Amendment and Extension. This Agreement may not be amended or extended except by an instrument in writing signed on behalf of each of the parties hereto.
Appears in 11 contracts
Samples: Employment Agreement (Cimarex Energy Co), Employment Agreement (Key Production Co Inc), Employment Agreement (Cimarex Energy Co)
Amendment and Extension. This Agreement may not be amended or extended except by an instrument in writing signed Signed on behalf of each of the parties hereto.
Appears in 2 contracts
Samples: Employment Agreement (Cimarex Energy Co), Employment Agreement (Key Production Co Inc)
Amendment and Extension. This Agreement may not be amended or extended except by an instrument in writing signed on behalf of by each of the parties hereto.
Appears in 1 contract
