Antelopus Selan Energy Limited, formerly Selan Exploration Technology Limited, is an India-based company, which is engaged in the business of oil and gas exploration and production. The Company holds a portfolio of oil and gas fields: Bakrol, Lohar and Karjisan, which are located in Gujarat. It also operates four contract areas: two offshore (one each on the West Coast and East Coast of India) and two onshore (one each in Assam and Andhra Pradesh). The Bakrol field is a productive oil field located in the Cambay Basin, around 16 kilometers (kms) south-east of Ahmedabad city, which covers an area of 36 square kilometers (sq. kms). The Bakrol field's reservoir zones are K-VIII and K-IX of the Kalol formation from the Middle Eocene age. The Lohar field is located approximately 35 kms west-north-west of Ahmedabad city, which covers an area of five sq. kms. The Karjisan field covers an area of around five sq. kms, which is located in Ahmedabad-Mehsana tectonic block of the Cambay Basin.