PIERCE ESTATES, INC.

Oil // district 3 // lease#12650

op: VINTAGE PETROLEUM, INC.

cum_oil

513k BBL

cum_gas

0 MCF

wells

20

production

1993-01 — 2026-03

peak_month

1996-04

-- production_history

cum_oil: 513,482 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,257 BBL/mo

Di (annual)

5.7%

b-factor

0.0

EUR

445,108 BBL

R-squared

0.479

type

exponential

-- wells (20)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
96MCGOWAN WORKING PARTNERS, INC.15,4002010-08-30
61MCGOWAN WORKING PARTNERS, INC.15,3952004-01-23
01MCGOWAN WORKING PARTNERS, INC.26,2002003-10-30
84MCGOWAN WORKING PARTNERS15,3601998-04-16
68MCGOWAN WORKING PARTNERS15,3951996-03-18
52MCGOWAN WORKING PARTNERS15,4251996-03-15
58BASS ENTERPRISES PRODUCTION CO.15,3651985-08-30
88BASS ENTERPRISES PRODUCTION CO.15,4001985-08-30
3242-481-81219--------
3342-481-03098--------
4042-481-03170--------
4242-481-03091--------
4742-481-03099--------
4842-481-03175--------
6442-481-03136--------
7042-481-03138--------
7842-481-03127--------
8342-481-03143--------
8542-481-03139--------
9142-481-03083--------
EOF // data source: Texas Railroad Commission // 2026