Austin Chalk mineral rights in Karnes County

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What are your Karnes County minerals worth?

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What kind of interest do you own? Not sure Producing — I get monthly or quarterly checks Leased but not producing — bonus paid, no checks yet Not leased / not producing — I just own the minerals I am not sure

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Operator / who sends your checks

Average monthly royalty check (last 3 to 6 months) Prefer not to say $0 (not producing) $1–$100 $100–$500 $500–$2,000 $2,000–$10,000 $10,000+

Your check is the single fastest path to a value range. Fill the acres below instead if you do not get checks.

Net mineral acres

Royalty fraction Not sure 1/8 (12.5%), historical standard3/16 (18.75%), modern standard1/5 (20%), common in the Permian1/4 (25%), hot plays1/6 (16.67%), federal minimum since 2022

Unit size (acres)

Interest type, if you know it Not sure Royalty interest The minerals themselves Overriding royalty (ORRI) Working interest Non-participating royalty (NPRI)

How did you come to own it? Prefer not to say Inherited it Kept (reserved/severed) when family sold the land Purchased it

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The Austin Chalk is one of the formations state oil and gas commission records show producing in Karnes County, Texas. It is not the only zone here: Karnes County also produces from Eagle Ford , which can mean a single tract is paid from more than one producing zone.

Austin Chalk activity in Karnes County

State commission records show 5,011 active oil and gas wells across Karnes County as of the most recent drilling on record, spudded in 2026. These figures describe the whole county, not any one owner's interest.

Operators active in Karnes County

The most active operators in Karnes County by well count, from the state commission. We name operators because the record is public; this is not an endorsement and implies no relationship.

• Marathon Oil (1,455 wells)
• EOG Resources, INC. (1,096 wells)
• Conocophillips Company/Burlington Resources (755 wells)
• Murphy Exploration And Production USA (293 wells)
• Encana Oil & Gas (Usa) INC. (281 wells)

What the Austin Chalk means for your minerals in Karnes County

A formation name on your royalty statement or division order does not change how your interest is valued. What matters is the income your wells actually pay: average your last three to six royalty checks, then apply the standard multiple of 36 to 72 times your average monthly check, the same as 3 to 6 times your annual royalty. Where you land in that band depends on how fast your Karnes County wells decline, the operator, your royalty rate, and any undeveloped drilling upside. For the full method and a free on-screen estimate, see what are my mineral rights worth.

See the full picture for Karnes County , part of Texas, or the Eagle Ford Shale it sits in. For the Austin Chalk's full footprint across every county we cover, see the Austin Chalk formation guide.

Austin Chalk in Karnes County questions

Does the Austin Chalk produce in Karnes County?

Yes. State oil and gas commission records list the Austin Chalk as a producing formation in Karnes County, Texas, part of the Eagle Ford Shale, with 5,011 active wells on record countywide.

What are Austin Chalk mineral rights worth in Karnes County?

Producing interests in Karnes County are valued on the standard income multiple, roughly 36 to 72 times your average monthly royalty check. This is an estimate, subject to verification of your specific interest, not an offer.

Who buys Austin Chalk mineral rights in Karnes County?

Ironwood Royalty buys Austin Chalk mineral and royalty interests in Karnes County directly from owners as a principal buyer, so the offer comes from us and no broker commission is taken from your proceeds.

See what your Karnes County Austin Chalk minerals could be worth

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