 HOUSTON--BUSINESS WIRE--CenterPoint Energy, Inc. NYSE: CNP today reported income available to common shareholders of 221 million, or 0.37 per diluted share, for the second quarter of 2021, compared to income available to common shareholders of 59 million, or 0.11 per diluted share, for the second quarter of 2020. On a non-GAAP basis, second quarter 2021 earnings were 0.36 per diluted share, with 0.28 per diluted share from utility operations, and 0.08 per diluted share from midstream 