LIEURANCE

Oil // district 10 // lease#30517

op: THREE SPAN OIL & GAS, INC.

fields: HAMCO (TUBB)

cum_oil

500k BBL

cum_gas

0 MCF

wells

3

production

1993-01 — 2026-03

peak_month

1994-09

-- production_history

cum_oil: 499,670 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,293 BBL/mo

Di (annual)

6.7%

b-factor

0.7

EUR

552,502 BBL

R-squared

0.878

type

hyperbolic

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4BANKS, R. C.14,2001986-02-10
2BANKS, R. C.14,2001985-09-12
1BANKS, R. C.24,2001985-06-14
EOF // data source: Texas Railroad Commission // 2026