CHALK, G. O. -E-

Oil · District 08 · Lease #18991

Operator: CONOCOPHILLIPS COMPANY

Cum Oil

310k BBL

Cum Gas

64k MCF

casinghead

Wells

11

Production

1993-01 — 2011-11

Peak Month

1995-10

Production History

Cum Oil: 309,915 BBL Cum Gas: 64,328 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,995 BBL/mo

Di (annual)

6.1%

b-factor

0.0

EUR

372,110 BBL

R-squared

0.575

type

exponential

Operator History (from monthly production reports)

2003-01 — 2012-04 CONOCOPHILLIPS COMPANY 112 mo
1993-01 — 2002-12 CONOCO INC. 120 mo

Wells (11)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
24CITATION OIL & GAS CORP.23,2501988-04-26
24LCITATION OIL & GAS CORP.23,2501988-04-26
7CITATION OIL & GAS CORP.23,2151984-03-14
21CITATION OIL & GAS CORP.23,2501982-07-23
19CITATION OIL & GAS CORP.13,1501980-06-05
10W42-227-10074CONOCOPHILLIPS COMPANY------
1142-227-10075CONOCOPHILLIPS COMPANY------
1742-227-30492CONOCOPHILLIPS COMPANY------
442-227-02518CITATION OIL & GAS CORP.------
842-227-00508CITATION OIL & GAS CORP.------
9 L42-227-00504CONOCOPHILLIPS COMPANY------