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Well 257, OLD OCEAN UNIT, Brazoria County, Texas

API 03933044 — recorded on 3 leases.

Well API 03933044 is recorded on the OLD OCEAN UNIT lease in Brazoria County, Texas, operated by HILCORP ENERGY COMPANY. The state files a total depth of 12,403 ft, a last completion filed Jul 29 2025 and 3 drilling permits. The state holds no plugging record for it.

No plugging record filedOn the RRC proration scheduleSave
Total depth
12,403 ft
Last completion
Jul 29 2025
as filed
Leases
3
Records
3
wellbore filings

Leases

LeaseWell no.OperatorFieldSchedule
OLD OCEAN UNIT257HILCORP ENERGY COMPANYOLD OCEAN (LARSEN)Off
OLD OCEAN UNIT257HILCORP ENERGY COMPANYOLD OCEAN (ARMSTRONG)Off
OLD OCEAN UNIT257HILCORP ENERGY COMPANYOLD OCEAN (F-25)On

The hole

Total depth
12,403 ft
Casing strings
15
Deepest casing
12,592 ft
Survey
KEEP, I
Abstract
79
Block / section
42
Plugging records
not filed
Bottom hole location
29.04251, -95.70849
29.04251, -95.70849 · NAD83, as filed

Drilling permits

From the Railroad Commission's drilling permit master — the application record, not a record of drilling. A permit is an application the Commission filed and numbered; the spud date is the only field here that says a hole was started. This file carries no approval status, so none is shown.

Permits
3
First issued
May 20 2010
to Aug 20 2025
With a spud date
3
last Feb 5 2013
Deepest permitted
13,000 ft
as applied for
PermitIssuedTypeLeaseDepthSpud
909592Aug 20 2025RecompletionOLD OCEAN UNITno. 25712,403 ftJun 7 2010
755415Jan 28 2013RecompletionOLD OCEAN UNITno. 25712,403 ftFeb 5 2013
696228May 20 2010DrillOLD OCEAN UNITno. 25713,000 ftJun 19 2010

What the lease produced

Texas reports oil and gas by lease, never by wellbore, so this is the whole lease. Values are volume multiplied by the published monthly price, the same arithmetic the lease page shows in full.