UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 21, 2015

Bristow Group Inc.

(Exact name of registrant as specified in its charter)

Delaware |  | 001-31617 |  | 72-0679819
(State or other jurisdiction of incorporation) |  | (Commission File Number) |  | (IRS Employer Identification No.)

2103 City West Blvd., 4th Floor Houston, Texas |  | 77042
(Address of principal executive offices) |  | (Zip Code)

Registrant’s telephone number, including area code: (713) 267-7600

Former Name or Former Address, if Changed Since Last Report: NONE

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 7.01. | Regulation FD Disclosure.

On May 21, 2015, Bristow Group Inc. posted the Fourth Quarter FY2015 Earnings Presentation to its website at www.bristowgroup.com. This presentation is attached hereto as Exhibit 99.1.

The information in this Item 7.01, including Exhibit 99.1, is being furnished, not “filed,”—for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. Accordingly, the information contained in Exhibit 99.1 will not be incorporated by reference into any registration statement or other document filed by Bristow Group Inc. pursuant to the Securities Act of 1933, as amended, except as may be expressly set forth by specific reference in such filing.

Item 9.01. | Financial Statements and Exhibits

(d) Exhibits

Exhibit Number |  | Description of Exhibit
99.1 |  | Fourth Quarter FY2015 Earnings Presentation posted on May 21, 2015.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

|  |  |  | BRISTOW GROUP INC.
Date: May 21, 2015 |  |  |  | By: |  | /s/ Brian J. Allman
|  |  |  |  |  | Brian J. Allman
|  |  |  |  |  | Vice President, Chief Accounting Officer