CHILSON EST.

Oil · District 09 · Lease #12536

Operator: WINFREY OIL CO., INC.

Cum Oil

123k BBL

Cum Gas

20 MCF

casinghead

Wells

32

Production

1993-01 — 2026-02

Peak Month

2009-07

Production History

Cum Oil: 123,481 BBL Cum Gas: 20 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,650 BBL/mo

Di (annual)

70.2%

b-factor

0.5

EUR

85,673 BBL

R-squared

0.967

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2026-07 R2Q OPERATING LLC 62 mo
2017-07 — 2021-05 WHITE KNIGHT PRODUCTION LLC 47 mo
2012-05 — 2017-06 TXON PARTNERS, LLC 62 mo
2008-01 — 2012-04 TEXAS ENERGY OPERATIONS, LC 52 mo
1994-10 — 2007-12 SISSOM OIL 159 mo
1993-01 — 1994-09 WINFREY OIL CO., INC. 21 mo

Wells (32)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
21R2Q OPERATING LLC12,0002009-09-15
15 SR2Q OPERATING LLC22,0002008-09-02
16 SR2Q OPERATING LLC22,0002008-09-02
14SR2Q OPERATING LLC22,0002008-08-28
17SR2Q OPERATING LLC11,8002008-08-28
18SR2Q OPERATING LLC11,8002008-08-26
19SR2Q OPERATING LLC11,8002008-08-26
12SR2Q OPERATING LLC12,0002008-05-28
10 SR2Q OPERATING LLC12,0002008-05-23
10SR2Q OPERATING LLC12,0002008-05-23
11SR2Q OPERATING LLC12,0002008-05-23
13SR2Q OPERATING LLC12,0002008-05-23
8 SR2Q OPERATING LLC11,8002008-03-19
7SR2Q OPERATING LLC11,8002008-03-18
6 SR2Q OPERATING LLC11,8002007-11-09
5 SR2Q OPERATING LLC11,8002006-10-30
4 SR2Q OPERATING LLC11,9992001-09-12
3 SR2Q OPERATING LLC11,9992000-06-06
2 SR2Q OPERATING LLC11,9992000-03-09
2SR2Q OPERATING LLC11,9992000-03-09
1 SR2Q OPERATING LLC11,9991999-11-09
1SR2Q OPERATING LLC11,9991999-11-09
13R2Q OPERATING LLC11,3001989-05-03
B 1R2Q OPERATING LLC15,2001984-12-27
142-485-01859R2Q OPERATING LLC------
1042-485-11812R2Q OPERATING LLC------
242-485-01860R2Q OPERATING LLC------
3W42-485-01861R2Q OPERATING LLC------
442-485-01862R2Q OPERATING LLC------
542-485-01863R2Q OPERATING LLC------
7W42-485-01865R2Q OPERATING LLC------
842-485-01866R2Q OPERATING LLC------