Barclays Natural Resource Investments, a division of Barclays Bank, is to team up with the Qatar Asset Management Company to form a joint investment partnership.Under the partnership terms agreed, the Qatar Asset Management Company (QAMC) will co-invest $250m in Barclays Natural Resource Investments (BNRI) current and future portfolio companies, of which a substantial proportion will be allocated to BNRI's existing $2.1bn portfolio of companies. QAMC is a collaboration between the Qatar Financial Centre Authority and the Qatar Investment Authority.BNRI, a global private equity business focused on natural resource investment opportunities, will continue to source, execute, manage and exit private equity transactions in the natural resources sectors on a global basis and co-investors will be invited to participate immediately upon completion of each transaction, a statement from Barclays said. JH