STUMBERG RANCH

Oil · District 01 · Lease #15309

Operator: SN EF MAVERICK, LLC

Cum Oil

2.8M BBL

Cum Gas

10.2M MCF

casinghead

Wells

22

Production

2010-11 — 2026-04

Peak Month

2017-07

Production History

Cum Oil: 2,772,902 BBL Cum Gas: 10,161,405 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

96,295 BBL/mo

Di (annual)

336.9%

b-factor

1.4

EUR

3,233,944 BBL

R-squared

0.491

type

hyperbolic

Operator History (from monthly production reports)

2023-09 — 2026-07 JAVELIN ENERGY PARTNERS MGMT LLC 35 mo
2017-03 — 2023-08 SN EF MAVERICK, LLC 78 mo
2014-09 — 2017-02 ANADARKO E&P ONSHORE LLC 30 mo
2010-11 — 2014-08 ANADARKO E&P COMPANY LP 35 mo

Wells (22)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
16HAJAVELIN ENERGY PARTNERS MGMT LLC18,6002019-10-07
16HCJAVELIN ENERGY PARTNERS MGMT LLC18,6002019-10-07
16HDJAVELIN ENERGY PARTNERS MGMT LLC18,6002019-10-07
16HEJAVELIN ENERGY PARTNERS MGMT LLC18,6002019-10-07
53HJAVELIN ENERGY PARTNERS MGMT LLC18,4002015-11-10
54HJAVELIN ENERGY PARTNERS MGMT LLC18,4002015-11-10
55HJAVELIN ENERGY PARTNERS MGMT LLC18,4002015-11-10
56HJAVELIN ENERGY PARTNERS MGMT LLC18,4002015-11-10
52HRJAVELIN ENERGY PARTNERS MGMT LLC18,5002015-06-03
51HJAVELIN ENERGY PARTNERS MGMT LLC18,5002013-10-28
40HJAVELIN ENERGY PARTNERS MGMT LLC18,5002013-10-25
41HJAVELIN ENERGY PARTNERS MGMT LLC18,5002013-10-25
42HJAVELIN ENERGY PARTNERS MGMT LLC18,5002013-10-25
45HJAVELIN ENERGY PARTNERS MGMT LLC18,5002013-10-25
46HJAVELIN ENERGY PARTNERS MGMT LLC18,5002013-10-25
47HJAVELIN ENERGY PARTNERS MGMT LLC18,5002013-10-25
48HJAVELIN ENERGY PARTNERS MGMT LLC18,5002013-10-25
50HJAVELIN ENERGY PARTNERS MGMT LLC18,5002013-10-25
36HJAVELIN ENERGY PARTNERS MGMT LLC18,8002013-09-10
38HJAVELIN ENERGY PARTNERS MGMT LLC18,8002013-09-10
39HJAVELIN ENERGY PARTNERS MGMT LLC18,8002013-09-10
4HJAVELIN ENERGY PARTNERS MGMT LLC18,0002010-07-21