Chesapeake Energy (CHK, news, chart, volatility) is active ahead of a two-day analyst meeting that begins on October 15. Shares are getting hit along with the rest of the energy sector after crude oil fell $7.89 to $78.70 a barrel. Investors might also be reacting negatively to news a director sold 200K shares at $24.82 – $25.27. CHK is down $4.24 to $13.47. In the options market, volume is running double the usual. 60,000 puts and 49,000 calls have traeded. The January 15 and October 12.5 puts are the most actives, with more than 22,000 traded and more than 60 percent traidng on the offer. Active trading is also being seen in October 15 calls, January 35 calls, October 20 calls, October 17.5 calls, and November 10 puts.