Exhibit 99.1

PRESS RELEASE

InfraREIT Reports Second Quarter 2015 and Year-to-Date Results

DALLAS, TEXAS, August 7, 2015—InfraREIT, Inc. (NYSE: HIFR) (“InfraREIT” or the “Company”) today reported financial results for the second quarter and six-month period ended June 30, 2015 and the Company’s financial outlook.

InfraREIT reported the following second quarter 2015 financial highlights:

“Our solid performance continued into the second quarter as we consistently executed on our strategy,” said David A. Campbell, Chief Executive Officer of InfraREIT.  “We continue to make investments to ensure reliable service and support growth in our service territories, enabling us to expand on our Footprint Projects.  Our growth is driven by placing needed transmission and distribution assets into service under our REIT structure.”

Solid Results in Second Quarter 2015

Lease revenue increased approximately 17 percent to $29.5 million for the three months ended June 30, 2015, compared to the same period in 2014.  Base rent contributed all of the lease revenue for the second quarter of 2015, compared to $24.5 million of base rent and $0.7 million of percentage rent for the second quarter of 2014.  The increase in base rent was driven by the addition of assets under lease.  As previously indicated, InfraREIT expects to recognize little to no percentage rent during the first or second quarters of each year and expects to recognize the largest amounts during the third and fourth quarters of each year.

General and administrative expense increased to $4.7 million in the second quarter of 2015, compared to $3.3 million for the second quarter of 2014, primarily as a result of higher management fees and increased professional services fees.  Depreciation expense was $9.7 million and $8.4 million for the second quarter of 2015 and 2014, respectively, and the increase was due to additional assets placed in service.

Net interest expense was $6.9 million and $8.0 million during the second quarters of 2015 and 2014, respectively.  The decrease resulted from lower interest expense due to the repayment of the outstanding amounts under InfraREIT’s revolving credit facilities in February 2015 with the proceeds received in connection with the initial public offering (IPO).

Other income, net was $0.8 million and $0.2 million during the second quarters of 2015 and 2014, respectively.  The increase resulted primarily from $0.5 million increase in allowance for funds used during construction (AFUDC) on other funds.

Net income was $8.8 million in the second quarter of 2015, or $0.15 per diluted share, compared to $5.5 million in the second quarter of 2014, or $0.12 per diluted share.  Diluted per share net income was based on 60.6 million weighted average diluted shares outstanding for the second quarter of 2015, compared to 45.6 million weighted average diluted shares outstanding during the second quarter of 2014.

In the second quarter of 2015, CAD was $18.3 million, or $0.30 per share, compared to $16.6 million, or $0.36 per share in the same period in 2014. CAD per share was based on 60.6 million shares outstanding as of June 30, 2015, compared to 45.5 million shares outstanding as of June 30, 2014.

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Adjusted EBITDA was $33.9 million in the second quarter of 2015, an increase of 5 percent, compared to $32.2 million in the same period in 2014.  Funds from Operations (FFO) was $18.5 million for the second quarter of 2015, an increase of 33 percent, compared to $13.9 million from the same period in 2014.  For the second quarter 2015, FFO on an adjusted basis (AFFO) was $26.8 million, an increase of 12 percent, compared to $24.0 million in the same period in 2014.

First Half 2015 Performance

Lease revenue of $58.8 million for the six months ended June 30, 2015, increased $8.7 million, or approximately 17 percent, compared to the same period in 2014.  Base rent contributed all of the lease revenue for the first six months of 2015, compared to $49.4 million of base rent and $0.7 million of percentage rent for the first six months of 2014.  The increase in base rent was driven by the addition of assets under lease.  

General and administrative expense was $53.5 million in the first six months of 2015, compared to $6.7 million for the first six months of 2014.  Higher general and administrative expense resulted from the issuance of 1.7 million shares of common stock to Hunt-InfraREIT, L.L.C. (Hunt-InfraREIT) as a non-cash reorganization advisory fee, resulting in an expense of $44.9 million in the first quarter of 2015, $0.9 million of increased professional services fees and $0.8 million of increased management fees.  Depreciation expense increased 14 percent to $19.2 million for the first six months of 2015, from $16.8 million in the first six months of 2014 as additional assets were placed in service.

Net interest expense was $14.4 million and $15.7 million during the six months ended June 30, 2015 and 2014, respectively.  The decrease resulted from lower interest expense due to the repayment of the outstanding amounts under InfraREIT’s revolving credit facilities in February 2015 with the proceeds received in connection with the IPO.

Other income, net was $1.5 million and less than $0.1 million for the six months ended June 30, 2015 and 2014, respectively.  The increase in other income, net was due to an increase in AFUDC on other funds of $0.6 million and a $0.9 million charge related to a change in fair value of the Operating Partnership’s contingent consideration owed to Hunt-InfraREIT during the six months ended June 30, 2014.

Net loss was $27.0 million in the first six months of 2015, or $(0.47) per diluted share, including the effect of a $44.9 million non-cash expense incurred in connection with the IPO.  Net income for the first six months of 2014 was $10.5 million, or $0.23 per diluted share.  Diluted per share net (loss) income was based on 57.8 million weighted average diluted shares outstanding for the first six months of 2015, compared to 45.6 million weighted average diluted shares outstanding during the first six months of 2014.  

The first six months of 2015 CAD was $36.5 million, or $0.60 CAD per share, compared to $29.3 million, or $0.64 CAD per share in the same period in 2014.  CAD per share was based on 60.6 million shares outstanding as of June 30, 2015, compared to 45.5 million shares outstanding as of June 30, 2014.

Adjusted EBITDA was $68.3 million in the first six months of 2015, an increase of 13 percent, compared to $60.4 million in the same period in 2014.  In the first six months of 2015, FFO was $(7.9) million, compared to $27.3 million for the same period in 2014.  The Company also reported AFFO of $53.6 million for the first six months of 2015, an increase of 21 percent, compared to $44.3 million for the same period in 2014.

Liquidity and Capital Resources

As of June 30, 2015, the Company had $50.5 million of unrestricted cash and cash equivalents. The Company primarily utilizes its cash for the payment of capital expenditures, operating expenses, debt service and dividend payments. InfraREIT also had $1.7 million of restricted cash and $325.0 million of unused capacity under its revolving credit facilities as of June 30, 2015.

Outlook and Guidance Update

InfraREIT is updating its previously provided guidance for 2015. CAD per share for the full year of 2015 is estimated at a range of $1.07 to $1.12 per share. The Company continues to expect its three-year cumulative annual growth in distributions per share to be in the range of 10 percent to 15 percent through December 31, 2018.  InfraREIT expects to achieve the lower half of this growth range solely through Footprint Projects, and to exceed the midpoint of the range through the acquisition of the Cross Valley Line and Golden Spread Interconnection from Hunt. The Company believes it could achieve the top of the range through additional Footprint Projects or acquisitions. Regarding InfraREIT’s consolidated debt profile, the Company targets debt as a percentage of total capitalization at or below 60 percent and AFFO-to-debt of at least 12 percent.

The guidance provided above represents forward-looking statements, which are based on current economic conditions and estimates, and the Company does not include other potential impacts, such as changes in accounting or unusual items. Supplemental information relating to the Company’s financial outlook is posted in the Investor Relations section of the Company’s Web site at www.InfraREITInc.com.

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Monthly ROFO Project Updates

Generally, InfraREIT’s monthly “ROFO Project Updates” will be provided after the closing of trading on the New York Stock Exchange on or about the 15th day of each month. These ROFO Project Updates can be found on the Company’s Web site (www.InfraREITInc.com) under the “Hunt Transmission-Our Developer” and “Investor Relations” sections.  InfraREIT has also provided a ROFO Project Update in its “2Q 2015 Results & Supplemental Information” presentation posted on the Company’s Web site as of today.  The next ROFO Project Update will be issued on September 15, 2015.

Dividends and Distributions

On June 5, 2015, InfraREIT’s Board of Directors declared a cash distribution by the Operating Partnership to all unit holders of record, including InfraREIT, on June 30, 2015 of $0.225 per unit for a total distribution of $13.6 million, $9.8 million of which was allocated to InfraREIT. Also, on June 5, 2015, the Company’s board of directors declared a cash dividend to shareholders of record on June 30, 2015, of $0.225 per share for a total of $9.8 million. The cash distribution and cash dividend were paid on July 23, 2015.

Conference Call and Webcast

As previously announced, management will host a teleconference call August 7, 2015, at 10 a.m. U.S. Central (11 a.m. U.S. Eastern). David A. Campbell, Chief Executive Officer, and Brant Meleski, Chief Financial Officer, will discuss InfraREIT’s results and financial outlook.

Investors and analysts are invited to participate in the call by phone at 1-855-560-2576, or internationally at 1-412-542-4162, (access code: 10068113) or via the Internet at www.InfraREITInc.com. A replay of the call will be available on the Company Web site or by phone at 1-877-344-7529, or internationally at 1-412-317-0088, (access code: 10068113) for a seven-day period following the call.

Non-GAAP Measures

This press release contains certain financial measures that are not recognized under generally accepted accounting principles (GAAP). These non-GAAP measures are presented because InfraREIT’s management believes these non-GAAP measures help investors understand InfraREIT’s business, performance and ability to earn and distribute cash to its stockholders by providing perspectives not immediately apparent from net income. These measures are also measures frequently used by securities analysts, investors and other interested parties. The presentation of CAD, EBITDA, Adjusted EBITDA, FFO and AFFO in this press release are not intended to be considered in isolation or as a substitute for, or superior to, the financial information prepared and presented in accordance with GAAP. In addition, InfraREIT’s method of calculating these measures may be different from methods used by other companies, and, accordingly, may not be comparable to similar measures as calculated by other companies that do not use the same methodology as InfraREIT. Reconciliations of these measures to their most directly comparable GAAP measures are included in the Schedules to this press release.

About InfraREIT, Inc.

InfraREIT is a real estate investment trust that owns rate-regulated electric transmission and distribution assets in the state of Texas. The Company is externally managed by Hunt Utility Services, LLC, an affiliate of Hunt Consolidated, Inc. (a diversified holding company based in Dallas, Texas, and managed by the Ray L. Hunt family). The Company’s shares are traded on the New York Stock Exchange under the symbol “HIFR.” Additional information on InfraREIT is available at www.InfraREITInc.com.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the federal securities laws. These statements give InfraREIT management’s current expectations, and contain projections of results of operations or financial condition or forecasts of future events. Words such as “could,” “will,” “may,” “assume,” “forecast,” “strategy,” “guidance,” “outlook,” “target,” “expect,” “intend,” “plan,” “estimate,” “anticipate,” “believe,” or “project” and similar expressions are used to identify forward-looking statements. Without limiting the generality of the foregoing, forward-looking statements contained in this press release include InfraREIT’s expectations regarding its anticipated financial and operational performance, including projected or forecasted financial results, project timing, distributions to stockholders, dividend growth, capital expenditures, lease payments, CAD growth, AFFO-to-debt ratios and capitalization matters. Forward-looking statements can be affected by assumptions used or known or unknown risks or uncertainties. Consequently, no forward-looking statements can be guaranteed and actual results may differ materially and adversely from those reflected in the forward-looking statements. Factors that could cause actual results to differ materially from those indicated in the forward-looking statements include, among others, the following: (a) risks that the capital expenditures the Company expects will not materialize for a variety of reasons, including as a result of lower oil and gas drilling and related midstream and service company activities in the Permian Basin relative to the Company’s current expectations, (b) the Company’s ability to acquire ROFO Projects from Hunt, (c) the Company’s current reliance on its tenant for all of its revenues and, as a result, its dependency on the tenant’s solvency and financial and operating performance, (d) defaults on or non-renewal or early termination of leases by the Company’s tenant, (e) changes in the regulated rates the tenants of the Company’s assets may charge their customers and (f) defaults

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on or non-renewal or early termination of leases by the Company’s tenant. These and other applicable uncertainties, factors and risks are described more fully in the Company’s filings with the Securities and Exchange Commission.

Any forward-looking statement made by the Company in this press release is based only on information currently available to InfraREIT and speaks only as of the date on which it is made. InfraREIT undertakes no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

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InfraREIT, Inc.

CONSOLIDATED STATEMENTS OF INCOME

(In thousands, except share amounts)

(Unaudited)

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InfraREIT, Inc.

CONSOLIDATED BALANCE SHEETS

(In thousands, except share amounts)

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InfraREIT, Inc.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

(Unaudited)

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Non-GAAP Measures

Schedule 1

InfraREIT, Inc.

Explanation and Reconciliation of CAD

CAD

The Company’s definition of CAD includes a deduction of the portion of capital expenditures needed to maintain its net assets which equals depreciation expense within the applicable period. The portion of the capital expenditures in excess of depreciation, which the Company refers to as growth capital expenditures, will increase its net assets. Also included in CAD are various other adjustments from net income, as outlined below and described in more detail on Schedules 2 and 3.

The following sets forth a reconciliation of net income (loss) to CAD:

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Schedule 2

InfraREIT, Inc.

Explanation and Reconciliation of EBITDA and Adjusted EBITDA

EBITDA and Adjusted EBITDA

InfraREIT defines EBITDA as net income (loss) before interest expense, net; income tax expense; depreciation and amortization. Adjusted EBITDA is defined as EBITDA adjusted in a manner the Company believes is appropriate to show its core operational performance, including: (a) adding back the non-cash reorganization structuring fee, (b) an adjustment for the difference between the amount of percentage rent payments that the Company expects to receive with respect to the applicable period and the amount of percentage rent the Company recognizes under GAAP during the period, (c) an adjustment for the difference between the amount of base rent payments that the Company receives with respect to the applicable period and the amount of straight-line base rent recognized under GAAP, (d) adding back the one-time reorganization expenses related to the Company’s IPO and related reorganization transactions, and (e) adjusting for other income (expense), net.

The following table sets forth a reconciliation of net income (loss) to EBITDA and Adjusted EBITDA:

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Schedule 3

InfraREIT, Inc.

Explanation and Reconciliation of FFO and AFFO

FFO and AFFO

The National Association of Real Estate Investment Trusts (NAREIT) defines FFO as net income (computed in accordance with GAAP), excluding gains and losses from sales of property (net) and impairments of depreciated real estate, plus real estate depreciation and amortization (excluding amortization of deferred financing costs) and after adjustments for unconsolidated partnerships and joint ventures. Applying the NAREIT definition to the Company’s consolidated financial statements, which is the basis for the FFO presented in the press release and the reconciliation below, results in FFO representing net (loss) income before depreciation, impairment of assets and gain (loss) on sale of assets. FFO does not represent cash generated from operations as defined by GAAP and it is not indicative of cash available to fund all cash needs, including distributions.

AFFO is defined as FFO adjusted in a manner the Company believes is appropriate to show its core operational performance, including: (a) adding back the non-cash reorganization structuring fee, (b) an adjustment for the difference between the amount of percentage rent payments that the Company expects to receive with respect to the applicable period and the amount of percentage rent the Company recognizes under GAAP during the period, (c) an adjustment for the difference between the amount of base rent payments that the Company receives with respect to the applicable period and the amount of straight-line base rent recognized under GAAP, (d) adding back the one-time reorganization expenses related to the Company’s IPO and related reorganization transactions, and (e) adjusting for other income (expense), net.

The following table sets forth a reconciliation of net income (loss) to FFO and AFFO:

For additional information, contact:

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