Petroleum Acronyms
OIL & GAS GLOSSARY
HomeGlossarySubmitAbout
Home/Glossary/ATO
Category
Facilities & Process Engineering
In This Category
APICAPVARPAASMEATOAVOAVPB09E
Facilities & Process Engineering

ATO

Definition

Authority to Operate

ATO means Authority To Operate. A check process prior to restarting after a turnaround, when a process facility has been shutdown for a period of time.

✓ Verified term
Suggest a correction

You might also be looking for

TOT
Top of Tubing
AOB
Any Other Business
A53 definitions
Acetyls 5Hull's a5 Acetyls PlantPaper Size 148 X 210mm
Petroleum Acronyms

The comprehensive reference for oil and gas acronyms, abbreviations, and petroleum industry terminology. Used by engineers, geologists, and industry professionals worldwide.

Quick Links

  • Browse Glossary
  • Submit a Term
  • About
  • Contact
  • Privacy Policy
  • Terms of Use

Guides

  • Acronyms 101
  • Drilling Acronyms
  • HSE Terminology
  • Reservoir Engineering
  • Upstream / Midstream / Downstream

Categories

  • Drilling & Wells
  • HSE & Risk
  • Production & Operations
  • Reservoir & Subsurface
  • Marine & Logistics
© 2026 Petroleum Acronyms. All rights reserved.This website is an independent reference resource for oil and gas terminology. Company names and trademarks mentioned belong to their respective owners and are used solely for identification and informational purposes. No affiliation or endorsement is implied.