Certificate of Authorization P-4 (Oil and Gas)
Which purchaser or transporter is authorised to move product off which lease.
What this is
P4A002. The P-4 is the certificate that authorises product to leave a lease and names who may take it. Without an approved P-4 a lease cannot legally sell.
It is the commercial layer over the production data: the same lease keys, plus the purchaser and transporter relationships.
How it is laid out
The Railroad Commission publishes this as EBCDIC (IBM cp037). IBM mainframe encoding (cp037). Opening it as text gives you nonsense; it has to be transcoded first. We mirror the Commission's file exactly as they published it, byte for byte. We have not decoded this one into a table yet, so reading it needs the right tooling.
What we add
See who buys and transports from a lease, trace a purchaser's footprint across the state, and find leases whose authorisation has changed.
- Mirrored so the file is here when the Commission's own link is not.
- Documented — what it is, where it came from, and when we last fetched it.
Worth knowing before you use it
EBCDIC.
A P-4 names authorisation, not actual transactions — an authorised purchaser may take nothing.
EZRRC does not parse this file. Upstream has not built a reader for it yet, so the catalog documents it and links to the Commission's own copy rather than pretending to serve rows it does not have.
The full page lists every trap in this dataset.