【04月21日芝加哥商业交易所（CME）WTI原油、布伦特原油、天然气成交量及未平仓数据】1. WTI原油期货成交量为690646手，较上个交易日减少133867手。未平仓合约为1878289手，较上个交易日减少17321手。2. 布伦特原油期货成交量为131647手，较上个交易日减少18251手。未平仓合约为194652手，较上个交易日增加1656手。3. 天然气期货成交量为619476手，较上个交易日增加131595手。未平仓合约为1468661手，较上个交易日减少8790手。
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