it seems Jamnagar has something to do with Crude and Petrol,
Farmers of Thavaria and Moda village , which are 20kms from Jamnagar reported Crude oil is coming out of water well in their farms, nearby villages like Alia bada, Moda , theba etc do have reported the same incident.
This oil is supposed to come from a leakage in I.O.C pipeline near this farms, however Regional I.O.C. officers declined this assumption, which leads to a theory that there is crude oil deposit beneath this wells ( and that also can be extracted from normal water table level ) :)
It would be ideal to send the Oil to Laboratory and analyse the results