This excerpt taken from the CHK 8-K filed Nov 1, 2005.
3. Accounting for Risk Management Activities
The Company is concerned with managing specific risks associated with natural gas price volatility and interest rate movement on floating-rate debt. Authorized personnel, who have appropriate experience, skill level and degree of specialization, participate in the Companys risk management activities. The Company enters into contracts with counterparties deemed by management and the Board of Representatives to be credit worthy, minimizing credit risk exposure.