What does NNGC stand for?
NNGC stands for "Northern Natural Gas Company"
How to abbreviate "Northern Natural Gas Company"?
"Northern Natural Gas Company" can be abbreviated as NNGC
What is the meaning of NNGC abbreviation?
The meaning of NNGC abbreviation is "Northern Natural Gas Company"
What does NNGC mean?
NNGC as abbreviation means "Northern Natural Gas Company"
