Chaparral Energy

Energizing America’s Heartland

Chaparral leverages our expertise and low-cost structure to unlock reservoirs deep beneath Oklahoma's historic, oil-rich landscape.

Focused primarily on our leasehold in Oklahoma’s fast-growing STACK Play, we are creating significant economic and shareholder value. Our more than 127,000 STACK acres provide access to the Oswego, Meramec, Osage and Woodford formations — a robust inventory that will fuel our company for decades to come.

Producing these resources, however, requires highly trained experts. Our talented employees have the knowledge and expertise needed to decipher each formation’s unique geologic and productive characteristics as we continue to find innovative, cost-efficient ways to recover these previously untapped oil and gas deposits.

an image of Potential Production Reserves 1 Billion + BOE
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STACKed Plays That Pay Off

Our Focus


The highly economical STACK Play in central Oklahoma is home to several oil and gas formations that sit stacked atop one another. These formation layers are vertically stacked hundreds to even thousands of feet on top of each other, creating overlapping layers known as “stacked pays.”

Stacked pays allow operators, such as Chaparral, access to drill multiple formations from a single location. With the ability to drill multiple horizontal wells from a single vertical wellbore, the STACK provides excellent cost efficiencies, improved oil and gas recoveries and an overall smaller surface footprint.

Chaparral has approximately 127,000 net surface acres with stacked-pay potential in the Oswego, Meramec, Osage, Woodford and Hunton formations.


Exploration & Production

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an image of operation exploration & production STACK

The geographic area referred to as the STACK is located primarily below portions of Blaine, Canadian, Garfield, Kingfisher and Major counties in central Oklahoma. This area is home to multiple oil-rich reservoirs that are stacked vertically, including the Oswego, Meramec, Osage, Woodford and Hunton formations. 

This stacking of plays allows Chaparral to effectively recover oil and gas from multiple formations using pad drilling, well spacing techniques and other operational efficiencies, which result in significant cost savings, reduced environmental impacts and extremely profitable operations.  

Key Facts:

  • Net Acres: 127,000
  • Potential Recovery: More than 900 MMBoe
  • Daily Q3 2018 Production: 15,663 Boe/d
an image of operation exploration & production Meramec/Osage

The Meramec and Osage intervals of the Mississippian are two of the deeper oil-saturated reservoirs found just above the Woodford formation.

To date, Meramec development has centered primarily in Oklahoma’s Kingfisher, Blaine and Canadian counties. Activity is, however, increasing in Garfield, Major and Dewey counties as STACK operators, such as Chaparral, continue to expand the boundaries of the lucrative STACK Play. 

an image of operation exploration & production Oswego

Chaparral has a significant leasehold position in the Oswego. Historically a vertical target, horizontal drilling and hydraulic fracturing technologies are unlocking previously unrecovered reserves of this mid-Pennsylvania-age carbonate play.

Our first horizontal Oswego well was drilled in 2013 and is expected to produce more than 1.5 million barrels of oil equivalent during its lifetime. At vertical depths of only 6,000 to 7,000 feet, the Oswego yields extremely attractive economic results.

an image of operation exploration & production Woodford

The Woodford Shale is the key hydrocarbon source for several productive regions across Oklahoma, including the STACK and is also an attractive drilling target itself.

The formation has been the source for multiple productive regions including the STACK, SCOOP and areas within the Arkoma Basin. The Woodford continues to be one of Oklahoma’s most active and historically prolific formations.

an image of operation exploration & production Other Areas

Chaparral has additional E&P operations in Oklahoma and Texas in the Anadarko Basin and Miss Lime and Marmaton plays. With more than 100,000 net acres, these historic operations continue to provide steady production and future development opportunities.

Key Facts:

  • Net Acres: More than 100,000
  • Potential Recovery: 145 MMBoe

Operational Results

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an image of 2018 Production Mix: 61% liquids and 39% natural gas
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