P-18 Guides

The P-18, made plain.

Straight answers to the questions saltwater disposal and water-gathering operators actually ask about the Texas RRC Form P-18, the Skim Oil/Condensate Report. Written by the team that files them.

P-18 basics

What is RRC Form P-18? The Skim Oil/Condensate Report, explained

RRC Form P-18 is the monthly Texas Skim Oil/Condensate Report for saltwater disposal and water-gathering operators. Learn what it reports, who files it, and how Rule 56 applies.

5 min read
Step by step

How to file a P-18 in LoneSTAR, step by step

A step-by-step guide to filing the RRC Form P-18 Skim Oil/Condensate Report through the LoneSTAR portal: access, filing rights, completing the report, and the deadline.

6 min read
Deadlines & risk

P-18 deadlines and penalties: what late or faulty filings cost

When the RRC Form P-18 is due, what happens when a filing is late or does not reconcile, and how Statewide Rule 56 exposes unidentifiable hydrocarbons to seizure.

5 min read
Rule 56

Statewide Rule 56 explained: identifiable vs. nonidentifiable hydrocarbons

Texas Statewide Rule 56 (16 TAC §3.56), Scrubber Oil and Skim Hydrocarbons, governs how recovered hydrocarbons are classified as identifiable or nonidentifiable and what gets reported on the P-18.

6 min read
Who files

Who has to file a P-18? SWD and water-gathering operator requirements

Which Texas operators must file the RRC Form P-18: saltwater disposal and water-gathering facilities that recover and then sell or dispose of skim oil or condensate.

5 min read
What changed

The 2024 and 2025 P-18 changes: out-of-state water, BS&W, and online filing

What changed on the Texas RRC Form P-18 in 2024 and 2025: out-of-state water on new section VI(A), consolidated reports on VI(B), BS&W tracking, the May 2024 version requirement, and online filing.

5 min read
Glossary

P-18 glossary: skim oil, BS&W, LoneSTAR, and other terms

Plain-English definitions of the terms on the Texas RRC Form P-18: skim oil, condensate, scrubber oil, identifiable vs. nonidentifiable hydrocarbons, BS&W, LoneSTAR, and more.

4 min read

These guides are informational and reference official Railroad Commission of Texas resources. Emergent Environmental is not affiliated with the Railroad Commission of Texas. Always confirm current requirements in the official P-18 instructions.

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