HYATT -K-

Oil · District 08 · Lease #31803

Operator: PIONEER NATURAL RES. USA, INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

91k BBL

Cum Gas

240k MCF

casinghead

Wells

1

Production

1993-01 — 2026-04

Peak Month

1996-12

Production History

Cum Oil: 90,601 BBL Cum Gas: 240,025 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

402 BBL/mo

Di (annual)

4.5%

b-factor

0.1

EUR

100,601 BBL

R-squared

0.678

type

hyperbolic

Operator History (from monthly production reports)

2023-06 — 2026-07 OVINTIV USA INC. 38 mo

2019-06 — 2023-05 BLACK SWAN OPERATING, LLC 48 mo

1997-09 — 2019-05 PIONEER NATURAL RES. USA, INC. 261 mo

1995-03 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 30 mo

1993-01 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 26 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-317-33520	OVINTIV USA INC.	1	9,600	1988-03-16