CHALK, MARY

Oil · District 08 · Lease #19033

Operator: CONOCOPHILLIPS COMPANY

Cum Oil

642k BBL

Cum Gas

188k MCF

casinghead

Wells

29

Production

1993-01 — 2011-11

Peak Month

1995-10

Production History

Cum Oil: 642,308 BBL Cum Gas: 187,939 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,347 BBL/mo

Di (annual)

22.8%

b-factor

0.7

EUR

678,869 BBL

R-squared

0.951

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 (29)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
47CITATION OIL & GAS CORP.13,2002009-06-26
79CITATION OIL & GAS CORP.23,5002008-08-05
76CITATION OIL & GAS CORP.23,3001993-07-02
76WCITATION OIL & GAS CORP.23,3001993-07-02
80CITATION OIL & GAS CORP.13,3001993-06-11
66CONOCOPHILLIPS COMPANY33,9001988-03-18
75CONOCOPHILLIPS COMPANY13,2001987-02-13
70CITATION OIL & GAS CORP.13,2001986-04-29
68WCONOCOPHILLIPS COMPANY13,4001985-10-18
67WCITATION OIL & GAS CORP.13,4001985-10-17
62CONOCOPHILLIPS COMPANY13,1001983-07-28
63CITATION OIL & GAS CORP.13,1001983-07-28
64CITATION OIL & GAS CORP.13,1001983-07-28
65CITATION OIL & GAS CORP.13,1001983-07-28
60CITATION OIL & GAS CORP.13,1001983-02-15
61CITATION OIL & GAS CORP.13,1001983-02-15
1142-227-02150CITATION OIL & GAS CORP.------
1242-227-02003CITATION OIL & GAS CORP.------
1342-227-02151CITATION OIL & GAS CORP.------
1442-227-02002CITATION OIL & GAS CORP.------
1542-227-02152CONOCOPHILLIPS COMPANY------
1642-227-03454CITATION OIL & GAS CORP.------
1742-227-02153CITATION OIL & GAS CORP.------
1942-227-02009CITATION OIL & GAS CORP.------
2042-227-04318CONOCOPHILLIPS COMPANY------
38W42-227-30219CONOCOPHILLIPS COMPANY------
39W42-227-30322CONOCOPHILLIPS COMPANY------
41W42-227-30345CITATION OIL & GAS CORP.------
5042-227-30456CONOCOPHILLIPS COMPANY------