ELSA UNIT

Oil // district 1 // lease#12847

op: WILLIS DRILLING CO., INC.

cum_oil

55k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 1999-11

peak_month

1993-01

-- production_history

cum_oil: 55,477 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,855 BBL/mo

Di (annual)

45.5%

b-factor

0.4

EUR

78,962 BBL

R-squared

0.907

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HTUSKAR (TEXAS), INC.210,2002007-03-27
EOF // data source: Texas Railroad Commission // 2026