CHALK, SLOAN

Oil · District 08 · Lease #41223

Operator: CONOCOPHILLIPS COMPANY

Cum Oil

243k BBL

Cum Gas

87k MCF

casinghead

Wells

18

Production

2011-12 — 2026-04

Peak Month

2013-08

Production History

Cum Oil: 242,881 BBL Cum Gas: 86,717 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,196 BBL/mo

Di (annual)

51.7%

b-factor

1.7

EUR

401,967 BBL

R-squared

0.622

type

hyperbolic

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 (18)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
30CITATION OIL & GAS CORP.14,3002018-07-16
25CITATION OIL & GAS CORP.23,2002011-11-18
29CITATION OIL & GAS CORP.37,9002011-05-03
31CITATION OIL & GAS CORP.44,3502010-09-28
32CITATION OIL & GAS CORP.24,4002010-09-28
28CITATION OIL & GAS CORP.12,6001986-11-18
26CITATION OIL & GAS CORP.12,6001986-11-12
27CITATION OIL & GAS CORP.12,6001986-11-12
24CITATION OIL & GAS CORP.13,2001986-05-27
22WCITATION OIL & GAS CORP.13,4001985-10-30
9CITATION OIL & GAS CORP.12,5901985-07-10
18CITATION OIL & GAS CORP.13,1231979-08-03
1042-227-02094CITATION OIL & GAS CORP.------
1242-227-02096CITATION OIL & GAS CORP.------
16W42-227-10711CITATION OIL & GAS CORP.------
2042-227-30404CITATION OIL & GAS CORP.------
21W42-227-31099CITATION OIL & GAS CORP.------
742-227-02091CITATION OIL & GAS CORP.------