The Dukhan Oil Field is situated on the Dukhan anticline, a group of folds which runs in a NNW to SSE direction parallel with the western coast. The Dukhan anticline, with its thin lengthened structure and moderately steep dips stands out from the greater part of the neighboring folds. This has prompted some geologists to associate its formation with deep-seated salt movement. The overall length of the anticline is roughly 80 km above the lowest closing contour. Jebel Nakhsh lies at the southern boundary of the anticline. The Dukhan anticline demonstrates a range in the extremity of folding of along its length, the folding of the northern part being more pronounced than the southern.