CHALK, G. O. -D-

Oil · District 08 · Lease #22055

Operator: CONOCOPHILLIPS COMPANY

Cum Oil

157k BBL

Cum Gas

7k MCF

casinghead

Wells

5

Production

1993-01 — 2011-11

Peak Month

2011-05

Production History

Cum Oil: 157,085 BBL Cum Gas: 7,098 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,224 BBL/mo

Di (annual)

79.5%

b-factor

0.2

EUR

41,880 BBL

R-squared

0.428

type

hyperbolic

Operator History (from monthly production reports)

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

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
28CITATION OIL & GAS CORP.24,6002011-10-25
27CITATION OIL & GAS CORP.24,6002011-03-04
24CITATION OIL & GAS CORP.26,5001987-09-16
16CONOCOPHILLIPS COMPANY13,9001983-05-04
17CITATION OIL & GAS CORP.13,9001983-05-04