ROCKER B -M-

Oil · District 7C · Lease #4855

Operator: JM COX RESOURCES, L.P.

Cum Oil

1.1M BBL

Cum Gas

6.2M MCF

casinghead

Wells

47

Production

1993-01 — 2018-10

Peak Month

1993-04

Production History

Cum Oil: 1,099,411 BBL Cum Gas: 6,211,082 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,243 BBL/mo

Di (annual)

5.5%

b-factor

0.0

EUR

1,271,965 BBL

R-squared

0.741

type

exponential

Operator History (from monthly production reports)

2018-09 — 2019-01 DISCOVERY NATURAL RESOURCES LLC 5 mo
2003-10 — 2018-08 JM COX RESOURCES, L.P. 179 mo
1993-11 — 2003-09 COX, JOHN L. 119 mo
1993-01 — 1993-10 GRAHAM ROYALTY, LTD. 10 mo

Wells (47)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
37DISCOVERY NATURAL RESOURCES LLC28,5002021-12-30
43DISCOVERY NATURAL RESOURCES LLC28,5002021-12-30
48DISCOVERY NATURAL RESOURCES LLC17,2001997-11-26
47DISCOVERY NATURAL RESOURCES LLC17,2001997-05-22
46DISCOVERY NATURAL RESOURCES LLC17,2001996-12-02
45DISCOVERY NATURAL RESOURCES LLC17,0001994-09-22
44DISCOVERY NATURAL RESOURCES LLC17,0001991-12-06
42DISCOVERY NATURAL RESOURCES LLC17,2001985-10-23
41DISCOVERY NATURAL RESOURCES LLC17,2001985-09-10
40DISCOVERY NATURAL RESOURCES LLC17,2001985-07-30
38DISCOVERY NATURAL RESOURCES LLC17,4001985-04-22
39DISCOVERY NATURAL RESOURCES LLC17,4001985-04-22
35DISCOVERY NATURAL RESOURCES LLC17,2001984-05-15
36DISCOVERY NATURAL RESOURCES LLC17,2001984-05-15
32DISCOVERY NATURAL RESOURCES LLC17,4001984-03-26
33DISCOVERY NATURAL RESOURCES LLC17,4001984-03-26
34DISCOVERY NATURAL RESOURCES LLC17,3001984-02-16
31DISCOVERY NATURAL RESOURCES LLC17,3001984-02-14
28DISCOVERY NATURAL RESOURCES LLC17,4001983-08-09
29DISCOVERY NATURAL RESOURCES LLC17,4001983-08-09
30DISCOVERY NATURAL RESOURCES LLC17,4001983-08-09
27DISCOVERY NATURAL RESOURCES LLC17,5001983-05-04
8 XDISCOVERY NATURAL RESOURCES LLC17,4001982-04-01
14 XDISCOVERY NATURAL RESOURCES LLC17,5001982-03-03
20 XDISCOVERY NATURAL RESOURCES LLC17,5001982-03-03
9 XDISCOVERY NATURAL RESOURCES LLC17,5001982-03-03
21 XDISCOVERY NATURAL RESOURCES LLC17,5001981-12-31
25 XDISCOVERY NATURAL RESOURCES LLC17,5001981-12-31
4 XDISCOVERY NATURAL RESOURCES LLC17,5001981-11-30
1042-383-10932DISCOVERY NATURAL RESOURCES LLC------
1142-383-10765DISCOVERY NATURAL RESOURCES LLC------
12D42-383-10766DISCOVERY NATURAL RESOURCES LLC------
1342-383-20246DISCOVERY NATURAL RESOURCES LLC------
1542-383-10958DISCOVERY NATURAL RESOURCES LLC------
1642-383-10868DISCOVERY NATURAL RESOURCES LLC------
1742-383-10869DISCOVERY NATURAL RESOURCES LLC------
1842-383-10878DISCOVERY NATURAL RESOURCES LLC------
1942-383-10870DISCOVERY NATURAL RESOURCES LLC------
242-383-10763DISCOVERY NATURAL RESOURCES LLC------
2242-383-10960DISCOVERY NATURAL RESOURCES LLC------
2342-383-10961DISCOVERY NATURAL RESOURCES LLC------
2442-383-10962DISCOVERY NATURAL RESOURCES LLC------
2642-383-10963DISCOVERY NATURAL RESOURCES LLC------
342-383-10786DISCOVERY NATURAL RESOURCES LLC------
542-383-10788DISCOVERY NATURAL RESOURCES LLC------
642-383-10789DISCOVERY NATURAL RESOURCES LLC------
742-383-10931DISCOVERY NATURAL RESOURCES LLC------