. . . . . . . "1986 privatization of British Gas" . . "privatization" . . "British Gas" . . "BG" . . . . . . . . "British Natural Gas" . . . . "British Gas Corporation" . . . . . . "Gas Board" . "Gas Council" . . . . "British Gas#1973\u20131986" . . . . . . . . . . "1997" . . . . . . . . . . "1986" . . . . . . . . "British Gas" . .