| Chapter 5. Rules of Practice |
| Chapter 10. Oil & Gas Conservation |
| Chapter 15. Fuel Inspection |
| Chapter 16. Antifreeze |
| Chapter 20. Gas & Hazardous Liquid Pipeline Safety |
| Chapter 25. Underground Storage Tanks |
| Chapter 26. Aboveground Storage Tanks |
| Chapter 27. Indemnity Fund |
| Chapter 28. Storage Tank Advisory Council [revoked] |
| Chapter 29. Corrective Action of Petroleum Storage Tank Releases |
| Chapter 30. Motor Carriers, Private Carriers and Transportation Network Companies |
| Chapter 32. Railroads |
| Chapter 35. Electric Utility Rules |
| Chapter 40. Standard Terms of Purchases from Purchasers of 300 KW or Less |
| Chapter 45. Gas Service Utilities |
| Chapter 50. Fuel, Purchased Gas, and Purchased Power Adjustment Clauses |
| Chapter 55. Telecommunications Services |
| Chapter 56. Resellers of Interexchange Telecommunications Services |
| Chapter 57. Operator Service Providers Telecommunications Services |
| Chapter 58. Facilitation and Provisioning of Payphone Service |
| Chapter 59. Oklahoma Universal Service and Oklahoma Lifeline |
| Chapter 60. Extended Area Service/Wide Area Calling Plans (EAS/WACP) [revoked] |
| Chapter 61. Oklahoma E911 Emergency Service Fund |
| Chapter 65. Water Service Utilities |
| Chapter 70. Minimum Standard Filing Requirements in Support of a Request by a Public Utility Doing Business in Oklahoma for a Proposed General Rate Change |
| Chapter 75. Cotton Gin Utilities |
| Chapter 80. Wide Area Calling Plan (WACP) |