Fred, you don't say what price they want you to lock in at. Also, do you project sharply declining prices due to dropping demand or massive increases in supply? If the former, why would demand crash in the middle of winter? In the latter, where will it come from?
Natural Gas prices have peaked at 10 before, but NEVER in the summer.

http://futures.tradingcharts.com/chart/NG/M
Monthly chart - NG futures (that chart is behind the times it doesn't show the september bar but serves the purpose)

That chart is what we call a 'breakout'. In the early days following a breakout, there is always risk that price fails to hold, and the resulting reversal creates significant selling pressure on the market or commodity.

The thing is... that break out happened last month and its holding up rather well so far.

Looking at shorter time frame charts, I do not, at this time, see such an event happening.  Even if price does reverse significantly and soon, the first thing most energy traders will be expecting to see is for support to hold above 10$.

Long before 10 becomes even a remote possibility this fall/winter, first there are a number of key levels where traders will expect support to hold before price will even have a chance of retreating to 10$, as I noted in another comment thread here this evening.

I find it interesting though only coincidental that NG hit $10 for the first time in Dec 2000 about the same time the Supreme Court appointed Bush.
I am observing behavior that indicates the gas company seriously wants to hedge against falling gas prices. I don't need to know the details of their analysis to see that is what they are doing.

My own assessment of gas supply is irrelevant to all this. I'm an observer of a dog barking in the night.

Fred, perhaps they are hedging against $20 for you, expecting that they will be the ones who have to deal with irate customers? Just a thought. What was the price they offered?
There is an alternative explanation, which is actually 180 degrees from your assessment.  Most public service nat gas utilities are heavily regulated at the retail level, meaning, in order to raise rates they have to go before a public service commission to approve the rate hike.  If they think wholesale gas is going to continue to stay at the high price now, or even go higher, they're going to want to lock you in at that high price now, to hedge against all those customers who don't lock in.  Why?  Because the PSC may decide to implement price celings as a polically palatable solution, and the nat gas utility is going to take a major hit on these customers who are paying artifically lower prices because a rate hike just wasn't going to go over well.  So why not try to scare more "reliable" customers into locking in at a higher rate to offset that possibility?  At least this way they don't lose as much.