CHALK-DUNCAN

Oil · District 08 · Lease #2720

Operator: CONOCOPHILLIPS COMPANY

Cum Oil

858k BBL

Cum Gas

165k MCF

casinghead

Wells

16

Production

1993-01 — 2011-11

Peak Month

2003-08

Production History

Cum Oil: 858,003 BBL Cum Gas: 165,487 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,058 BBL/mo

Di (annual)

30.3%

b-factor

0.9

EUR

618,346 BBL

R-squared

0.868

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 (16)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
15CITATION OIL & GAS CORP.13,3001989-05-02
16CITATION OIL & GAS CORP.13,3001989-05-02
12CITATION OIL & GAS CORP.13,3001988-05-06
10CITATION OIL & GAS CORP.13,3001988-05-02
11CITATION OIL & GAS CORP.13,3001988-05-02
13CITATION OIL & GAS CORP.13,3001988-05-02
14CITATION OIL & GAS CORP.13,3001988-05-02
142-227-00985CITATION OIL & GAS CORP.------
242-227-00988CONOCOPHILLIPS COMPANY------
342-227-00986CITATION OIL & GAS CORP.------
442-227-00990CITATION OIL & GAS CORP.------
542-227-00991CITATION OIL & GAS CORP.------
642-227-10551CITATION OIL & GAS CORP.------
742-227-10552CITATION OIL & GAS CORP.------
842-227-10553CITATION OIL & GAS CORP.------
942-227-10674CONOCOPHILLIPS COMPANY------