EOG Moves Austin Chalk Development into South Texas, Blending with Eagle Ford, Q2 2026

Status of Austin Chalk leasing and how Chalk will be integrated into South Texas development vs. Eagle Ford (legacy assets)

1) Current status: EOG says it has “leased up the majority” of the Austin Chalk sweet spot

• EOG reports it “identified and leased about 60,000 acres in the Austin Chalk,” describing it as “truly a sweet spot.” ¹
• Management indicates they believe they have “leased up the majority of the sweet spot,” which is why they are discussing it now. ¹
• The company also states it has “organically leased 60,000 net acres for an average cost of $1,200 per acre.” ²
• EOG notes it acquired the acreage primarily through “organic leasing” (with “maybe some small acquisitions” as well). ¹

Bottom line: leasing is already substantially completed for the core sweet-spot acreage; EOG is now in the stage of expanding/confirming development details rather than aggressively leasing new acreage (though it still says it is “continue to gather data and evaluate its extent”). ¹²

2) What they’ve proven so far (to justify integration into development plans)

• As of the initial Chalk update, EOG says it has drilled about “12” high-return wells confirming strong economics and achieving “payouts of less than 1 year” with “returns … over 100% at $65 WTI.” ¹
• In a subsequent update, EOG says it has “since drilled 20 net wells on the acquired acreage,” again noting “less than 1-year payout at $65 WTI.” ²
• EOG characterizes Chalk as an extension “southeast of our Eastern Eagle Ford acreage.” ¹
• It describes Chalk as “a little bit more down dip in the Eagle Ford,” “a little more deeper and mature,” and “a more combo play with more associated gas,” while “total liquids yields” are “very comparable to the Eagle Ford proper.” ¹

Bottom line: EOG is treating Chalk as development-viable because early drilling results meet its hurdle economics and liquids performance is described as comparable to Eagle Ford proper. ¹²

3) Leasing/inventory impact: Chalk adds drilling inventory to South Texas over the next handful of years

• EOG says the identified sweet spot contains about “125 remaining 2-mile locations,” which “adds about 1 additional full year of drilling inventory” at current pace to its San Antonio division. ¹
• Management also says they “confidently identified 1 year’s worth of 2-mile lateral inventories at current Eagle Ford activity levels.” ²

Bottom line: integration is quantified: Chalk is expected to extend the drilling inventory clock by about one additional year at current activity levels (within the San Antonio division). ¹²

4) Integration approach: “feathering” Chalk into South Texas development alongside Eagle Ford proper

When asked about capital allocation and planning, management frames Chalk as being treated similarly to core Eagle Ford development, rather than as a standalone, separate program requiring fundamentally different capital allocation.

• On whether leasing is essentially done: management explains they leased up most of the sweet spot and therefore are able to talk about it now. ¹
• On planning and allocation across South Texas: management says capital allocation for Chalk will be “equally within our core Eagle Ford development,” because they’re discussing “a sweet spot,” and it will be “pretty much in the mix” of “our standard Eagle Ford and Austin Chalk proper core development.” ³
• They further state the “Austin Chalk proper core development” is expected to “develop over the next handful of years.” ³
• In response to the question about capital allocation being driven by “structural elements” in the legacy foundation “in the Eagle Ford,” management still treats Chalk as part of the core Eagle Ford development program mix (i.e., not displacing or being contrasted as a fundamentally different allocation framework). ⁴³

Bottom line: EOG’s stated integration method is operationally blended into the Eagle Ford development program (“in the mix”), with capital allocation treated “equally” within core Eagle Ford development rather than as a separate legacy-vs-nonlegacy capital framework. ³⁴

5) Comparison: Chalk vs. Eagle Ford and other legacy assets (how management positions the difference)

EOG positions the Chalk addition as a play extension/adjacent opportunity that leverages technical capabilities developed in Eagle Ford and other divisions.

• EOG says the Chalk integration is “another great example” of its decentralized culture where each division seeks “play extensions or bypass pay.” ³
• It emphasizes leveraging operational/technical expertise: they used “high-temperature, high-pressure operations from Dorado” and applied “a lot of our learnings there to really push it forward” in Chalk. ³
• It also states the Chalk sweet spot achieved strong returns and “benefit[s] from our learnings in other basins.” ²
• For the legacy foundation / “core Eagle Ford asset,” EOG indicates Chalk is competitively economic with payout under one year at $65 WTI and returns over 100%, while Eagle Ford proper is characterized as having liquids yields “very comparable.” ¹²

Bottom line: while Chalk is described geologically as a down-dip, deeper/more mature “combo play” with more associated gas, EOG’s planning stance is that economics and liquids performance are competitive with Eagle Ford proper and that Chalk is operationally enabled by cross-basin know-how (including Dorado learnings), so it fits into the core development portfolio rather than operating as an isolated legacy-competing asset. ¹³²

6) Practical interpretation of “leasing status” for future plans

Based on the excerpts, EOG’s leasing posture for Austin Chalk appears to be:

• Mostly completed for the sweet spot: “leased up the majority of the sweet spot” (and ~60,000 net acres leased). ¹²
• Still evaluating extent/data: despite the “majority” leasing conclusion, EOG says they are “continue to gather data and evaluate its extent.” ²¹
• Development integration next: inventory identified (125 remaining 2-mile locations; ~1 year drilling inventory at current pace) is what drives integration into development plans “over the next handful of years.” ¹³²

So, EOG is not signaling a new “big leasing campaign” in the excerpt; instead, it is signaling a shift from leasing to development optimization/scale-up within the Eagle Ford program framework. ³¹²