The company said the well has been logged, and pressure readings, cores and fluid samples have been taken in the Pliocene and Upper Miocene section sands.
The data indicates a discovery with about 90 feet of net oil and gas condensate pay in two sands.
Stone Energy owns around 23% working interest in the project, which is being operated by LLOG Exploration Offshore.
Both the firms plan to further analyze the data from the well and develop a plan which is anticipated to include a sub-sea tie back to an existing facility.
Stone Energy has also reported a discovery on the Taildancer prospect at Ship Shoal 113, with the well encountering 130 feet of net oil and gas pay.
The company, which holds 100% working interest in the project, expects production from the discovery to be on line in the fourth quarter of 2013.
The rig for the deep water San Marcos prospect at Mississippi Canyon 983 is on location and has started drilling.
Stone holds a 25% working interest in the prospect which is operated by Apache Deepwater.
