STUMBERG RANCH UNIT C

Oil · District 01 · Lease #18657

Operator: SN EF MAVERICK, LLC

Cum Oil

1.0M BBL

Cum Gas

4.1M MCF

casinghead

Wells

14

Production

2015-10 — 2026-04

Peak Month

2017-08

Production History

Cum Oil: 1,031,005 BBL Cum Gas: 4,149,121 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

73,271 BBL/mo

Di (annual)

421.0%

b-factor

0.9

EUR

924,992 BBL

R-squared

0.951

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
2015-10 — 2017-02 ANADARKO E&P ONSHORE LLC 17 mo

Wells (14)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
15HJAVELIN ENERGY PARTNERS MGMT LLC17,9002014-11-25
11HJAVELIN ENERGY PARTNERS MGMT LLC17,9002014-11-21
12HJAVELIN ENERGY PARTNERS MGMT LLC17,9002014-11-21
13HJAVELIN ENERGY PARTNERS MGMT LLC17,9002014-11-21
14HJAVELIN ENERGY PARTNERS MGMT LLC17,9002014-11-21
10HJAVELIN ENERGY PARTNERS MGMT LLC27,9002014-10-02
1HJAVELIN ENERGY PARTNERS MGMT LLC27,9002014-10-02
2HJAVELIN ENERGY PARTNERS MGMT LLC27,9002014-10-02
3HJAVELIN ENERGY PARTNERS MGMT LLC27,9002014-10-02
4HJAVELIN ENERGY PARTNERS MGMT LLC27,9002014-10-02
5HJAVELIN ENERGY PARTNERS MGMT LLC27,9002014-10-02
6HJAVELIN ENERGY PARTNERS MGMT LLC27,9002014-10-02
7HJAVELIN ENERGY PARTNERS MGMT LLC27,9002014-10-02
8HJAVELIN ENERGY PARTNERS MGMT LLC27,9002014-10-02