Exhibit 99.1

MYR Group Inc. Announces Fourth-Quarter and Full-Year 2012 Results

Rolling Meadows, Ill., March 6, 2013 — MYR Group Inc. (“MYR”) (NASDAQ: MYRG), a leading specialty contractor serving the electrical infrastructure market in the United States, today announced its fourth-quarter and full-year 2012 financial results.

Highlights

·                  Q4 2012 revenues of $247.8 million compared to $234.3 million in Q4 2011.

·                  Q4 2012 EBITDA of $22.3 million compared to $14.8 million in Q4 2011.

·                  Q4 2012 diluted earnings per share (EPS) of $0.46 compared to $0.28 in Q4 2011.

·                  Q4 2012 gross margin of 13.3 percent compared to 10.5 percent in Q4 2011.

·                  Full-year 2012 revenues of $999.0 million compared to $780.4 million for the full-year 2011.

·                  Full-year 2012 EBITDA of $80.7 million compared to $49.1 million for the full-year 2011.

·                  Full-year 2012 diluted EPS of $1.60 compared to $0.87 for the full-year 2011.

Management Comments

Bill Koertner, MYR’s president and CEO said, “We are very pleased to report that solid execution on our projects in the fourth quarter resulted in increased revenue and significant increases in contract margin, EBITDA and EPS compared to the fourth quarter last year. In addition, the full-year 2012 was a record year for us in terms of revenue and profitability. Our full-year 2012 revenues grew 28 percent over 2011, as construction continued on several large transmission projects and business in our C&I segment improved. Our C&I segment ended the year with record backlog, and we expect that business segment to continue to improve as economic conditions improve in the western United States. Our equipment utilization remained strong during the fourth quarter and contributed to our strong financial performance. In 2012, we continued our investment in work force development, equipment and tooling, which contributed to our success. With our strong balance sheet, skilled workforce and extensive fleet of equipment, we remain optimistic about our outlook over the long term.”

Fourth-Quarter Results

MYR reported fourth-quarter 2012 revenues of $247.8 million, an increase of $13.5 million, or 5.8 percent, compared to the fourth quarter of 2011. Specifically, the Transmission and Distribution (T&D) segment reported revenues of $203.6 million, an increase of $10.2 million, or 5.3 percent, over the fourth quarter of 2011. The majority of the growth in T&D revenues in the fourth quarter over the same period in 2011 was the result of an increase in revenues from many small and a few medium-sized transmission projects and increased storm work, which was partially offset by a decrease in revenues from several large transmission projects. Storm work contributed approximately $24.5 million to T&D revenues in the fourth quarter of 2012, primarily from work related to Hurricane Sandy, compared to $7.6 million in the fourth quarter of 2011. The Commercial and Industrial (C&I) segment reported fourth-quarter 2012 revenues of $44.1 million, an increase of $3.3 million, or 8.2 percent, over the fourth quarter of 2011, primarily the result of an increase in revenue on small and medium-sized projects.

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Consolidated gross profit increased to $32.9 million, or 13.3 percent of revenues, in the fourth quarter of 2012, compared to $24.6 million, or 10.5 percent of revenues, in the fourth quarter of 2011. The growth in gross profit was primarily due to the increase in volume. Gross profit as a percentage of revenues, or gross margin, increased due to an overall improvement in transmission project margins, increased distribution margins and increased margins on medium-sized C&I projects, in addition to higher utilization of fleet assets. Storm work contributed approximately 100 basis points to the improved gross margin in the fourth quarter.

Selling, general and administrative expenses increased to $17.5 million in the fourth quarter of 2012, compared to $15.6 million in the fourth quarter of 2011, mainly due to higher employee compensation and benefit costs primarily resulting from an increase in profit sharing and bonus expense. As a percentage of revenues, these expenses increased to 7.1 percent for the fourth quarter of 2012, from 6.7 percent for the fourth quarter of 2011.

For the fourth quarter of 2012, net income was $9.8 million, or $0.46 per diluted share, compared to $5.9 million, or $0.28 per diluted share, for the same period of 2011. Fourth-quarter 2012 EBITDA was $22.3 million, or 9.0 percent of revenues, compared to $14.8 million, or 6.3 percent of revenues, in the fourth quarter of 2011. The increase in EBITDA as a percentage of revenues was mainly due to the higher gross margin, which was offset in part by higher selling, general and administrative expenses as a percentage of revenues, as discussed above.

Full-Year Results

MYR reported revenues of $999.0 million for the full year of 2012, an increase of $218.6 million, or 28.0 percent, compared with the full year of 2011. The T&D segment reported revenues of $828.7 million in the full year of 2012, an increase of 33.2 percent over the 2011 period. The growth in revenues was primarily the result of an increase in revenues from transmission projects of all sizes, which were partially offset by a decrease in distribution revenues. The C&I segment reported full-year 2012 revenues of $170.2 million, an increase of 7.5 percent from 2011, due to an increase in revenue on small and medium-sized projects, partially offset by an overall decrease in revenues from a few large projects.

Consolidated gross profit increased 38.7 percent to $118.7 million for the full year of 2012 from $85.6 million for the full year of 2011. Gross margin grew to 11.9 percent for the full year of 2012 from 11.0 percent for the full year of 2011. The increase in gross margin was mainly attributable to an overall increase in contract margins on small and medium-sized projects in both segments and to improved utilization of fleet assets.

Selling, general and administrative expenses increased to $63.6 million for the full year of 2012 from $56.8 million for the full year of 2011. The increase was primarily due to an increase in employee compensation related to the increased number of support personnel, normal salary increases, increased profit sharing and bonus expense and an increase in employee-related benefit costs. As a percentage of revenues, these expenses decreased to 6.4 percent for the full year of 2012 from 7.3 percent for the full year of 2011.

For the full year of 2012, net income was $34.3 million, or $1.60 per diluted share, compared to $18.3 million, or $0.87 per diluted share, for the same period of 2011. EBITDA for the full year of 2012 was $80.7 million, or 8.1 percent of revenues, compared to $49.1 million, or 6.3 percent of revenues, for the full year of 2011. The increase in EBITDA as a percentage of revenues was mainly due to the higher gross margin and lower selling, general and administrative expenses as a percentage of revenues.

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Backlog

Total backlog at December 31, 2012 increased $6.3 million compared to the $491.3 million reported at September 30, 2012. T&D backlog decreased $15.3 million, or 3.9 percent, while C&I backlog increased $21.6 million, or 21.6 percent, during this period.

As of December 31, 2012, MYR’s backlog was $497.6 million, consisting of $375.7 million in the T&D segment and $121.9 million in the C&I segment. Compared to December 31, 2011, T&D backlog decreased $236.4 million, or 38.6 percent, while C&I backlog increased $41.2 million, or 51.2 percent.

Backlog may not accurately represent the revenues that MYR expects to realize during any period. The timing of contract awards as well as the type and duration of large projects can significantly affect MYR’s backlog at any point in time. The amount of subcontractor and material cost in our projects under contract at any one point in time can also affect MYR’s backlog.  Backlog reporting methods can vary considerably from company to company depending on each company’s backlog definition. Backlog should not be relied upon as a stand-alone indicator of future results.

Balance Sheet

As of December 31, 2012, MYR had cash and cash equivalents of $19.8 million and $155.3 million of borrowing availability under its credit facility. MYR’s credit facility provides for revolving loans, letters of credit and swingline loans and matures in December 2016.

Non-GAAP Financial Measures

To supplement MYR’s financial statements presented in accordance with generally accepted accounting principles in the United States (GAAP), MYR uses certain non-GAAP measures. Reconciliation to the nearest GAAP measures of all non-GAAP measures included in this press release can be found at the end of this release.  MYR’s definitions of these non-GAAP measures may differ from similarly titled measures used by others.  These non-GAAP measures should be considered supplemental to, and not a substitute for, financial information prepared in accordance with GAAP.

MYR believes that these non-GAAP measures are useful because they (i) provide both management and investors meaningful supplemental information regarding financial performance by excluding certain expenses and benefits that may not be indicative of recurring core business operating results, (ii) permit investors to view MYR’s performance using the same tools that management uses to evaluate MYR’s past performance, reportable business segments and prospects for future performance, (iii) publicly disclose results that are relevant to financial covenants included in MYR’s credit facility and (iv) otherwise provide useful supplemental information that may be useful to investors in evaluating MYR.

Conference Call

MYR will host a conference call to discuss its fourth-quarter and full-year 2012 results on Thursday, March 7, 2013, at 9:00 a.m. Central time. To participate in the conference call via telephone, please dial (877) 561-2750 (domestic) or (763) 416-8565 (international) at least five minutes prior to the start of the event. A replay of the conference call will be available through Wednesday, March 13, 2013, at 11:59 p.m. Eastern time, by dialing (855) 859-2056 or (404) 537-3406, and entering conference ID 99440683. MYR will also broadcast the conference call live via the internet. Interested parties may access the webcast through the Investor Relations section of the Company’s website at www.myrgroup.com. Please access the website at least 15 minutes prior to the start of the call to

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register, download and install any necessary audio software. The webcast will be archived for seven days.

About MYR Group Inc.

MYR is a leading specialty contractor serving the electrical infrastructure market in the United States. MYR is one of the largest national contractors servicing the transmission and distribution sector of the United States electric utility industry. MYR’s transmission and distribution customers include electric utilities, cooperatives, municipalities and private developers. MYR provides a broad range of transmission and distribution services which includes design, engineering, procurement, construction, upgrade, maintenance and repair services with a particular focus on construction, maintenance and repair throughout the continental United States. MYR also provides commercial and industrial electrical contracting services in the western United States.

Forward-Looking Statements

Various statements in this announcement, including those that express a belief, expectation, or intention, as well as those that are not statements of historical fact, are forward-looking statements. The forward-looking statements may include projections and estimates concerning the timing and success of specific projects and our future production, revenue, income, capital spending, segment improvements and investments. Forward-looking statements are generally accompanied by words such as “estimate,” “project,” “predict,” “believe,” “expect,” “anticipate,” “potential,” “plan,” “goal,” “see,” “should,” “appears” or other words that convey the uncertainty of future events or outcomes. The forward-looking statements in this announcement speak only as of the date of this announcement; we disclaim any obligation to update these statements (unless required by securities laws), and we caution you not to rely on them unduly. We have based these forward-looking statements on our current expectations and assumptions about future events. While our management considers these expectations and assumptions to be reasonable, they are inherently subject to significant business, economic, competitive, regulatory and other risks, contingencies and uncertainties, most of which are difficult to predict and many of which are beyond our control. No forward-looking statement can be guaranteed and actual results may differ materially from those projected. Forward-looking statements in this press announcement should be evaluated together with the many uncertainties that affect MYR’s business, particularly those mentioned in the risk factors and cautionary statements in Item 1A of MYR’s Annual Report on Form 10-K for the fiscal year ended December 31, 2012, and in any risk factors or cautionary statements contained in MYR’s Quarterly Reports on Form 10-Q or Current Reports on Form 8-K.

MYR Group Inc. Contact:

Paul J. Evans, Chief Financial Officer, 847-290-1891, investorinfo@myrgroup.com

Investor Contact:

Philip Kranz, Dresner Corporate Services, 312-780-7240, pkranz@dresnerco.com

Financial tables follow…

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MYR GROUP INC.

Unaudited Consolidated Balance Sheets

As of December 31, 2012 and 2011

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MYR GROUP INC.

Unaudited Consolidated Statements of Operations

Three Months and Twelve Months Ended December 31, 2012 and 2011

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MYR GROUP INC.

Unaudited Consolidated Statements of Cash Flows

Three and Twelve Months Ended December 31, 2012 and 2011

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MYR GROUP INC.

Unaudited Consolidated Selected Data and Net Income Per Share

Three and Twelve Months Ended December 31, 2012 and 2011

(1)                    MYR calculates net income per common share in accordance with ASC 260, Earnings Per Share.

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MYR GROUP INC.

Unaudited Performance Measures and Reconciliation of Non-GAAP Measures

Three and Twelve Months Ended December 31, 2012 and 2011

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(1)                  These financial performance measures are provided as supplemental information to the financial statements. These measures are used by management to evaluate our past performance and prospects for future performance, to review measurements included in the financial covenants in our credit facility and to compare our results with those of our peers.  In addition, we believe that certain of the measures, such as book value, tangible book value, free cash flow, asset turnover, return on equity and debt leverage are measures that are monitored by sureties, lenders, lessors, suppliers and certain investors. Our calculation of each measure is described in the following notes; our calculation may not be the same as the calculations made by other companies.

(2)                  EBITDA is defined as earnings before interest, taxes, depreciation and amortization.  EBITDA is not recognized under GAAP and does not purport to be an alternative to net income as a measure of operating performance or to net cash flows provided by operating activities as a measure of liquidity. EBITDA is a component of the debt to EBITDA covenant that we must report to our bank on a quarterly basis. In addition, management considers EBITDA a useful measure because it eliminates differences which are caused by different capital structures as well as different tax rates and depreciation schedules when comparing our measures to our peers’ measures.

(3)                  EBITDA per share is calculated by dividing EBITDA by the weighted average number of diluted shares outstanding for the period. EBITDA per diluted share is not recognized under GAAP and does not purport to be an alternative to income per diluted share.

(4)                  Book value per share is calculated by dividing total stockholders’ equity at the end of the period by the weighted average diluted shares outstanding for the period.

(5)                  Tangible book value is calculated by subtracting goodwill and intangible assets outstanding at the end of the period from stockholders’ equity outstanding at the end of the period. Tangible book value is not recognized under GAAP and does not purport to be an alternative to book value or stockholders’ equity.

(6)                  Tangible book value per share is calculated by dividing tangible book value at the end of the period by the weighted average number of diluted shares outstanding for the period. Tangible book value per diluted share is not recognized under GAAP and does not purport to be an alternative to income per diluted share.

(7)                  Free cash flow, which is defined as cash flow provided by operating activities minus cash flow used in purchasing property and equipment, is not recognized under GAAP and does not purport to be an alternative to net income, cash flow from operations or the change in cash on the balance sheet. Management views free cash flow as a measure of operational performance, liquidity and financial health.

(8)                  Asset turnover is calculated by dividing the current period revenue by total assets at the beginning of the period.

(9)                  Return on assets is calculated by dividing net income for the period by total assets at the beginning of the period.

(10)           Return on equity is calculated by dividing net income for the period by total stockholders’ equity at the beginning of the period.

(11)           The debt leverage ratio is calculated by dividing total debt at the end of the period by total stockholders’ equity at the end of the period.

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