What is the Meramec STACK play?

The Meramec is a Mississippian interval on the northern Anadarko shelf of Oklahoma, and STACK, the Sooner Trend in the Anadarko Basin of Canadian and Kingfisher counties, is the multi-zone play it drives. STACK is centered on Canadian, Kingfisher, and Grady counties.

Why is it called STACK?

STACK stands for Sooner Trend, Anadarko Basin, Canadian and Kingfisher counties, and it also describes the geology, a stack of Mississippian intervals, the Meramec and Osage, over the Woodford, all developed from the same acreage.

How are Meramec STACK minerals valued?

A Meramec STACK interest is valued on the income it pays, roughly 36 to 72 times your average monthly royalty check, with the liquids share of production affecting the range. USGS resource figures describe the whole play, not your property. This is an estimate, subject to verification, not an offer.

The Meramec (STACK) formation

Geology, footprint, and mineral-owner context for the Meramec (STACK), drawn from public USGS and state survey sources. Resource figures describe the play as a whole and are not a per-acre value. Every figure on this page is an estimate subject to verification of your specific interest.

Last updated June 2026.

What is the Meramec (STACK)?

The Meramec is the Mississippian-age interval that anchors the STACK play (Sooner Trend, Anadarko Basin, Canadian and Kingfisher counties) on the northern Anadarko shelf of Oklahoma. Stacked with the Osage and Woodford below it, the Meramec drives the multi-zone horizontal development that makes Canadian, Kingfisher, and Grady counties active mineral markets.

The Meramec is the headline target of the STACK play. STACK stands for Sooner Trend, Anadarko Basin, Canadian and Kingfisher counties, and the name itself points to the geology, a stack of Mississippian intervals, the Meramec and Osage, sitting above the Woodford on the northern Anadarko shelf. Operators target several of these zones from the same acreage, which is why STACK tracts in Canadian, Kingfisher, and Grady counties can support multi-well development. Production is generally a mix of oil, gas, and natural gas liquids. For a mineral owner, a Meramec-STACK royalty is valued on the income the wells actually pay, on the standard income multiple, with the liquids share affecting where it lands.

Meramec (STACK) geology

Age and lithology: Mississippian-age (Meramecian) silty, calcareous mudstone and limestone on the northern Anadarko shelf. Source: USGS Anadarko Basin assessment and Oklahoma Geological Survey.
STACK stacking: Developed with the Osage and the deeper Woodford as a stacked, multi-zone play, the source of the STACK name.
Where it produces: Northern Anadarko shelf of Oklahoma: Canadian, Kingfisher, and Grady counties at the core of STACK.

How much oil and gas the Meramec (STACK) holds

The USGS has assessed the Mississippian and associated Anadarko Basin reservoirs, including the Meramec and Osage of the STACK fairway, as part of its Anadarko Basin Province work, reporting substantial continuous oil and gas resources. The figures are undiscovered, technically recoverable play-wide estimates, not proven reserves and not a measure of any individual property.

Source: USGS Anadarko Basin Province assessment; Oklahoma Geological Survey SCOOP-STACK studies.

Counties in the Meramec (STACK) play

These are the counties and parishes we cover where the Meramec (STACK) produces. Each links to local value context and the operators active there.

Canadian County Oklahoma → Grady County Oklahoma → Kingfisher County Oklahoma →

What the Meramec (STACK) means for your minerals

A resource estimate for a play is not the value of your acreage. Your mineral and royalty interest is valued on the income your wells actually pay, roughly 36 to 72 times your average monthly royalty check, the same as 3 to 6 times your annual royalty. Where you land in that band depends on your 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.

The Meramec (STACK) is part of the Anadarko Basin. For the basin-wide value bands and the counties we buy in, see the Anadarko Basin page.

Meramec (STACK) questions

What is the Meramec STACK play?: The Meramec is a Mississippian interval on the northern Anadarko shelf of Oklahoma, and STACK, the Sooner Trend in the Anadarko Basin of Canadian and Kingfisher counties, is the multi-zone play it drives. STACK is centered on Canadian, Kingfisher, and Grady counties.
Why is it called STACK?: STACK stands for Sooner Trend, Anadarko Basin, Canadian and Kingfisher counties, and it also describes the geology, a stack of Mississippian intervals, the Meramec and Osage, over the Woodford, all developed from the same acreage.
How are Meramec STACK minerals valued?: A Meramec STACK interest is valued on the income it pays, roughly 36 to 72 times your average monthly royalty check, with the liquids share of production affecting the range. USGS resource figures describe the whole play, not your property. This is an estimate, subject to verification, not an offer.

Sources

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