McDermott International Inc. was awarded a large contract by Saudi Arabian Oil Co. and Total SA subsidiary Total Raffinage Chimie for work on a mixed feed cracker for the Amiral petrochemical complex in Saudi Arabia.

Under the contract, McDermott will provide licenses, a basic engineering package, extended basic engineering, training and technical services. McDermott's technology arm Lummus Technology LLC will provide licensing and engineering services along with proprietary technology.

The contract is valued between $50 million and $250 million, according to an Oct. 22 news release from the Houston-based company.

Saudi Aramco and Total were earlier reported to be planning to build the petrochemical complex, which is targeted to supply more than $4 billion of downstream derivative and specialty chemical units. McDermott said the mixed feed cracker will be one of the largest in the world.