CHALK, G.O.-B-

Oil · District 08 · Lease #41211

Operator: CONOCOPHILLIPS COMPANY

Cum Oil

436k BBL

Cum Gas

90k MCF

casinghead

Wells

13

Production

2011-12 — 2026-04

Peak Month

2015-03

Production History

Cum Oil: 436,080 BBL Cum Gas: 89,616 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,908 BBL/mo

Di (annual)

61.1%

b-factor

2.0

EUR

798,304 BBL

R-squared

0.780

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 (13)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
24CITATION OIL & GAS CORP.15,0002013-02-05
23CITATION OIL & GAS CORP.14,4002012-08-15
21CITATION OIL & GAS CORP.24,6002011-03-21
22CITATION OIL & GAS CORP.14,4002010-09-16
19CITATION OIL & GAS CORP.23,9001987-02-04
17CITATION OIL & GAS CORP.13,1001983-03-30
12CITATION OIL & GAS CORP.23,9001983-03-18
16CITATION OIL & GAS CORP.13,2001980-05-01
16WCITATION OIL & GAS CORP.13,2001980-05-01
142-227-02522CITATION OIL & GAS CORP.------
242-227-00516CITATION OIL & GAS CORP.------
342-227-00497CITATION OIL & GAS CORP.------
542-227-10056CITATION OIL & GAS CORP.------