foreverlovex hit the nail on the head - it's just bad luck that they locked into a forward contract 3 mths back (for now) when crude prices were way high. Take a look at another way - not locking into oil forwards means that you're
speculating on the market. Yah, everyone's cursing at the "wrong hedge", but what if spot crude is now at USD$200/barrel?
However in reality, given that forward contracts are often used in speculating on the oil market (and since gas is linked to oil) - hedging through forwards might not necc. provide you with a true hedge against gas prices. But then again, it's the public that they are dealing with - can they (rather, we) afford to take the risk through actively managing our gas requirements? All it takes is just 1 wrong bet, and we will curse and swear like mad.
(edited this part for clarity: I'm using oil as an example, but gas prices are very much linked to oil, so it's the same idea. my brain isn't working..

)
So at the end of the day, probably best for them to stick to existing arrangements. My POV though. It'll only be for 3 months (hopefully!)
I think you're referring to options and not forward contracts - there is a difference. Options are "insurance premiums" that you pay to be able to buy/sell an underlying, at a particular price (termed as the strike price), sometime in the future (exercise date). In your scenario - you are able to forgo the option (just throw it away) because you merely bought a
right to buy/sell the underlying at strike price.
On the other hand, forward contracts are
real contracts that you enter with another counterparty to buy/sell an underlying at a specified price in the future. There is no way to "forgo" a forward, because you have the obligation to make good your promise.
Only way to offset this would be to unwind the forward, by entering into another forward contract with the same terms, but on the opposite direction. There is no way to "forgo" the contract just like that.