HOUSE, E.

Oil · District 8A · Lease #5741

Operator: YOST OIL COMPANY

Cum Oil

393k BBL

Cum Gas

22 MCF

casinghead

Wells

13

Production

1993-01 — 2026-04

Peak Month

1999-10

Production History

Cum Oil: 392,678 BBL Cum Gas: 22 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,367 BBL/mo

Di (annual)

7.9%

b-factor

0.0

EUR

351,851 BBL

R-squared

0.845

type

exponential

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
2013-01 — 2017-05 MERIT ENERGY COMPANY 53 mo
2006-05 — 2012-12 CIMAREX ENERGY CO. OF COLORADO 80 mo
2002-04 — 2006-04 GRUY PETROLEUM MANAGEMENT CO. 49 mo
2000-03 — 2002-03 PRIZE OPERATING COMPANY 25 mo
1996-06 — 2000-02 VISTA RESOURCES, INC. (A) 45 mo
1993-01 — 1996-05 YOST OIL COMPANY 41 mo

Wells (13)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
15GRAYROCK ENERGY II, LLC33,0002006-10-11
14GRAYROCK ENERGY II, LLC12,0001997-07-14
11WGRAYROCK ENERGY II, LLC12,0001997-06-12
13WGRAYROCK ENERGY II, LLC12,0001997-06-12
8GRAYROCK ENERGY II, LLC12,0001997-06-12
10GRAYROCK ENERGY II, LLC11,9001996-08-06
12GRAYROCK ENERGY II, LLC11,9001996-08-06
9WGRAYROCK ENERGY II, LLC11,9001996-07-15
142-415-02044GRAYROCK ENERGY II, LLC------
342-415-04236GRAYROCK ENERGY II, LLC------
442-415-04237GRAYROCK ENERGY II, LLC------
642-415-01893GRAYROCK ENERGY II, LLC------
742-415-01894GRAYROCK ENERGY II, LLC------