DEAVER (CADDO CONGL) UNIT

Oil · District 09 · Lease #19402

Operator: WHISKEY RIVER OIL & GAS LLC

Cum Oil

251k BBL

Cum Gas

586k MCF

casinghead

Wells

31

Production

1993-01 — 2026-04

Peak Month

2024-07

Production History

Cum Oil: 251,364 BBL Cum Gas: 585,667 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,323 BBL/mo

Di (annual)

10.6%

b-factor

0.7

EUR

242,740 BBL

R-squared

0.569

type

hyperbolic

Operator History (from monthly production reports)

2025-11 — 2026-07 SCHALK OIL COMPANY, INC. 9 mo
2023-02 — 2025-10 CROCKETT OPERATING, LLC 33 mo
2019-07 — 2023-01 WHISKEY RIVER OIL & GAS LLC 43 mo
2002-11 — 2019-06 CD CONSULTING & OPERATING CO. 200 mo
2002-04 — 2002-10 DEVON ENERGY OPERATING CO., L.P. 7 mo
2001-01 — 2002-03 MITCHELL ENERGY COMPANY L.P. 15 mo
1993-01 — 2000-12 MITCHELL ENERGY CORPORATION 96 mo

Wells (31)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
606SCHALK OIL COMPANY, INC.26,3002006-06-14
5011SCHALK OIL COMPANY, INC.36,1002005-02-24
5011 USCHALK OIL COMPANY, INC.36,1002005-02-24
508SCHALK OIL COMPANY, INC.26,1002004-08-18
503SCHALK OIL COMPANY, INC.26,0501985-07-16
502 USCHALK OIL COMPANY, INC.36,0001985-03-04
602 USCHALK OIL COMPANY, INC.26,1001985-03-04
5012SCHALK OIL COMPANY, INC.26,2001983-04-28
605 USCHALK OIL COMPANY, INC.36,1001982-11-08
605USCHALK OIL COMPANY, INC.36,1001982-11-08
608 USCHALK OIL COMPANY, INC.26,3001982-10-12
607SCHALK OIL COMPANY, INC.16,3001982-06-24
202SCHALK OIL COMPANY, INC.26,2001980-02-29
5010SCHALK OIL COMPANY, INC.26,1001980-02-27
5010 USCHALK OIL COMPANY, INC.26,1001980-02-27
504SCHALK OIL COMPANY, INC.36,1001979-11-28
604SCHALK OIL COMPANY, INC.25,8001979-10-04
301SCHALK OIL COMPANY, INC.26,1001979-08-06
603SCHALK OIL COMPANY, INC.16,1001979-06-08
501SCHALK OIL COMPANY, INC.16,1001979-05-31
501WSCHALK OIL COMPANY, INC.16,1001979-05-31
601SCHALK OIL COMPANY, INC.16,1001979-05-31
1WSSCHALK OIL COMPANY, INC.12,5001979-05-17
509SCHALK OIL COMPANY, INC.16,2001979-05-02
509 USCHALK OIL COMPANY, INC.16,2001979-05-02
507 USCHALK OIL COMPANY, INC.16,5001977-09-28
701 USCHALK OIL COMPANY, INC.16,2501977-09-21
506SCHALK OIL COMPANY, INC.16,0001977-07-27
10142-497-81131SCHALK OIL COMPANY, INC.------
201 C42-497-00998SCHALK OIL COMPANY, INC.------
50542-497-01032SCHALK OIL COMPANY, INC.------