SPANISH TRAIL 3-10 A15

Oil · District 08 · Lease #59558

Operator: COG OPERATING LLC

Cum Oil

34k BBL

Cum Gas

136k MCF

casinghead

Wells

1

Production

2023-04 — 2026-04

Peak Month

2024-06

Production History

Cum Oil: 33,945 BBL Cum Gas: 136,088 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,067 BBL/mo

Di (annual)

30.0%

b-factor

2.0

EUR

195,120 BBL

R-squared

0.495

type

hyperbolic

Operator History (from monthly production reports)

2023-04 — 2026-07 COG OPERATING LLC 40 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3551HCOG OPERATING LLC212,0002017-05-22