CHAPARRAL -A-

Oil // district 10 // lease#27294

op: TWO BLACK BEARS OIL, INC.

cum_oil

146k BBL

cum_gas

0 MCF

wells

4

production

1993-01 — 2026-03

peak_month

1993-10

-- production_history

cum_oil: 146,215 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

681 BBL/mo

Di (annual)

4.6%

b-factor

0.0

EUR

159,661 BBL

R-squared

0.785

type

exponential

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4MCCABE ENERGY, INC.15,5002004-07-23
1UNION TEXAS PETROLEUM CORP.27,2001983-02-02
3UNION TEXAS PETROLEUM CORP.15,5001982-11-09
2UNION TEXAS PETROLEUM17,2001981-06-30
EOF // data source: Texas Railroad Commission // 2026