KEYSTONE

Oil · District 08 · Lease #45515

Operator: RSP PERMIAN, LLC

Cum Oil

3.4M BBL

Cum Gas

4.6M MCF

casinghead

Wells

9

Production

2014-04 — 2026-04

Peak Month

2018-06

Production History

Cum Oil: 3,368,087 BBL Cum Gas: 4,567,897 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

108,868 BBL/mo

Di (annual)

315.4%

b-factor

1.5

EUR

4,304,401 BBL

R-squared

0.914

type

hyperbolic

Operator History (from monthly production reports)

2018-08 — 2026-07 COG OPERATING LLC 96 mo
2014-04 — 2018-07 RSP PERMIAN, LLC 52 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1009HCOG OPERATING LLC112,0002017-02-21
1010HCOG OPERATING LLC112,0002017-02-21
1008HCOG OPERATING LLC112,0002017-02-17
1007HCOG OPERATING LLC112,0002016-12-19
1005HCOG OPERATING LLC112,0002016-12-15
1006HCOG OPERATING LLC112,0002016-12-15
1004LSCOG OPERATING LLC112,0002014-08-16
1004MSCOG OPERATING LLC112,0002014-08-16
1003LSCOG OPERATING LLC112,0002013-12-16