WINDHAM -24-

Oil · District 08 · Lease #39181

Operator: OVINTIV USA INC.

Cum Oil

17k BBL

Cum Gas

40k MCF

casinghead

Wells

4

Production

2009-04 — 2017-09

Peak Month

2015-04

Production History

Cum Oil: 17,262 BBL Cum Gas: 40,317 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

295 BBL/mo

Di (annual)

643.6%

b-factor

0.4

EUR

899 BBL

R-squared

0.428

type

hyperbolic

Operator History (from monthly production reports)

2020-02 — 2026-07 OVINTIV USA INC. 78 mo
2015-02 — 2020-01 ENCANA OIL & GAS(USA) INC. 60 mo
2014-01 — 2015-01 ATHLON HOLDINGS LP 13 mo
2013-09 — 2013-12 ATHLON ENERGY OPERATING LLC 4 mo
2012-11 — 2013-08 ATLANTIC EXPLORATION, LLC 10 mo
2009-04 — 2012-10 ATLANTIC OPERATING, INC. 43 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4ATLANTIC OPERATING INC.19,8001990-10-03
3OVINTIV USA INC.19,4501982-03-25
2OVINTIV USA INC.19,4501982-02-23
1OVINTIV USA INC.19,4501982-02-02