Oklahoma 2018

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OKLAHOMA: PRODUCTION FORECAST 46 | November 2018 | thick and deep, providing opportunities for mul- tiple landing zones. Relatively high silica content results in good fracture propagation. Total organic content is from 1% to 14%, and thermal maturities increase to the west, in line with structural features. The Springer Shale is a younger and shallower formation that has gained significant attention recently as a result of Continental's recent reports of stellar well results and announcements for increasing rig counts. The Springer Shale has a true vertical depth of about 11,000 ft. The Springer Shale is thinner than the Woodford. Hence, Conti- nental's future development plans in the Springer area also include development of the Sycamore. Other notable operators in the Scoop include New- field Exploration and Marathon Oil. The Stack The Stack play remains a compelling opportunity in spite of the recent buzz over the Springer Shale. Several operators are active in the play and infra- structure for water and takeaway is located nearby. Hence, the play contains the attributes to support ongoing development. The Stack is located north- west of the Scoop in Grady, Canadian, Kingfisher and Dewey counties. Vertical depths range from 6,500 ft in the east to more than 15,000 ft in the western flank of the play. As in the Scoop, the Woodford Shale is the pri- mary source rock. The secondary resource is the Meramec. Results are strongest in areas containing an adequate gas-drive mechanism, a feature that follows close to the sweet spot highlighted in Fig- ure 4. Other targets within the Stack include the Hunton and Osage groups, and the Oswego Lime- stone. Multiple producing intervals and natural fracturing provide upside potential. Leading oper- ators in the Stack include Continental Resources, Cimarex, Devon and Newfield. Scoop/Stack sweet spots In the Scoop/Stack, pronounced sweet spots are easily spotted in Figure 4. Star performing wells with peak daily production rates of at least 800 boe/d (MVPs) are colored in red, and All-Stars, the second-best category are colored in orange. The Scoop sweet spot cuts across southern Grady County from the northwest to southeast into Garvin County. Looking north to the Stack play, the area in northwest Canadian County appears to contain the tightest cluster of top performing wells. In both the Scoop and Stack, effective areal extents of true sweet spots appear limited. That said, one should expect this given the lognormal distribution of natural resources. Oklahoma wells Figure 5 captures producing wells in the Anadarko Basin, according to productive categories with col- ors ranging from red to light blue, generating a heat map, where the red indicates MVP wells, or those with peak production rates of 800-plus boe/d, as Chesapeake has 806,000 acres (97% HBP) in the Midcontinent region. (Photo courtesy of Chesapeake Energy Corp.)

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