We are not experts; but merely a group of MBA alumni who exercise our freedom of expression with a humble hope that our views may help MBA aspirants make more effective applications, avoiding certain mistakes we did. Do familiarize yourself with T&C the 'About Us' section.
Getting back to your query - do read a thread of MBA in Oil and gas viewtopic.php?f=3&t=105
I feel that your choice for the MBA in Oil and Gas is more of a convenience-based decision, as you feel that you have an assured job in that sector. If this were not true, would you still go for it? Your past work experience and skills perhaps point towards a general MBA or MBA specialized in construction / civil industry.
Secondly, even if you wish to target the Energy sector, the employers seldom demand an MBA specialized in Oil and Gas. It's a plus; not a requisite.
The MBA program by S.P. Jain in Dubai suits you better. Dubai offers a mix of construction and Oil and Gas. Checkout http://www.spjain.org/