The world's largest gold miner, Barrick Gold ( TSX: ABX )(NYSE: ABX), remains attractive with first quarter of 2014 all-in sustaining costs of $833 per ounce, while Goldcorp (TSX: G)(NYSE: GG) reported all-in sustaining costs of $840 per ounce. Both also have solid balance sheets and a diverse range of mine projects, which will allow them to boost production and cash in on higher gold prices over the longer term. Another company that stands out is Agnico Eagle ( TSX: AEM )( NYSE: AEM ), which in conjunction with Yamana Gold ( TSX: YRI )( NYSE: AUY ), acquired Canada's largest gold mine, the Malartic mine, when it acquired 50% of Osisko Mining. The company reported impressive first-quarter all-in sustaining costs of $799 per ounce and is set to benefit from the acquisition, with the Malartic mine being one of Canada's lowest-cost mines.