LONG 398

Oil · District 09 · Lease #30535

Operator: KEY ENERGY OF COLORADO, INC.

Cum Oil

69k BBL

Cum Gas

97k MCF

casinghead

Wells

1

Production

2005-10 — 2026-04

Peak Month

2006-12

Production History

Cum Oil: 69,310 BBL Cum Gas: 97,242 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

473 BBL/mo

Di (annual)

11.3%

b-factor

0.0

EUR

50,075 BBL

R-squared

0.306

type

exponential

Operator History (from monthly production reports)

2020-07 — 2026-07 ASSENT ENERGY PARTNERS, LLC 73 mo
2015-04 — 2020-06 EAGLE HYDROCARBONS INC. 63 mo
2014-09 — 2015-03 EAGLE HYDROCARBONS (TEXAS) INC. 7 mo
2013-12 — 2014-08 EAGLE ENERGY ACQUISITIONS LP 9 mo
2005-10 — 2013-11 KEY ENERGY OF COLORADO, INC. 98 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3XASSENT ENERGY PARTNERS, LLC38,4002005-10-07