Natural Gas Companies That Trade On US Markets
EP - El Paso
APA - Apache Corp.
XTO - XTO Energy
MCF - One of my favorites mentioned awhile ago on StockRake. Contango Oil and Gas
DNR - Denbury Resources
EOG - EOG Resources
BEXP - Brigham Exploration
Natural Gas Royalty Trusts

PBT - Permian Basin Royalty Trust
SJT - San Juan Basin Royal Trust
DOM - [...]