Potential trade

I have 1000 shares of a natural gas production/distribution company. My basis on the stock is about $28/share, acquired 12/08. It has steadily increased in value and is currently trading at about $60/share. There were dramatic increases at the end of July from $55/share to almost $67/share, but (of course) it has dropped precipitously in the last week. If it were your stock, you could use some cash, but are not cash poor, would you sell some of it, half of it, all of it or sit given the current climate.