Performance bond

　　date :______________

　　to :________________

　　dear sirs,

　　performance guarantee for contract no:_______

　　title:______________

　　________(company name)

　　that in consideration of (hereinafter referred to as 'npog') entering into a contract for the construction, commissioning and handover of field surface facilities.('contract') dated________ day of________ ________with________ hereinafter referred to as 'contractor (s)'''we, ________a company incorporated under the laws of ________with a principal business address at________(hereinafter referred to as ' guarantor') do hereby enter into the following undertakings with npog:

　　(a) guarantee full and complete performance of all obligations of contractor(s) under the said contract and all change orders thereunder and amendments thereof which may