FRYMIRE WATERFLOOD UNIT

Oil · District 7B · Lease #26877

Operator: ROVER PETROLEUM OPERATING, LLC

Cum Oil

431k BBL

Cum Gas

100k MCF

casinghead

Wells

21

Production

1993-05 — 2026-04

Peak Month

1996-11

Production History

Cum Oil: 430,682 BBL Cum Gas: 99,899 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,583 BBL/mo

Di (annual)

21.2%

b-factor

0.1

EUR

287,193 BBL

R-squared

0.880

type

hyperbolic

Operator History (from monthly production reports)

2024-01 — 2026-07 GRAYROCK ENERGY II, LLC 31 mo
2017-06 — 2023-12 ROVER PETROLEUM OPERATING, LLC 79 mo
2011-12 — 2017-05 MERIT ENERGY COMPANY 66 mo
2009-05 — 2011-11 PLANTATION OPERATING, LLC 31 mo
2004-03 — 2009-04 L.C.S. PRODUCTION COMPANY 62 mo
1999-09 — 2004-02 COCKRELL PRODUCTION CO., INC. 54 mo
1996-11 — 1999-08 NORTHLAND OPERATING COMPANY 34 mo
1993-05 — 1996-10 ENEXCO, INC. 42 mo

Wells (21)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
24GRAYROCK ENERGY II, LLC16,8002005-02-23
23GRAYROCK ENERGY II, LLC26,8002005-02-07
21GRAYROCK ENERGY II, LLC36,8002003-11-17
22GRAYROCK ENERGY II, LLC16,8002002-08-15
12GRAYROCK ENERGY II, LLC25,3452001-05-15
19AGRAYROCK ENERGY II, LLC15,3501998-04-09
20GRAYROCK ENERGY II, LLC15,3001998-04-08
18GRAYROCK ENERGY II, LLC15,3001997-05-20
17GRAYROCK ENERGY II, LLC15,3501996-08-30
15GRAYROCK ENERGY II, LLC35,4001996-07-10
14GRAYROCK ENERGY II, LLC15,4001995-10-13
11GRAYROCK ENERGY II, LLC15,5001988-09-13
10GRAYROCK ENERGY II, LLC15,5001985-12-02
9GRAYROCK ENERGY II, LLC15,5001985-08-21
6GRAYROCK ENERGY II, LLC16,3001984-10-30
5GRAYROCK ENERGY II, LLC16,2001984-05-23
4GRAYROCK ENERGY II, LLC16,4061983-11-28
1GRAYROCK ENERGY II, LLC37,0001983-04-04
2GRAYROCK ENERGY II, LLC17,3001982-11-17
3GRAYROCK ENERGY II, LLC16,9001982-10-28
7GRAYROCK ENERGY II, LLC26,8001978-09-19