Exhibit 99.1

FOR IMMEDIATE RELEASE

BRISTOW GROUP REPORTS FINANCIAL PERFORMANCE FOR

ITS FISCAL YEAR 2012 FIRST QUARTER ENDED JUNE 30, 2011

HOUSTON, August 8, 2011 – Bristow Group Inc. (NYSE: BRS) today reported adjusted net income, excluding asset disposition effects, for the first quarter ended June 30, 2011 of $20.0 million, or $0.54 per diluted share, compared to $19.6 million, or $0.54 per diluted share, in the same period a year ago. GAAP net income for the first quarter was $21.0 million, or $0.57 per diluted share, compared to GAAP net income of $20.8 million, or $0.57 per diluted share in the same period a year ago.

Operating revenue for the first quarter increased 5% to $286.8 million from $272.0 million in the first quarter of fiscal year 2011. Adjusted earnings before interest, taxes, depreciation and amortization (“Adjusted EBITDA”), which excludes asset disposition effects, was $58.1 million for each of the quarters ended June 30, 2011 and 2010. Net cash provided by operating activities increased to $52.9 million in the June 2011 quarter from $25.7 million in the June 2010 quarter.

The quarter’s financial performance was negatively affected by several factors, including:

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These three main factors, in aggregate, reduced earnings per diluted share by approximately $0.22 and masked significant growth in the Other International Business Unit in the first quarter. Increased compensation cost represented 88% of the $13.5 million increase in direct cost and 54% of the $8.7 million increase in general and administrative expense over the prior year’s June quarter.

“Despite first quarter results that were affected by front-loaded compensation costs, we remain on track to meet the annual earnings per share guidance of $3.55 - $3.90 we provided on our last quarterly conference call as we do not anticipate the majority of these costs incurred this quarter to recur in the remainder of fiscal year 2012,” said William E. Chiles, President and Chief Executive Officer of Bristow Group. “We had operational successes in the first quarter that grew our revenue, including new contracts and improved flight activity in our Europe, Australia and Other International Business Units.”

“As previously disclosed, we continue to expect revenue and earnings per share for the current fiscal year to be stronger than fiscal year 2011 as we contract our newer technology aircraft for our clients and take advantage of the growth opportunities in the Other International Business Unit as well as the gradual improvement in activity for the rest of the world.” Chiles added, “We expect improvement in our financial results for the next three quarters of this fiscal year and, similar to last year, anticipate a stronger second half compared to the first half of fiscal year 2012.”

FIRST QUARTER FY2012 RESULTS

Our Europe Business Unit saw an increase in flying activity over the prior year quarter as a result of new contracts with existing clients, which resulted in increased operating income. Operating margin remained mostly flat despite the increase in operating revenue and operating income as a result of the additional compensation cost incurred in the current quarter, which was partially offset by an increase in earnings from unconsolidated affiliates.

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Operating income and operating margin in our West Africa Business Unit continued to be negatively affected by the loss of a major contract that was not fully offset by increased activity on two new contracts. Additionally, operating results were affected by an increase in direct cost due to salaries and benefits, depreciation, housing and security expense.

Our North America Business Unit continues to face a challenging market due to the impact of the severe reduction in the issuance of drilling and completion permits following the Deepwater Horizon event in 2010. We are continuing to reduce our cost structure in order to align the business with the current level of demand. However, based on current discussions with our major clients, especially concerning activity for large aircraft, we anticipate an increasing level of activity in the Gulf during the second half of fiscal year 2012.

Our Australia Business Unit saw an increase in revenue over the prior year resulting from new contracts and a favorable impact of changes in foreign currency exchange rates. However, operating income and operating margin declined primarily due to an increase in training costs with the introduction of a new aircraft type into this market and an increase in depreciation and amortization expense. We do not expect some of the costs incurred in the first quarter to recur at the same levels in future periods, which when coupled with a continued high level of activity in this market is expected to result in improved operating margin in the second half of fiscal year 2012.

As anticipated, our Other International Business Unit is emerging as the growth engine for Bristow. In the first quarter, higher operating revenue was delivered by our entry into Suriname, increased activity in Brazil and Russia and new contracts in Ghana and Trinidad. Operating margin was significantly higher primarily due to the strong performance of our unconsolidated affiliate in Brazil, which generated $2.7 million of equity earnings for the three months ended June 30, 2011.

GUIDANCE

Bristow is reaffirming today the diluted earnings per share guidance provided in May 2011 for the full fiscal year 2012 of $3.55 to $3.90.

“Our 2012 guidance reaffirmation demonstrates confidence in the financial improvement Bristow has historically shown through the year, especially in the second half. Our success will depend on our continued ability to grow and implement a new financial management tool called Bristow Value Added (BVA),” said Jonathan E. Baliff, Senior Vice President and Chief Financial Officer of Bristow Group. “A key objective is to increase our cash return on capital over our cost of capital while continuing top-line growth through fleet additions and our Client Promise effort to get paid for Target Zero performance. The cash returns generated by these successes will differentiate Bristow as a unique investment in the oilfield service sector.”

As a reminder, our GAAP earnings per share guidance does not include unrealized gains and losses on disposals of assets as well as special items because their timing and amounts are more variable and less predictable. This guidance is based on current foreign currency exchange rates. In providing this guidance, the Company has not included the impact of any changes in accounting standards and any impact from significant acquisitions or divestitures. Changes in events or other circumstances that the Company cannot currently anticipate or predict could result in earnings per share for fiscal year 2012 that are significantly above or below this guidance. Factors that could cause such changes are described below under Forward-Looking Statements Disclosure.

CONFERENCE CALL

Management will conduct a conference call starting at 10:00 a.m. ET (9:00 a.m. CT) on Tuesday, August 9, to review financial results for the fiscal year 2012 first quarter ended June 30, 2011. This release and the most recent investor slide presentation are available in the investor relations area of our web page at www.bristowgroup.com. The conference call can be accessed as follows:

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Via Webcast:

Via Telephone within the U.S.:

Via Telephone outside the U.S.:

ABOUT BRISTOW GROUP INC.

Bristow Group Inc. is the leading provider of helicopter services to the worldwide offshore energy industry based on the number of aircraft operated and one of two helicopter service providers to the offshore energy industry with global operations. The Company has major transportation operations in the North Sea, Nigeria and the U.S. Gulf of Mexico, and in most of the other major offshore oil and gas producing regions of the world, including Alaska, Australia, Brazil, Mexico, Russia and Trinidad. For more information, visit the Company’s website at www.bristowgroup.com.

FORWARD-LOOKING STATEMENTS DISCLOSURE

Statements contained in this news release that state the Company’s or management’s intentions, hopes, beliefs, expectations or predictions of the future are forward-looking statements. These forward-looking statements include statements regarding earnings guidance, capital allocation strategy, the impact of activity levels, business performance, and other market and industry conditions. It is important to note that the Company’s actual results could differ materially from those projected in such forward-looking statements. Additional information concerning factors that could cause actual results to differ materially from those in the forward-looking statements is contained from time to time in the Company’s SEC filings, including but not limited to the Company’s quarterly report on Form 10-Q for the quarter ended June 30, 2011 and the annual report on Form 10-K for the fiscal year ended March 31, 2011. Bristow Group Inc. disclaims any intention or obligation to revise any forward-looking statements, including financial estimates, whether as a result of new information, future events or otherwise.

(financial tables follow)

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BRISTOW GROUP INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME

(In thousands, except per share amounts)

(Unaudited)

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BRISTOW GROUP INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(In thousands)

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BRISTOW GROUP INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

(Unaudited)

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BRISTOW GROUP INC. AND SUBSIDIARIES

SELECTED OPERATING DATA

(In thousands, except flight hours and percentages)

(Unaudited)

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In addition to segment information for the three months ended June 30, 2011 and 2010, we have presented in the tables below the revised operating margin for the three months ended September 30 and December 31, 2010 and March 31, 2011 based on the revised operating margin calculation of operating income divided by operating revenue.

BRISTOW GROUP INC. AND SUBSIDIARIES

AIRCRAFT COUNT

AS OF JUNE 30, 2011

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BRISTOW GROUP INC. AND SUBSIDIARIES

GAAP RECONCILIATIONS

These financial measures have not been prepared in accordance with generally accepted accounting principles (“GAAP”) and have not been audited or reviewed by our independent auditor. These financial measures are therefore considered non-GAAP financial measures. Adjusted EBITDA is calculated by taking our income before provision for income taxes and adjusting for interest expense, depreciation and amortization, gain on disposal of assets and special items, if any. Adjusted operating income, adjusted net income and adjusted diluted earnings per share are each adjusted for gain on disposal of assets and special items, if any, during the reported periods. Management believes these non-GAAP financial measures provide meaningful supplemental information regarding our results because they exclude amounts that management does not consider part of our normal and recurring operations when assessing and measuring the operational and financial performance of the organization. A description of the adjustments to and reconciliations of these non-GAAP financial measures to the most comparable GAAP financial measures is as follows:

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