Our DRILLING RIG OIL DERRICKS are up to 140' high self-elevating or 156+' high cantilevered for box-on-box substructures.

CANTILEVERED MASTS have up to a 1,600,000 lb derrick per API Standard 4E with 14 lines strung to the Travelling Block.

For more information about self-elevating and telescoping masts go to the API Masts page.

We manufacture both self-elevating and cantilevered oil derricks / masts at our main US plant.  We periodically use USA made OEM (National® or Emsco®) cantilevered masts.