HYVL UNIT

Oil · District 03 · Lease #13880

Operator: XTO ENERGY INC.

Fields: CALDWELL (AUSTIN CHALK)

Cum Oil

33k BBL

Cum Gas

662k MCF

casinghead

Wells

2

Production

1993-01 — 2018-08

Peak Month

1995-03

Production History

Cum Oil: 32,735 BBL Cum Gas: 661,925 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

742 BBL/mo

Di (annual)

60.9%

b-factor

0.6

EUR

31,509 BBL

R-squared

0.786

type

hyperbolic

Operator History (from monthly production reports)

2019-06 — 2022-10 CHESAPEAKE OPERATING, L.L.C. 41 mo

2017-01 — 2019-05 WILDHORSE RESOURCES MNGT CO, LLC 29 mo

2007-07 — 2016-12 XTO ENERGY INC. 114 mo

2001-12 — 2007-06 DOMINION OKLAHOMA TEXAS E&P, INC 67 mo

2000-07 — 2001-11 DREYFUS, LOUIS NATURAL GAS CORP 17 mo

1997-02 — 2000-06 COSTILLA ENERGY, INC. 41 mo

1996-06 — 1997-01 COSTILLA PETROLEUM CORPORATION 8 mo

1995-02 — 1996-05 PARKER & PARSLEY PRODUCING L.P. 16 mo

1994-10 — 1995-01 PARKER & PARSLEY DEVELOPMENT L.P 4 mo

1994-04 — 1994-09 BRIDGE OIL COMPANY, L. P. 6 mo

1993-01 — 1994-03 SANTA FE ENERGY RESOURCES, INC. 15 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1H	42-051-33443	CHESAPEAKE OPERATING L.L.C.	2	9,600	1994-09-15
1	42-051-31072	CHESAPEAKE OPERATING L.L.C.	1	9,000	1980-10-09

HYVL UNIT

Production HistoryBeta Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]

Decline Curve Analysis

Operator History (from monthly production reports)

Wells (2)

Production History