DUKE 40

Oil · District 08 · Lease #43922

Operator: OXYROCK OPERATING, LLC

Cum Oil

136k BBL

Cum Gas

529k MCF

casinghead

Wells

2

Production

2013-01 — 2026-04

Peak Month

2013-05

Production History

Cum Oil: 136,479 BBL Cum Gas: 529,042 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,668 BBL/mo

Di (annual)

119.3%

b-factor

0.8

EUR

177,208 BBL

R-squared

0.862

type

hyperbolic

Operator History (from monthly production reports)

2024-08 — 2026-07 OXYROCK OPERATING, LLC 24 mo
2013-01 — 2024-07 CROWNQUEST OPERATING, LLC 139 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2OXYROCK OPERATING, LLC112,0002012-10-04
1OXYROCK OPERATING, LLC111,9002012-01-23