References for McPhar Geosurveys Ltd:
	Mr. Horacio Cester, General Manager Vintage Petroleum Boliviana Ltd. Centro Emprasarial Equipetrol Piso 4, Av. San Martin No. 1700 Santa Cruz, Bolivia		Ms. Pat Hill, Contracts Officer US Geological Survey APS PO Box 25046 MS204A Denver Federal Center Denver, Colorado 80225, USA
	References for Alcock McPhar Geotech India (P) Ltd:
	Mr D.K. Rawat Directorate General of Hydrocarbons Ministry of Petroleum, Government of India 4th Floor Hindustan Times Building 2, Kasturba Gandhi Marg New Delhi-110001, India		Dr. R.K. Mallick, Dy Head – E & P Jubilant Oil & Gas (Pvt) Ltd. Plot 1A, Sector 16A, Institutional Area, Noida - 201 301 Uttar Pradesh, India