Murphy USA Inc. (NYSE: MUSA), a leading marketer of retail motor fuel products and convenience merchandise, today announced financial results for the three and six months ended June 30, 2023. Key Highlights: Net income was $132.8 million, or $6.02 per diluted share, in Q2 2023 compared to net income of $183.3 million, or $7.53 per diluted share, in Q2 2022 Total fuel contribution (retail fuel margin plus product supply and wholesale ("PS&W") results including RINs) for Q2 2023 was 29.5 cpg,...