventory gives Kolibri a multiyear runway within the formation that already accounts for its current production. It also allows the company to continue applying the drilling and completion knowledge accumulated from its existing wells.
Additional Potential Within the Same Acreage
The Caney is not the only horizon Kolibri is evaluating at Tishomingo. The same acreage contains additional intervals, including the False Caney, the T-Zone and the Sycamore. These formations are not included in the company’s current booked drilling inventory, but they could provide additional development opportunities if future testing supports commercial production.
Because Kolibri already controls the acreage, success in one or more of these intervals could expand the field’s potential without requiring the company to acquire a separate property or establish operations in a new basin.
Why Tishomingo Is Central to Kolibri
Kolibri’s strategy is often described in terms of longer laterals, faster drilling and funding development from operating cash flow. Tishomingo is the asset that makes that strategy possible.
The field combines current production, a largely held-by-production lease position, existing infrastructure, an operated and contiguous acreage block, 89 additional booked Caney locations and several formations that remain under evaluation.
For Kolibri, Tishomingo is the company’s operating platform, its current drilling inventory and the source of its principal opportunities for future development.
Sources: Kolibri Global Energy annual filings for the year ended December 31, 2025 (SEC EDGAR; acreage, production concentration, Woodford Sale terms, held-by-production status, and marketing arrangements); Kolibri company history at kolibrienergy.com (Woodford well count and sale history); Oklahoma Geological Survey presentation materials (field location relative to Interstate 35); Kolibri Global Energy July 2026 investor presentation (well count, acreage, and infrastructure); Form 51-101F1 Statement of Reserves Data for the year ended December 31, 2025, dated March 17, 2026, prepared by Netherland, Sewell & Associates, Inc. (reserve location counts).
