Include exploration & production in NEIIP list, say energy companies.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/ep-firms-seek-ne-fiscal-sops
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/economic-times-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/north-east
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/oil-exploration
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/natural-gas-exploration
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/petrochemical-industry
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-development-north-eastern-region
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hydrogen-energy