The Geophysical Log Facility (GLF) is a repository for the geophysical data received from private donations, BEG research projects, and the Railroad Commission of Texas (RRC), which by law receives a copy of geophysical logs from every new, deepened, or plugged well drilled in Texas. These data are available for public viewing and copying, and include wireline electric logs, well records, and scout tickets from hundreds of thousands of wells located in Texas. Well data given by the RRC are also indexed on microfiche files.

Copies of log indexes and well logs are available. Logs are copied on continuous, prefolded paper and cost $2.75 per log + $.50 per linear foot + shipping and handling. Requests for copies can be made in person, by mail, telephone, fax, or email. Mail and fax orders can be made by using the preprinted GLF order form or download and print a PDF version. You will be sent an invoice for your order; cash, check, or credit card are accepted. Copies are sent Fourth Class Mail. First Class or FedEx Overnight service is available at additional cost.