CHALK, G. O. -C-

Oil · District 08 · Lease #41213

Operator: CONOCOPHILLIPS COMPANY

Cum Oil

736k BBL

Cum Gas

111k MCF

casinghead

Wells

26

Production

2011-12 — 2026-04

Peak Month

2016-12

Production History

Cum Oil: 735,867 BBL Cum Gas: 110,535 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,590 BBL/mo

Di (annual)

5.1%

b-factor

0.0

EUR

1,207,458 BBL

R-squared

0.405

type

exponential

Operator History (from monthly production reports)

2018-02 — 2026-07 CITATION OIL & GAS CORP. 102 mo
2011-12 — 2018-01 CONOCOPHILLIPS COMPANY 74 mo

Wells (26)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
40LCITATION OIL & GAS CORP.14,5502015-06-02
40UCITATION OIL & GAS CORP.14,5502015-06-02
32CITATION OIL & GAS CORP.14,5002014-10-16
36CITATION OIL & GAS CORP.14,8002012-07-10
37CITATION OIL & GAS CORP.14,8002012-06-20
33CITATION OIL & GAS CORP.14,8002012-06-12
35CITATION OIL & GAS CORP.14,8002012-06-12
31CITATION OIL & GAS CORP.24,6002012-01-18
30CITATION OIL & GAS CORP.24,5002011-10-24
26CITATION OIL & GAS CORP.23,3001994-04-07
28CITATION OIL & GAS CORP.44,1751994-04-07
29CITATION OIL & GAS CORP.33,4251988-05-24
5BWCITATION OIL & GAS CORP.13,3501988-05-20
7BCITATION OIL & GAS CORP.13,2001988-05-18
8BCITATION OIL & GAS CORP.13,2001988-05-18
23WCITATION OIL & GAS CORP.23,2501980-08-28
24CITATION OIL & GAS CORP.13,2501980-06-02
25CITATION OIL & GAS CORP.13,2001980-06-02
1742-227-30003CITATION OIL & GAS CORP.------
1BW42-227-00987CITATION OIL & GAS CORP.------
20W42-227-30326CITATION OIL & GAS CORP.------
2142-227-30333CITATION OIL & GAS CORP.------
2BW42-227-00989CITATION OIL & GAS CORP.------
542-227-02530CITATION OIL & GAS CORP.------
842-227-00507CITATION OIL & GAS CORP.------
942-227-10060CITATION OIL & GAS CORP.------