URBAN "A"

Oil // district 2 // lease#8129

op: COSTILLA PETROLEUM CORPORATION

cum_oil

5k BBL

cum_gas

0 MCF

wells

1

production

1995-09 — 2000-07

peak_month

1998-01

-- production_history

cum_oil: 5,172 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

289 BBL/mo

Di (annual)

915.9%

b-factor

1.2

EUR

3,544 BBL

R-squared

0.784

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2TXO PRODUCTION CORP.75,3502002-01-10
EOF // data source: Texas Railroad Commission // 2026