HUTCHINGS STOCK ASSOC.

Oil // district 10 // lease#15866

op: VANGUARD OPERATING, LLC

cum_oil

254k BBL

cum_gas

0 MCF

wells

24

production

1993-01 — 2026-03

peak_month

1994-02

-- production_history

cum_oil: 254,275 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,477 BBL/mo

Di (annual)

16.6%

b-factor

0.2

EUR

219,128 BBL

R-squared

0.841

type

hyperbolic

-- wells (24)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1THREE-B OIL COMPANY, THE13,5001994-01-05
2THREE-B OIL COMPANY, THE13,5001994-01-05
3THREE-B OIL COMPANY, THE13,5001994-01-05
897CHEVRON U. S. A. INC.13,2241990-12-06
1509CHEVRON U. S. A. INC.23,7001990-08-09
1510CHEVRON U. S. A. INC.23,7001990-08-09
895CHEVRON U. S. A. INC.13,0971990-08-02
1488CHEVRON U. S. A. INC.23,3501990-03-22
679W42-475-10751--------
90142-475-30315--------
907W42-475-30331--------
911W42-475-30339--------
92642-475-30401--------
92842-475-30414--------
94042-475-30427--------
94942-475-30498--------
95042-475-30503--------
951W42-475-30499--------
952W42-475-30504--------
95342-475-30505--------
95442-475-30510--------
95542-475-30515--------
95642-475-30516--------
98842-475-30723--------
EOF // data source: Texas Railroad Commission // 2026