R.W. SCHULZ, ET AL UNIT

Oil // district 3 // lease#21956

op: TANGLEWOOD OIL & GAS CO.

cum_oil

52k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2026-03

peak_month

1993-03

-- production_history

cum_oil: 52,288 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,332 BBL/mo

Di (annual)

63.0%

b-factor

0.3

EUR

35,989 BBL

R-squared

0.684

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HJENA OPERATING COMPANY, INC.18,9001992-07-21
EOF // data source: Texas Railroad Commission // 2026