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  1. Venezuelan state oil company PDVSA and Chevron Corp plan to turn their joint venture Petropiar plant back into a crude upgrader, after months operating as a less complex blending facility ...

  2. Citgo is majority-owned by Petroleos de Venezuela, S.A., known as PDVSA. The U.S. Treasury Department, which maintains a broad sanctions program against Venezuelan ...

  3. Venezuelan state oil company PDVSA and Chevron Corp plan to turn their joint venture Petropiar plant back into a crude upgrader, after months operating as a less complex blending facility ...