SHULER

Oil · District 8A · Lease #61487

Operator: WATUSI ENERGY LLC

Cum Oil

328k BBL

Cum Gas

101k MCF

casinghead

Wells

5

Production

1993-01 — 2026-04

Peak Month

1994-06

Production History

Cum Oil: 328,041 BBL Cum Gas: 100,956 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,700 BBL/mo

Di (annual)

9.7%

b-factor

0.0

EUR

207,793 BBL

R-squared

0.782

type

exponential

Operator History (from monthly production reports)

2021-12 — 2026-07 BLACK ARROW OPERATING, LLC 56 mo
2020-12 — 2021-11 WATUSI ENERGY LLC 12 mo
1993-01 — 2020-11 LARIO OIL & GAS COMPANY 335 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5BLACK ARROW OPERATING, LLC17,5001996-11-15
4WBLACK ARROW OPERATING, LLC17,2001977-06-13
142-415-30591BLACK ARROW OPERATING, LLC------
242-415-30841BLACK ARROW OPERATING, LLC------
342-415-30846BLACK ARROW OPERATING, LLC------