Article 50 - Shafts at Oil Wells
- Section 6661 - All Shafts and Equipment
- Section 6662 - Head Frames and Sheaves. [Repealed]
- Section 6663 - Hoists and Hoisting. [Repealed]
- Section 6664 - Hoisting or Lowering of Employees. [Repealed]
- Section 6665 - Ropes and Attachments. [Repealed]
- Section 6666 - Signals. [Repealed]
- Section 6667 - Timbering. [Repealed]
- Section 6668 - Ladders. [Repealed]
- Section 6669 - Ventilation. [Repealed]
- Section 6670 - Storage, Transportation and Use of Explosives. [Repealed]
- Section 6671 - General Safety Precautions. [Repealed]