CASTLE

Oil · District 08 · Lease #27052

Operator: R K PETROLEUM CORP.

Cum Oil

45k BBL

Cum Gas

253k MCF

casinghead

Wells

2

Production

1993-01 — 2025-05

Peak Month

1993-03

Production History

Cum Oil: 44,898 BBL Cum Gas: 252,585 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

244 BBL/mo

Di (annual)

7.2%

b-factor

0.3

EUR

47,326 BBL

R-squared

0.624

type

hyperbolic

Operator History (from monthly production reports)

2022-07 — 2026-07 DIAMONDBACK E&P LLC 49 mo
2006-09 — 2022-06 PIONEER NATURAL RES. USA, INC. 190 mo
1993-01 — 2006-08 R K PETROLEUM CORP. 164 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2XDIAMONDBACK E&P LLC19,5001982-04-28
1 XDIAMONDBACK E&P LLC19,3001981-11-25