WELLS · TEXAS · ONE ROW PER API NUMBER

Castlerock EF Operating LLC wells

Every well on the Railroad Commission's schedule or with a drilling permit on file, newest permit first: who operates it, where it is, the field it is completed in, its permits, and the last month its lease reported.What an API number is →

A full API number opens the well. Anything else filters the list below.

21 wells match

Well logs are the ones loaded into Petrora from the regulators' log indexes. A log's kind is the regulator's description of it; a digital log is a LAS file of curves. Each well's page lists its logs and links to the regulator for the files.

Texas reports production by lease, so a well carries no volumes of its own: "Last reported" is the last month the lease it is tied to reported. How Texas production is reported →

21 WELLS · PAGE 1 OF 1

These wells on a map →
WellOperatorCounty, fieldStatusDepth, ftPermitPermitsLast reported
Y-Bar #150HHZ42-311-37499Castlerock EF Operating LLC McMullenEagleville (Eagle Ford-1)ActiveOil9,695Sep 25, 20241Aug 2026
Y-Bar 160H Unit #160HHZ42-311-37500Castlerock EF Operating LLC McMullenEagleville (Eagle Ford-1)ActiveOil9,680Sep 25, 20242Aug 2026
Y-Bar #110HHZ42-283-37637Castlerock EF Operating LLC La SalleEagleville (Eagle Ford-1)Shut inOil9,641Mar 20, 20241Aug 2026
Y-Bar #120HHZ42-283-37638Castlerock EF Operating LLC La SalleEagleville (Eagle Ford-1)Shut inOil9,607Mar 20, 20241Aug 2026
Y-Bar #130HHZ42-283-37639Castlerock EF Operating LLC La SalleEagleville (Eagle Ford-1)Shut inOil9,642Mar 20, 20241Aug 2026
Y-Bar #140HHZ42-283-37640Castlerock EF Operating LLC La SalleEagleville (Eagle Ford-1)Shut inOil9,649Mar 20, 20242Aug 2026
Y-Bar 170H Unit #170HHZ42-311-37493Castlerock EF Operating LLC McMullenEagleville (Eagle Ford-1)ActiveOil9,741Mar 20, 20242Aug 2026
Y-Bar a #180HHZ42-311-37494Castlerock EF Operating LLC McMullenEagleville (Eagle Ford-1)ActiveOil9,717Mar 20, 20242Aug 2026
CRX Ybar #9HHZ42-311-37412Castlerock EF Operating LLC McMullenEagleville (Eagle Ford-1)ActiveOil9,994Sep 1, 20231Aug 2026
CRX Ybar E #10HHZ42-311-37413Castlerock EF Operating LLC McMullenEagleville (Eagle Ford-1)ActiveOil10,008Sep 1, 20231Aug 2026
CRX Ybar #8HHZ42-311-37411Castlerock EF Operating LLC McMullenEagleville (Eagle Ford-1)ActiveOil9,977Aug 30, 20231Aug 2026
CRX Ybar B #5HHZ42-283-37311Castlerock EF Operating LLC La SalleEagleville (Eagle Ford-1)ActiveOil9,613Aug 23, 20222Aug 2026
CRX Ybar C #6HHZ42-283-37312Castlerock EF Operating LLC La SalleEagleville (Eagle Ford-1)ActiveOil9,620Aug 23, 20222Aug 2026
CRX Ybar D #7HHZ42-283-37313Castlerock EF Operating LLC La SalleEagleville (Eagle Ford-1)ActiveOil9,646Aug 23, 20222Aug 2026
CRX Ybar a #4HHZ42-283-37310Castlerock EF Operating LLC La SalleEagleville (Eagle Ford-1)ActiveOil9,560Aug 22, 20222Aug 2026
CRX Ybar #1HHZ42-311-37216Castlerock EF Operating LLC McMullenEagleville (Eagle Ford-1)ActiveOil9,749Mar 16, 20223Aug 2026
CRX Ybar #2HHZ42-311-37217Castlerock EF Operating LLC McMullenEagleville (Eagle Ford-1)ActiveOil9,756Mar 16, 20223Aug 2026
CRX Ybar #3HHZ42-311-37218Castlerock EF Operating LLC McMullenEagleville (Eagle Ford-1)ActiveOil9,776Mar 16, 20223Aug 2026
Y Bar MCM #b 1HHZ42-311-35428Castlerock EF Operating LLC McMullenEagleville (Eagle Ford-1)Shut inOil9,738May 9, 20131Feb 2025
Y-Bar Unit a #1HHZ42-311-35413Castlerock EF Operating LLC McMullenEagleville (Eagle Ford-1)ActiveOil9,609May 6, 20131Aug 2026
Y Bar MCM #a 1HHZ42-311-35384Castlerock EF Operating LLC McMullenEagleville (Eagle Ford-1)Shut inOil9,741Apr 12, 20131Feb 2025

About this data

One row per API number: every well on the Railroad Commission wellbore schedule, and every API number a drilling permit names. Operator, field, status, and dates are the schedule's where it lists the well, the latest permit's otherwise. Permits on file counts every permit and amendment. Texas reports production by lease, so a well shows the last month its lease reported and no volumes. Nothing is estimated.

Developers: this page as JSON is GET /v1/data/wells?state=tx, documented in the API reference.