SHELL-PERKINS

Oil · District 08 · Lease #28453

Operator: MARALO, LLC

Cum Oil

204k BBL

Cum Gas

385k MCF

casinghead

Wells

10

Production

1993-01 — 2026-04

Peak Month

1993-04

Production History

Cum Oil: 204,478 BBL Cum Gas: 384,918 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,108 BBL/mo

Di (annual)

9.2%

b-factor

0.0

EUR

143,324 BBL

R-squared

0.586

type

exponential

Operator History (from monthly production reports)

2023-03 — 2026-07 HIGHMARK ENERGY OPERATING, LLC 41 mo
2013-01 — 2023-02 LEGACY RESERVES OPERATING LP 122 mo
2004-12 — 2012-12 COG OPERATING LLC 97 mo
1999-01 — 2004-11 MARALO, LLC 71 mo
1993-01 — 1998-12 MARALO, INC. 72 mo

Wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10HIGHMARK ENERGY OPERATING, LLC110,0002005-12-05
9HIGHMARK ENERGY OPERATING, LLC19,5001986-03-27
8HIGHMARK ENERGY OPERATING, LLC19,5001985-03-12
7HIGHMARK ENERGY OPERATING, LLC19,5001984-12-28
5HIGHMARK ENERGY OPERATING, LLC19,5001984-08-17
6HIGHMARK ENERGY OPERATING, LLC19,5001984-08-17
4HIGHMARK ENERGY OPERATING, LLC19,5001984-03-16
3HIGHMARK ENERGY OPERATING, LLC19,5001984-03-06
2HIGHMARK ENERGY OPERATING, LLC19,5001983-12-28
1HIGHMARK ENERGY OPERATING, LLC19,5001983-08-23