SHANNON EFS

Oil · District 01 · Lease #16859

Operator: SILVERBOW RESOURCES OPER, LLC

Cum Oil

2.5M BBL

Cum Gas

3.9M MCF

casinghead

Wells

7

Production

2013-06 — 2026-04

Peak Month

2014-10

Production History

Cum Oil: 2,455,659 BBL Cum Gas: 3,940,506 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

74,878 BBL/mo

Di (annual)

167.8%

b-factor

1.1

EUR

2,733,591 BBL

R-squared

0.861

type

hyperbolic

Operator History (from monthly production reports)

2022-07 — 2026-07 SILVERBOW RESOURCES OPER, LLC 49 mo
2013-06 — 2022-06 SEA EAGLE FORD, LLC 109 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7UHSILVERBOW RESOURCES OPER, LLC111,0002017-03-21
6UHSILVERBOW RESOURCES OPER, LLC211,0002017-02-08
4HSILVERBOW RESOURCES OPER, LLC212,6002014-03-12
5HSILVERBOW RESOURCES OPER, LLC212,6002014-03-12
3HSILVERBOW RESOURCES OPER, LLC212,6002013-11-27
2HSILVERBOW RESOURCES OPER, LLC212,6002013-10-18
1HSILVERBOW RESOURCES OPER, LLC210,7902013-04-29