CHALK, G. O.-A-

Oil · District 08 · Lease #41210

Operator: CONOCOPHILLIPS COMPANY

Cum Oil

156k BBL

Cum Gas

53k MCF

casinghead

Wells

10

Production

2011-12 — 2026-04

Peak Month

2015-03

Production History

Cum Oil: 156,275 BBL Cum Gas: 52,657 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,435 BBL/mo

Di (annual)

13.3%

b-factor

0.7

EUR

226,589 BBL

R-squared

0.693

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 (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
21CITATION OIL & GAS CORP.14,3002014-07-10
21LCITATION OIL & GAS CORP.14,3002014-07-10
21UCITATION OIL & GAS CORP.14,3002014-07-10
14CITATION OIL & GAS CORP.27,9002013-11-21
20CITATION OIL & GAS CORP.14,3002013-10-17
13CITATION OIL & GAS CORP.14,1001984-08-02
12CITATION OIL & GAS CORP.23,0501980-08-28
11CITATION OIL & GAS CORP.13,1501977-09-06
1042-227-31070CITATION OIL & GAS CORP.------
942-227-10054CITATION OIL & GAS CORP.------