[1]

Houston Electric’s lower effective tax rate for the three and six months ended June 30, 2020 compared to the same periods for 2019 was primarily due to an increase in the amount of amortization of the net regulatory EDIT liability.

[2]

CenterPoint Energy’s higher effective tax rate on the loss from continuing operations for the six months ended June 30, 2020 compared to the six months ended June 30, 2019 was primarily due to lower earnings from the impairment of CenterPoint Energy’s investment in Enable. Other effective tax rate drivers included the non-deductible goodwill impairment at the Indiana Electric Integrated reporting unit, an increase in the amount of amortization of the net regulatory EDIT liability, and an increase in the amount of remeasurement of state tax liabilities for changes in apportionment, the effect of which was compounded by the book loss in the six months ended June 30, 2020.

[3]

CenterPoint Energy’s higher effective tax rate on income from continuing operations for the three months ended June 30, 2020 compared to the three months ended June 30, 2019 was primarily driven by state tax impacts. In 2019, CenterPoint Energy recorded state deferred tax benefits as a result of the impact of state tax law changes and the release of a valuation allowance on certain state net operating losses.

[4]

CERC’s higher effective tax rate on income from continuing operations for the six months ended June 30, 2020 compared to the six months ended June 30, 2019 was primarily driven by the absence of state deferred tax benefits as result of state tax law changes and the release of a valuation allowance on certain state net operating losses in 2019.

[5]

CERC’s lower effective tax rate on income from continuing operations for the three months ended June 30, 2020 compared to the three months ended June 30, 2019 was driven by state tax impacts. In 2019, CERC recorded state deferred tax benefits as a result of the impact of state tax law changes, and the release of a valuation allowance on certain state net operating losses, the effect of which was compounded by the book loss in the three months ending June 30, 2019.

[6]

CenterPoint Energy’s higher effective tax rate on income from discontinued operations for the three months ended June 30, 2020 compared to the three months ended June 30, 2019 was primarily due to the tax impacts from the sale of the Infrastructure Services Disposal Group on April 9, 2020 and the sale of the Energy Services Disposal Group on June 1, 2020, the effect of which was compounded by lower book earnings in the three months ended June 30, 2020. See Note 3 for further information.

[7]

CenterPoint Energy’s lower effective tax rate on the loss from discontinued operations for the six months ended June 30, 2020 compared to the six months ended June 30, 2019 was primarily due to the tax impacts from the sale of the Infrastructure Services Disposal Group on April 9, 2020 and the sale of the Energy Services Disposal Group on June 1, 2020, the effect of which was compounded by lower book earnings in the six months ended June 30, 2020. See Note 3 for further information.

[8]

CERC’s higher effective tax rate on income from discontinued operations for the three months ended June 30, 2020 compared to the three months ended June 30, 2019 was primarily due to the tax impacts from the sale of the Energy Services Disposal Group on June 1, 2020, the effect of which was compounded by lower book earnings in the three months ended June 30, 2020. See Note 3 for further information.

[9]

CERC’s lower effective tax rate on the loss from discontinued operations for the six months ended June 30, 2020 was primarily due to the tax impacts from the sale of the Energy Services Disposal Group on June 1, 2020, the effect of which was compounded by lower book earnings in the six months ended June 30, 2020. See Note 3 for further information.