Document:

EX-4.2

 Exhibit 4.2 

EXECUTION COPY 
 $350,000,000

 GULFPORT ENERGY CORPORATION 

6.625% Senior Notes due 2023 

REGISTRATION RIGHTS AGREEMENT 

April 21, 2015 
 Credit Suisse Securities
(USA) LLC 
 Scotia Capital (USA) Inc. 
  

	c/o	Credit Suisse Securities (USA) LLC 

 Eleven Madison Avenue 

New York, New York 10010-3629 
 Dear Sirs: 

Gulfport Energy Corporation, a Delaware corporation (the “Issuer”), proposes to issue and sell to Credit Suisse Securities
(USA) LLC, Scotia Capital (USA) Inc., Barclays Capital Inc., Wells Fargo Securities, LLC, KeyBanc Capital Markets Inc., IBERIA Capital Partners L.L.C., Wedbush Securities Inc., BNP Paribas Securities Corp., BBVA Securities Inc., PNC Capital Markets
LLC and U.S. Bancorp Investments, Inc., (collectively, the “Initial Purchasers”), upon the terms set forth in a purchase agreement dated April 16, 2015 (the “Purchase Agreement”), $350,000,000 aggregate
principal amount of its 6.625% Senior Notes due 2023 (the “Initial Securities”) to be unconditionally guaranteed (the “Guaranties”) by each subsidiary listed on Schedule A hereto (the “Guarantors”
and together with the Issuer, the “Company”). The Initial Securities will be issued pursuant to an Indenture, dated as of April 21, 2015 (the “Indenture”), among the Issuer, the Guarantors and Wells Fargo Bank,
National Association (the “Trustee”). As an inducement to the Initial Purchasers, the Company agrees with the Initial Purchasers, for the benefit of the holders of the Initial Securities (including, without limitation, the Initial
Purchasers), the Exchange Securities (as defined below) and the Private Exchange Securities (as defined below) (collectively the “Holders”), as follows: 

1. Registered Exchange Offer. The Company shall, at its own cost, prepare and file with the Securities and Exchange Commission
(the “Commission”) a registration statement (along with any document or information incorporated by reference therein, the “Exchange Offer Registration Statement”) on an appropriate form under the Securities Act of
1933, as amended (the “Securities Act”), with respect to a proposed offer (the “Registered Exchange Offer”) to the Holders of Transfer Restricted Securities (as defined in Section 6 hereof), who are not prohibited by
any law or policy of the Commission from participating in the Registered Exchange Offer, to issue and deliver to such Holders, in exchange for the Initial Securities, a like aggregate principal amount of debt securities (the “Exchange
Securities”) of the Issuer issued under the Indenture and identical in all material respects to the Initial Securities (except for the transfer restrictions relating to the Initial Securities and the provisions relating to the matters
described in Section 6 hereof) that would be registered under the Securities Act. The Company shall use its commercially reasonable efforts to cause such Exchange Offer Registration Statement to become effective under the Securities Act within
330 days (or if the 330th day is not a business day, the first business day thereafter) after the date of original issue of the Initial Securities (the “Issue Date”) and shall keep the Exchange Offer Registration Statement effective
for not less than 30 days (or longer, if required by applicable law) after the date notice of the Registered Exchange Offer is mailed to the Holders (such period being called the “Exchange Offer Registration Period”). For
purposes of this Agreement, “business day” shall mean a day other than a Saturday, Sunday or other day on which banking institutions are authorized or required by law to close in New York City. 

 If the Company effects the Registered Exchange Offer, the Company will be entitled to close the
Registered Exchange Offer 30 days after the commencement thereof (or longer, if required by applicable law, or if the 30th day is not a business day, the first business day thereafter) provided
that the Company has accepted all the Initial Securities theretofore validly tendered in accordance with the terms of the Registered Exchange Offer. 

Following the declaration of the effectiveness of the Exchange Offer Registration Statement, the Company shall promptly commence the
Registered Exchange Offer, it being the objective of such Registered Exchange Offer to enable each Holder of Transfer Restricted Securities (as defined in Section 6 hereof) electing to exchange the Initial Securities for Exchange Securities
(assuming that such Holder is not an “affiliate,” as defined in Rule 405 of the Securities Act, of the Company, acquires the Exchange Securities in the ordinary course of such Holder’s business and at the time of the commencement of
the Registered Exchange Offer it has no arrangements or understandings with any person to participate in the distribution of the Exchange Securities within the meaning of the Securities Act and is not prohibited by any law or policy of the
Commission from participating in the Registered Exchange Offer) to trade such Exchange Securities from and after their receipt without any limitations or restrictions under the Securities Act and without material restrictions under the securities
laws of the several states of the United States; provided, however, that Participating Broker-Dealers (as defined below) receiving Exchange Securities in the Registered Exchange Offer will have a prospectus delivery requirement with respect to the
resale of such Exchange Securities. 
 The Company acknowledges that, pursuant to current interpretations by the Commission’s staff of
Section 5 of the Securities Act, in the absence of an applicable exemption therefrom, (i) each Holder that is a broker-dealer electing to exchange Initial Securities, acquired for its own account as a result of market making activities or
other trading activities, for Exchange Securities (an “Exchanging Dealer”), is required to deliver a prospectus containing the information set forth in (a) Annex A hereto on the cover, (b) Annex B hereto in the
“Exchange Offer Procedures” section and the “Purpose of the Exchange Offer” section, and (c) Annex C hereto in the “Plan of Distribution” section of such prospectus in connection with a sale of any such Exchange
Securities received by such Exchanging Dealer pursuant to the Registered Exchange Offer and (ii) an Initial Purchaser that elects to sell Exchange Securities acquired in exchange for Initial Securities constituting any portion of an unsold
allotment is required to deliver a prospectus containing the information required by Items 507 or 508 of Regulation S-K under the Securities Act, as applicable, in connection with such sale. 

The Company shall use its commercially reasonable efforts to keep the Exchange Offer Registration Statement effective and to amend and
supplement the prospectus contained therein, in order to permit such prospectus to be lawfully delivered by all persons subject to the prospectus delivery requirements of the Securities Act for such period of time as such persons must comply with
such requirements in order to resell the Exchange Securities; provided, however, that (i) in the case where such prospectus and any amendment or supplement thereto must be delivered by an Exchanging Dealer or an Initial Purchaser, such
period shall be the lesser of 180 days following the consummation of the Registered Exchange Offer and the date on which all Exchanging Dealers and the Initial Purchasers have sold all Exchange Securities held by them (unless such period is extended
pursuant to Section 3(j) below) and (ii) the Company shall make such prospectus and any amendment or supplement thereto available upon request to any broker-dealer for use in connection with any resale of any Exchange Securities for a
period of not less than 90 days after the consummation of the Registered Exchange Offer (or such shorter period in which such persons are required by applicable law to deliver such prospectus). 

If, upon consummation of the Registered Exchange Offer, any Initial Purchaser holds Initial Securities acquired by it as part of its initial
distribution, the Company, simultaneously with the delivery of the Exchange Securities pursuant to the Registered Exchange Offer, shall issue and deliver to such Initial Purchaser upon the written request of such Initial Purchaser, in exchange (the
“Private Exchange”) for the Initial Securities held by such Initial Purchaser, a like principal amount of debt securities of the Issuer issued under the Indenture and identical in all material respects (including the existence of
restrictions on transfer under the Securities Act and the securities laws of the several states of the United States, but excluding provisions relating to the matters described in Section 6 hereof) to the Initial Securities (the
“Private Exchange Securities”). The Initial Securities, the Exchange Securities and the Private Exchange Securities are herein collectively called the “Securities”. 

 In connection with the Registered Exchange Offer, the Company shall: 

(a) mail to each Holder a copy of the prospectus forming part of the Exchange Offer Registration Statement, together with an
appropriate letter of transmittal and related documents; 
 (b) keep the Registered Exchange Offer open for not less than 30
days (or longer, if required by applicable law) after the date notice thereof is mailed to the Holders; 
 (c) utilize the
services of a depositary for the Registered Exchange Offer with an address in the Borough of Manhattan, The City of New York, which may be the Trustee or an affiliate of the Trustee; 

(d) permit Holders to withdraw tendered Initial Securities at any time prior to the close of business, New York time, on the
last business day on which the Registered Exchange Offer shall remain open; and 
 (e) otherwise comply with all applicable
laws. 
 As soon as practicable after the close of the Registered Exchange Offer or the Private Exchange, as the case may be, the Company
shall: 
 (x) accept for exchange all the Initial Securities validly tendered and not withdrawn pursuant to the
Registered Exchange Offer or the Private Exchange, as the case may be; 
 (y) deliver to the Trustee for cancellation
all the Initial Securities so accepted for exchange; and 
 (z) cause the Trustee to authenticate and deliver promptly
to each Holder of the Initial Securities, Exchange Securities or Private Exchange Securities, as the case may be, equal in principal amount to the Initial Securities of such Holder so accepted for exchange. 

The Indenture will provide that the Exchange Securities will not be subject to the transfer restrictions set forth in the Indenture and that
all the Securities will vote and consent together on all matters as one class and that none of the Securities will have the right to vote or consent as a class separate from one another on any matter. 

Interest on each Exchange Security and Private Exchange Security issued pursuant to the Registered Exchange Offer and in the Private Exchange
will accrue from the last interest payment date on which interest was paid on the Initial Securities surrendered in exchange therefor or, if no interest has been paid on the Initial Securities, from the Issue Date. 

Each Holder participating in the Registered Exchange Offer shall be required to represent in writing to the Company that at the time of the
consummation of the Registered Exchange Offer (i) any Exchange Securities received by such Holder will be acquired in the ordinary course of business, (ii) such Holder will have no arrangements or understanding with any person to
participate in the distribution of the Securities or the Exchange Securities within the meaning of the Securities Act, (iii) such Holder is not an “affiliate,” as defined in Rule 405 of the Securities Act, of the Company or if it is
an affiliate, such Holder will comply with the registration and prospectus delivery requirements of the Securities Act to the extent applicable, (iv) if such Holder is not a broker-dealer, that it is not
engaged in, and does not intend to engage in, the distribution of the Exchange Securities and (v) if such Holder is a broker-dealer, that it will receive Exchange Securities for its own account in exchange for Initial Securities that were
acquired as a result of market-making activities or other trading activities and that it will be required to acknowledge that it will deliver a prospectus in connection with any resale of such Exchange Securities. 

 Notwithstanding any other provisions hereof, the Company will ensure that (i) any Exchange
Offer Registration Statement and any amendment thereto and any prospectus forming part thereof and any supplement thereto complies in all material respects with the Securities Act and the rules and regulations thereunder, (ii) any Exchange
Offer Registration Statement and any amendment thereto does not, when it becomes effective, contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not
misleading and (iii) any prospectus forming part of any Exchange Offer Registration Statement, and any supplement to such prospectus, does not include an untrue statement of a material fact or omit to state a material fact required to be stated
therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. 

2. Shelf Registration. If, (i) because of any change in law or in applicable interpretations thereof by the staff of the
Commission, the Company is not permitted to effect a Registered Exchange Offer, as contemplated by Section 1 hereof, (ii) the Registered Exchange Offer is not consummated within 365 days of the Issue Date, (iii) any Initial Purchaser
so requests with respect to the Initial Securities (or the Private Exchange Securities) not eligible to be exchanged for Exchange Securities in the Registered Exchange Offer and held by it following consummation of the Registered Exchange Offer or
(iv) any Holder (other than an Exchanging Dealer) notifies the Company that (x) it is prohibited by law or SEC policy from participating in the Registered Exchange Offer or (y) may not resell the Exchange Securities acquired by them
in the Registered Exchange Offer to the public without delivering a prospectus, then, upon written request, the Company shall take the following actions: 

(a) The Company shall, at its cost, as promptly as practicable (but in no event more than 30 days after so requested pursuant
to this Section 2) (such 30th day being a “Shelf Registration Statement Filing Deadline”) file with the Commission and thereafter shall use its commercially reasonable efforts to cause to be declared effective (unless it
becomes effective automatically upon filing) a registration statement (the “Shelf Registration Statement” and, together with the Exchange Offer Registration Statement, a “Registration Statement”) on an appropriate
form under the Securities Act relating to the offer and sale of the Transfer Restricted Securities (as defined in Section 6 hereof) by the Holders thereof from time to time in accordance with the methods of distribution set forth in the Shelf
Registration Statement and Rule 415 under the Securities Act (hereinafter, along with any document or information incorporated by reference therein, the “Shelf Registration”) in the case of clause (i) above on or prior to the
later to occur of (A) the 365th day following the Issue Date and (B) the 180th day after the date of the event described in clause (i) above, and on or prior to the 90th day after the date on which the Shelf Registration Statement is
required to be filed in the case of clauses (ii), (iii) and (iv) above; provided, however, that no Holder (other than an Initial Purchaser) shall be entitled to have the Securities held by it covered by such Shelf Registration Statement
unless such Holder agrees in writing to be bound by all the provisions of this Agreement applicable to such Holder. 
 (b)
The Company shall use its commercially reasonable efforts to keep the Shelf Registration Statement continuously effective in order to permit the prospectus included therein to be lawfully delivered by the Holders of the relevant Securities, until
the earlier of (i) two years (or for such longer period if extended pursuant to Section 3(j) below) from the Issue Date and (ii) the date on which no Notes are Transfer Restricted Securities (the “Shelf Registration
Period”). 
 (c) Notwithstanding any other provisions of this Agreement to the contrary, the Company shall cause the
Shelf Registration Statement and the related prospectus and any amendment or supplement thereto, as of the effective date of the Shelf Registration Statement, amendment or supplement, (i) to comply in all material respects with the applicable
requirements of the Securities Act and the rules and regulations of the Commission and (ii) not to contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the
statements therein, in light of the circumstances under which they were made, not misleading. 

 3. Registration Procedures. In connection with any Shelf Registration contemplated by
Section 2 hereof and, to the extent applicable, any Registered Exchange Offer contemplated by Section 1 hereof, the following provisions shall apply: 

(a) The Company shall: (i) furnish to each Initial Purchaser, prior to the filing thereof with the Commission, a copy of
the Registration Statement and each amendment thereof and each supplement, if any, to the prospectus included therein and, in the event that an Initial Purchaser (with respect to any portion of an unsold allotment from the original offering) is
participating in the Registered Exchange Offer or the Shelf Registration Statement, the Company shall use its commercially reasonable efforts to reflect in each such document, when so filed with the Commission, such comments as such Initial
Purchaser reasonably may propose; (ii) include the information set forth in Annex A hereto on the cover, in Annex B hereto in the “Exchange Offer Procedures” section and the “Purpose of the Exchange Offer” section and in
Annex C hereto in the “Plan of Distribution” section of the prospectus forming a part of the Exchange Offer Registration Statement and include the information set forth in Annex D hereto in the Letter of Transmittal delivered pursuant to
the Registered Exchange Offer; (iii) if requested by an Initial Purchaser, include the information required by Items 507 or 508 of Regulation S-K under the Securities Act, as applicable, in the prospectus forming a part of the Exchange Offer
Registration Statement; (iv) include within the prospectus contained in the Exchange Offer Registration Statement a section entitled “Plan of Distribution,” reasonably acceptable to the Initial Purchasers, which shall contain a
summary statement of the positions taken or policies made by the staff of the Commission with respect to the potential “underwriter” status of any broker-dealer that is the beneficial owner (as defined in Rule 13d-3 under the Securities
Exchange Act of 1934, as amended (the “Exchange Act”)) of Exchange Securities received by such broker-dealer in the Registered Exchange Offer (a “Participating Broker-Dealer”), whether such positions or policies
have been publicly disseminated by the staff of the Commission or such positions or policies, in the reasonable judgment of the Initial Purchasers based upon advice of counsel (which may be in-house counsel), represent the prevailing views of the
staff of the Commission; and (v) in the case of a Shelf Registration Statement, include in the prospectus included in the Shelf Registration Statement (or, if permitted by Commission Rule 430B(b), in a prospectus supplement that becomes a
part thereof pursuant to Commission Rule 430B(f)) that is delivered to any Holder pursuant to Section 3(d) and Section 3(f) hereof, the names of the Holders, who propose to sell Securities pursuant to the Shelf Registration Statement,
as selling security holders. 
 (b) The Company shall give written notice to the Initial Purchasers, the Holders and any
Participating Broker-Dealer from whom the Company has received prior written notice that it will be a Participating Broker-Dealer in the Registered Exchange Offer (which notice pursuant to clauses (ii)-(v) hereof shall be accompanied by an
instruction to suspend the use of the prospectus until the requisite changes have been made): 
 (i) when the Registration
Statement or any amendment thereto has been filed with the Commission and when the Registration Statement or any post-effective amendment thereto has become effective; 

(ii) of any request by the Commission for amendments or supplements to the Registration Statement or the prospectus included
therein or for additional information; 
 (iii) of the issuance by the Commission of any stop order suspending the
effectiveness of the Registration Statement or the initiation of any proceedings for that purpose, of the issuance by the Commission of a notification of objection to the use of the form on which the Registration Statement has been filed, and of the
happening of any event that causes the Company to become an “ineligible issuer,” as defined in Commission Rule 405; 

 (iv) of the receipt by the Company or its legal counsel of any notification with
respect to the suspension of the qualification of the Securities for sale in any jurisdiction or the initiation or threatening of any proceeding for such purpose; and 

(v) of the happening of any event during the period that the Registration Statement is effective that requires the Company to
make changes in the Registration Statement or the prospectus in order that the Registration Statement or the prospectus do not contain an untrue statement of a material fact nor omit to state a material fact required to be stated therein or
necessary to make the statements therein (in the case of the prospectus, in the light of the circumstances under which they were made) not misleading. 

(c) The Company shall make every commercially reasonable effort to obtain the withdrawal, at the earliest possible time, of any
order suspending the effectiveness of the Registration Statement. 
 (d) The Company shall furnish to each Holder of
Securities included within the coverage of the Shelf Registration who so requests in writing, without charge, at least one copy of the Shelf Registration Statement and any post-effective amendment or supplement thereto, including financial
statements and schedules, and, if the Holder so requests in writing, all exhibits thereto (including those, if any, incorporated by reference). The Company shall not, without the prior consent of the Initial Purchasers, such consent not to be
unreasonably withheld, delayed or conditioned, make any offer relating to the Securities that would constitute a “free writing prospectus,” as defined in Commission Rule 405. 

(e) The Company shall upon request deliver to each Exchanging Dealer and each Initial Purchaser, and to any other Holder who so
requests in writing, without charge, at least one copy of the Exchange Offer Registration Statement and any post-effective amendment thereto, including financial statements and schedules, and, if any Initial Purchaser or any such Holder requests,
all exhibits thereto (including those incorporated by reference). 
 (f) The Company shall, during the Shelf Registration
Period, deliver to each Holder of Securities included within the coverage of the Shelf Registration, without charge, as many copies of the prospectus (including each preliminary prospectus) included in the Shelf Registration Statement and any
amendment or supplement thereto as such person may reasonably request. The Company consents, subject to the provisions of this Agreement, to the use of the prospectus or any amendment or supplement thereto by each of the selling Holders in
connection with the offering and sale of the Securities covered by the prospectus, or any amendment or supplement thereto, included in the Shelf Registration Statement. 

(g) The Company shall deliver to each Initial Purchaser, any Exchanging Dealer, any Participating Broker-Dealer and such other
persons required to deliver a prospectus following the Registered Exchange Offer, without charge, as many copies of the final prospectus included in the Exchange Offer Registration Statement and any amendment or supplement thereto as such persons
may reasonably request. The Company consents, subject to the provisions of this Agreement, to the use of the prospectus or any amendment or supplement thereto by any Initial Purchaser, if necessary, any Participating Broker-Dealer and such other
persons required to deliver a prospectus following the Registered Exchange Offer in connection with the offering and sale of the Exchange Securities covered by the prospectus, or any amendment or supplement thereto, included in such Exchange Offer
Registration Statement. 
 (h) Prior to any public offering of the Securities, pursuant to any Registration Statement, the
Company shall use commercially reasonable efforts to register or qualify or cooperate with the Holders included therein and their respective counsel in connection with the registration or qualification of the Securities for offer and sale under the
securities or “blue sky” laws of such states of the United States as any Holder reasonably requests in writing and do any and all other 

 
acts or things necessary or advisable to enable the offer and sale in such jurisdictions of the Securities covered by such Registration Statement; provided, however, that the Company shall not be
required to (i) qualify generally to do business in any jurisdiction where it is not then so qualified or (ii) take any action which would subject it to general service of process or to taxation in any jurisdiction where it is not then so
subject. 
 (i) Unless the Securities are in book entry form, the Company shall cooperate with the Holders to facilitate the
timely preparation and delivery of certificates representing the Securities to be sold pursuant to any Registration Statement free of any restrictive legends and in such denominations and registered in such names as the Holders may request a
reasonable period of time prior to sales of the Securities pursuant to such Registration Statement. 
 (j) Upon the
occurrence of any event contemplated by paragraphs (ii) through (v) of Section 3(b) above during the period for which the Company is required to maintain an effective Registration Statement, the Company shall promptly prepare and file
a post-effective amendment to the Registration Statement or a supplement to the related prospectus and any other required document so that, as thereafter delivered to Holders or purchasers of Securities, the prospectus will not contain an untrue
statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading. If the Company notifies the Initial
Purchasers, the Holders and any known Participating Broker-Dealer in accordance with paragraphs (ii) through (v) of Section 3(b) above to suspend the use of the prospectus until the requisite
changes to the prospectus have been made, then the Initial Purchasers, the Holders and any such Participating Broker-Dealers shall suspend use of such prospectus, and the period of effectiveness of the Shelf Registration Statement provided for in
Section 2(b) above and the Exchange Offer Registration Statement provided for in Section 1 above shall each be extended by the number of days from and including the date of the giving of such notice to and including the date when the
Initial Purchasers, the Holders and any known Participating Broker-Dealer shall have received such amended or supplemented prospectus pursuant to this Section 3(j). During the period during which the Company is required to maintain an effective
Shelf Registration Statement pursuant to this Agreement, the Company will prior to the three-year expiration of that Shelf Registration Statement file, and use its commercially reasonable efforts to cause to
be declared effective (unless it becomes effective automatically upon filing) within a period that avoids any interruption in the ability of Holders of Securities covered by the expiring Shelf Registration Statement to make registered dispositions,
a new registration statement relating to the Securities, which shall be deemed the “Shelf Registration Statement” for purposes of this Agreement. 

(k) Not later than the effective date of the applicable Registration Statement, the Company will provide a CUSIP number for the
Initial Securities, the Exchange Securities or the Private Exchange Securities, as the case may be, and provide the applicable trustee with printed certificates for the Initial Securities, the Exchange Securities or the Private Exchange Securities,
as the case may be, in a form eligible for deposit with The Depository Trust Company unless such Securities are in book entry form. 

(l) The Company will comply with all rules and regulations of the Commission to the extent and so long as they are applicable
to the Registered Exchange Offer or the Shelf Registration and will make generally available to its security holders (or otherwise provide in accordance with Section 11(a) of the Securities Act and Rule 158 thereunder) an earnings statement
satisfying the provisions of Section 11(a) of the Securities Act and Rule 158 thereunder, no later than 45 days after the end of a 12-month period (or 90 days, if such period is a fiscal year) beginning with the first month of the
Company’s first fiscal quarter commencing after the effective date of the Registration Statement, which statement shall cover such 12-month period. 

(m) The Company shall cause the Indenture to be qualified under the Trust Indenture Act of 1939, as amended, in a timely manner
as required by the rules and regulations of the Commission and containing such changes, if any, as shall be necessary for such qualification. In 

 
the event that such qualification would require the appointment of a new trustee under the Indenture, the Company shall appoint a new trustee thereunder pursuant to the applicable provisions of
the Indenture. 
 (n) The Company may require each Holder of Securities to be sold pursuant to the Shelf Registration
Statement to furnish to the Company such information regarding the Holder and the distribution of the Securities as the Company may from time to time reasonably require for inclusion in the Shelf Registration Statement, and the Company may exclude
from such registration the Securities of any Holder that unreasonably fails to furnish such information within a reasonable time after receiving such request. 

(o) The Company shall enter into such customary agreements (including, if requested, an underwriting agreement in customary
form) and take all such other action, if any, as any Holder shall reasonably request in order to facilitate the disposition of the Securities pursuant to any Shelf Registration. 

(p) In the case of any Shelf Registration, if requested by the Company subject to the delivery of customary confidentiality
agreements (with customary exceptions) by all parties prior to review of such information, the Company shall (i) make reasonably available for inspection by the Holders, any underwriter participating in any disposition pursuant to the Shelf
Registration Statement and any attorney, accountant or other agent retained by the Holders or any such underwriter, at reasonable times and in a reasonable manner, all relevant financial and other records, pertinent corporate documents and
properties of the Company and (ii) cause the Company’s officers, directors, employees, accountants and auditors to supply all relevant information reasonably requested by the Holders or any such underwriter, attorney, accountant or agent
in connection with the Shelf Registration Statement, in each case, as shall be reasonably necessary to enable such persons, to conduct a reasonable investigation within the meaning of Section 11 of the Securities Act; provided, however, that
the foregoing inspection and information gathering shall be coordinated on behalf of the Initial Purchasers by you and on behalf of the other parties, by one counsel designated by and on behalf of such other parties as described in Section 4
hereof, and the Company shall have no obligation to pay the fees and expenses of such persons or entities other than as contemplated by Section 4. 

(q) In the case of any Shelf Registration, the Company, if requested by any Holder of Securities covered thereby, shall cause:
(i) its counsel to deliver an opinion and negative assurance letter and updates thereof relating to the Securities addressed to such Holders and the Managing Underwriters (as defined in Section 8 hereof), if any, in form, scope and
substance reasonably satisfactory to the Managing Underwriters, covering the matters customarily covered in opinions and negative assurance letters, reasonably requested in underwritten offerings, and dated, in the case of the initial opinion and
negative assurance letter, the effective date of such Shelf Registration Statement; (ii) its officers to execute and deliver all customary documents and certificates and updates thereof requested by any underwriters of the applicable
Securities; (iii) its independent public accountants to provide to the selling Holders of the applicable Securities and any underwriter therefor a comfort letter in customary form and covering matters of the type customarily covered in comfort
letters in connection with primary underwritten offerings, subject to receipt of appropriate documentation as contemplated, and only if permitted, by Statement of Auditing Standards No. 72 (or any successor bulletins); and (iv) its
independent reserve engineers to provide to the selling Holders of the applicable Securities and any underwriter therefor a comfort letter in customary form and covering matters of the type customarily covered in comfort letters in connection with
primary underwritten offerings, subject to receipt of appropriate documentation as contemplated. 
 (r) In the case of the
Registered Exchange Offer, if requested by any Initial Purchaser or any known Participating Broker-Dealer, the Company shall cause (i) its counsel to deliver to such Initial Purchaser or such
Participating Broker-Dealer a signed opinions in the form set forth in Schedule E of the Purchase Agreement with such changes as are customary in connection with the 

 
preparation of a Registration Statement, (ii) its independent public accountants to deliver to such Initial Purchaser or such Participating Broker-Dealer a comfort letter, in customary form,
meeting the requirements as to the substance thereof as set forth in Schedule C of the Purchase Agreement, with appropriate date changes, and (iii) its independent reserve engineers to deliver to such Initial Purchaser or such Participating
Broker-Dealer a comfort letter, in customary form, meeting the requirements as to the substance thereof as set forth in Schedule F-1 and F-2 of the Purchase Agreement, with appropriate date changes, with appropriate date changes. 

(s) If a Registered Exchange Offer or a Private Exchange is to be consummated, upon delivery of the Initial Securities by
Holders to the Company (or to such other Person as directed by the Company) in exchange for the Exchange Securities or the Private Exchange Securities, as the case may be, the Company shall mark, or cause to be marked, on the Initial Securities so
exchanged that such Initial Securities are being canceled in exchange for the Exchange Securities or the Private Exchange Securities, as the case may be; in no event shall the Initial Securities be marked as paid or otherwise satisfied. 

(t) If so requested by Holders of a majority in aggregate principal amount of Securities covered by such Registration
Statement, or by the managing underwriters, if any, the Company will use its commercially reasonable efforts to (a) if the Initial Securities have been rated prior to the initial sale of such Initial Securities, confirm such ratings will apply
to the Securities covered by a Registration Statement, or (b) if the Initial Securities were not previously rated, cause the Securities covered by a Registration Statement to be rated with the appropriate rating agencies. 

(u) In the event that any broker-dealer registered under the Exchange Act shall underwrite any Securities or participate as a
member of an underwriting syndicate or selling group or “assist in the distribution” (within the meaning of the Conduct Rules (the “Rules”) of the Financial Industry Regulatory Authority, Inc. (“FINRA”))
thereof, whether as a Holder of such Securities or as an underwriter, a placement or sales agent or a broker or dealer in respect thereof, or otherwise, the Company will assist such broker-dealer in complying with the requirements of such Rules,
including, without limitation, by (i) if such Rules, including Rule 5121, shall so require, engaging a “qualified independent underwriter” (as defined in Rule 5121) to participate in the preparation of the Registration Statement
relating to such Securities, to exercise usual standards of due diligence in respect thereto and, if any portion of the offering contemplated by such Registration Statement is an underwritten offering or is made through a placement or sales agent,
to recommend the yield of such Securities, (ii) indemnifying any such qualified independent underwriter to the extent of the indemnification of underwriters provided in Section 5 hereof and (iii) providing such information to such
broker-dealer as may be required in order for such broker-dealer to comply with the requirements of the Rules. 
 (v) The
Company shall use its commercially reasonable efforts to take all other steps necessary to effect the registration of the Securities covered by a Registration Statement contemplated hereby. 

4. Registration Expenses. The Company shall bear all fees and expenses incurred in connection with the performance of its obligations
under Sections 1 through 3 hereof (including the reasonable fees and expenses, if any, of Cravath, Swaine & Moore LLP, counsel for the Initial Purchasers, incurred in connection with the Registered Exchange Offer), whether or not the
Registered Exchange Offer is consummated or a Registration Statement is filed or becomes effective, and, in the event of a Shelf Registration, shall bear or reimburse the Holders of the Securities covered thereby for the reasonable fees and
disbursements of one firm of counsel designated by the Holders of a majority in principal amount of the Initial Securities covered thereby to act as counsel for the Holders of the Initial Securities in connection therewith. 

5. Indemnification. (a) The Company agrees to indemnify and hold harmless each Holder, any Participating Broker-Dealer and each
person, if any, who controls such Holder or such Participating Broker-Dealer within the meaning of the Securities Act or the Exchange Act (each Holder, any 

 
Participating Broker-Dealer and such controlling persons are referred to collectively as the “Indemnified Parties”) from and against any losses, claims, damages or liabilities,
joint or several, or any actions in respect thereof (including, but not limited to, any losses, claims, damages, liabilities or actions relating to purchases and sales of the Securities) to which each Indemnified Party may become subject under the
Securities Act, the Exchange Act or otherwise, insofar as such losses, claims, damages, liabilities or actions arise out of or are based upon any untrue statement or alleged untrue statement of a material fact contained in a Registration Statement
or prospectus or in any amendment or supplement thereto or in any preliminary prospectus or “issuer free writing prospectus,” as defined in Commission Rule 433 (“Issuer FWP”), relating to a Shelf Registration, or
arise out of, or are based upon, the omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, and shall reimburse, as incurred, the Indemnified Parties
for any legal or other expenses reasonably incurred by them in connection with investigating or defending any such loss, claim, damage, liability or action in respect thereof; provided, however, that (i) the Company shall not be liable in any
such case to the extent that such loss, claim, damage or liability arises out of or is based upon any untrue statement or alleged untrue statement or omission or alleged omission made in a Registration Statement or prospectus or in any amendment or
supplement thereto or in any preliminary prospectus or Issuer FWP relating to a Shelf Registration in reliance upon and in conformity with written information pertaining to such Holder and furnished to the Company by or on behalf of such Holder
specifically for inclusion therein and (ii) with respect to any untrue statement or omission or alleged untrue statement or omission made in any preliminary prospectus relating to a Shelf Registration Statement, the indemnity agreement
contained in this subsection (a) shall not inure to the benefit of any Holder or Participating Broker-Dealer from whom the person asserting any such losses, claims, damages or liabilities purchased the Securities concerned, to the extent that a
prospectus relating to such Securities was required to be delivered (including through satisfaction of the conditions of Commission Rule 172) by such Holder or Participating Broker-Dealer under the Securities Act in connection with such
purchase and any such loss, claim, damage or liability of such Holder or Participating Broker-Dealer results from the fact that there was not conveyed to such person, at or prior to the time of the sale of such Securities to such person, an amended
or supplemented prospectus or, if permitted by Section 3(d), an Issuer FWP correcting such untrue statement or omission or alleged untrue statement or omission if the Company had previously furnished copies thereof to such Holder or
Participating Broker-Dealer; provided further, however, that this indemnity agreement will be in addition to any liability which the Company may otherwise have to such Indemnified Party. The Company shall also indemnify underwriters, their officers
and directors and each person who controls such underwriters within the meaning of the Securities Act or the Exchange Act to the same extent as provided above with respect to the indemnification of the Holders if requested by such Holders. 

(b) Each Holder, severally and not jointly, will indemnify and hold harmless the Company and each person, if any, who controls
the Company within the meaning of the Securities Act or the Exchange Act from and against any losses, claims, damages or liabilities or any actions in respect thereof, to which the Company or any such controlling person may become subject under the
Securities Act, the Exchange Act or otherwise, insofar as such losses, claims, damages, liabilities or actions arise out of or are based upon any untrue statement or alleged untrue statement of a material fact contained in a Registration Statement
or prospectus or in any amendment or supplement thereto or in any preliminary prospectus or Issuer FWP relating to a Shelf Registration, or arise out of or are based upon the omission or alleged omission to state therein a material fact necessary to
make the statements therein not misleading, but in each case only to the extent that the untrue statement or omission or alleged untrue statement or omission was made in reliance upon and in conformity with written information pertaining to such
Holder and furnished to the Company by or on behalf of such Holder specifically for inclusion therein; and, subject to the limitation set forth immediately preceding this clause, shall reimburse, as incurred, the Company for any legal or other
expenses reasonably incurred by the Company or any such controlling person in connection with investigating or defending any loss, claim, damage, liability or action in respect thereof. This indemnity agreement will be in addition to any liability
which such Holder may otherwise have to the Company or any of its controlling persons. 
 (c) Promptly after receipt by an
indemnified party under this Section 5 of notice of the commencement of any action or proceeding (including a governmental investigation), such indemnified party will, if a claim in respect thereof is to be made against the indemnifying party
under this Section 5, 

 
notify the indemnifying party of the commencement thereof; but the failure to notify the indemnifying party shall not relieve the indemnifying party from any liability that it may have under
Section 5(a) or Section 5(b) above except to the extent that it has been materially prejudiced (through the forfeiture of substantive rights or defenses) by such failure; and provided further that the failure to notify the indemnifying
party shall not relieve it from any liability that it may have to an indemnified party otherwise than under Section 5(a) or Section 5(b) above. In case any such action is brought against any indemnified party, and it notifies the
indemnifying party of the commencement thereof, the indemnifying party will be entitled to participate therein and, to the extent that it may wish, jointly with any other indemnifying party similarly notified, to assume the defense thereof, with
counsel reasonably satisfactory to such indemnified party (who shall not, except with the consent of the indemnified party, be counsel to the indemnifying party), and after notice from the indemnifying party to such indemnified party of its election
so to assume the defense thereof the indemnifying party will not be liable to such indemnified party under this Section 5 for any legal or other expenses, other than reasonable costs of investigation, subsequently incurred by such indemnified
party in connection with the defense thereof. No indemnifying party shall, without the prior written consent of the indemnified party effect any settlement of any pending or threatened action in respect of which any indemnified party is or could
have been a party and indemnity could have been sought hereunder by such indemnified party unless such settlement (i) includes an unconditional release of such indemnified party from all liability on any claims that are the subject matter of
such action, and (ii) does not include a statement as to or an admission of fault, culpability or a failure to act by or on behalf of any indemnified party. 

(d) If the indemnification provided for in this Section 5 is unavailable or insufficient to hold harmless an indemnified
party under Section 5(a) or Section 5(b) above, then each indemnifying party shall contribute to the amount paid or payable by such indemnified party as a result of the losses, claims, damages or liabilities (or actions in respect thereof)
referred to in Section 5(a) or Section 5(b) above (i) in such proportion as is appropriate to reflect the relative benefits received by the indemnifying party or parties on the one hand and the indemnified party on the other from the
exchange of the Securities, pursuant to the Registered Exchange Offer, or (ii) if the allocation provided by the foregoing clause (i) is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative
benefits referred to in clause (i) above but also the relative fault of the indemnifying party or parties on the one hand and the indemnified party on the other in connection with the statements or omissions that resulted in such losses,
claims, damages or liabilities (or actions in respect thereof) as well as any other relevant equitable considerations. The relative fault of the parties shall be determined by reference to, among other things, whether the untrue or alleged untrue
statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company on the one hand or such Holder or such other indemnified party, as the case may be, on the other, and the
parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. The amount paid by an indemnified party as a result of the losses, claims, damages or liabilities referred to in the
first sentence of this subsection (d) shall be deemed to include any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any action or claim which is the subject of this subsection
(d). Notwithstanding any other provision of this Section 5(d), the Holders shall not be required to contribute any amount in excess of the amount by which the net proceeds received by such Holders from the sale of the Securities pursuant to a
Registration Statement exceeds the amount of damages which such Holders have otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent misrepresentation
(within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. For purposes of this subsection (d), each person, if any, who controls such
indemnified party within the meaning of the Securities Act or the Exchange Act shall have the same rights to contribution as such indemnified party and each person, if any, who controls the Company within the meaning of the Securities Act or the
Exchange Act shall have the same rights to contribution as the Company. 
 (e) The agreements contained in this
Section 5 shall survive the sale of the Securities pursuant to a Registration Statement and shall remain in full force and effect, regardless of any termination or cancellation of this Agreement or any investigation made by or on behalf of any
indemnified party. 

 6. Additional Interest Under Certain Circumstances. (a) Additional interest (the
“Additional Interest”) with respect to the Initial Securities shall be assessed as follows if any of the following events occur (each such event in clauses (i) through (iv) below a “Registration Default”):

 (i) If the Shelf Registration Statement required by this Agreement is not filed with the Commission on or prior to the
Shelf Registration Filing Deadline (other than a failure to file the Exchange Offer Registration Statement if the Issuer has become obligated to file a Shelf Registration Statement); 

(ii) If on or prior to the 365th day following the Issue Date, the Registered Exchange Offer has not been consummated and the
Shelf Registration Statement has not been declared effective by the Commission; 
 (iii) If the Shelf Registration Statement
(if required in lieu of the Registered Exchange Offer) has not been declared effective by the Commission on or prior to the applicable date specified in Section 2(a) hereof; or 

(iv) If after either the Exchange Offer Registration Statement or the Shelf Registration Statement is declared (or becomes
automatically) effective (A) such Registration Statement thereafter ceases to be effective; or (B) such Registration Statement or the related prospectus ceases to be usable (except as permitted in Section 6(b) hereof) in connection
with resales of Transfer Restricted Securities during the periods specified herein, and in either case such failure to remain effective or usable, as the case may be, continues for 30 consecutive days or exists for more than an aggregate of 60 days
in any 12-month period, because either (1) any event occurs as a result of which the related prospectus forming part of such Registration Statement would include any untrue statement of a material fact or omit to state any material fact
necessary to make the statements therein in the light of the circumstances under which they were made not misleading, (2) it shall be necessary to amend such Registration Statement or supplement the related prospectus, to comply with the
Securities Act or the Exchange Act or the respective rules thereunder, or (3) such Registration Statement is a Shelf Registration Statement that has expired before a replacement Shelf Registration Statement has become effective. 

Additional Interest shall accrue on the principal amount of the Initial Securities over and above the interest set forth in the title of the Securities from
and including the date on which any such Registration Default shall occur to but excluding the earlier of (y) the date on which all such Registration Defaults have been cured and (z) the date on which no Notes are Transfer Restricted
Securities, at a rate of 0.25% per annum for the first 90-day period immediately following the occurrence of such Registration Default. The Additional Interest rate shall increase by an additional 0.25% per annum with respect to each
subsequent 90-day period until all Registration Defaults have been cured, up to a maximum Additional Interest rate of 0.5% per annum. 

(b) A Registration Default referred to in Section 6(a)(iii) hereof shall be deemed not to have occurred and be continuing
in relation to a Shelf Registration Statement or the related prospectus if (i) such Registration Default has occurred solely as a result of (x) the filing of a post-effective amendment to such Shelf Registration Statement to incorporate
annual audited financial information with respect to the Company where such post-effective amendment is not yet effective and needs to be declared effective to permit Holders to use the related prospectus or (y) other material events, with
respect to the Company that would need to be described in such Shelf Registration Statement or the related prospectus and (ii) in the case of clause (y), the Company is proceeding promptly and in good faith to amend or supplement such Shelf
Registration Statement and related prospectus to describe such events; provided, however, that in any case if such Registration Default occurs for a continuous period in excess of 30 days, Additional Interest shall be payable in accordance with the
above paragraph from the day such Registration Default occurs until such Registration Default is cured. 
 (c) The remedy set
forth in Section 6(a) hereof shall constitute liquidated damages and shall be the sole and exclusive remedy of the Holders for each and any Registration Default. 

 (d) Any amounts of Additional Interest due pursuant to Section 6(a) above
will be payable in cash on the regular interest payment dates with respect to the Transfer Restricted Securities. The amount of Additional Interest will be determined by multiplying the applicable Additional Interest rate by the principal amount of
the Transfer Restricted Securities, multiplied by a fraction, the numerator of which is the number of days such Additional Interest rate was applicable during such period (determined on the basis of a 360-day year comprised of twelve 30-day months),
and the denominator of which is 360. 
 (e) “Transfer Restricted Securities” means each Security until the
earliest of (i) the date on which such Transfer Restricted Security has been exchanged by a person other than a broker-dealer for a freely transferable Exchange Security in the Registered Exchange Offer, (ii) following the exchange by a
broker-dealer in the Registered Exchange Offer of an Initial Security for an Exchange Security, the date on which such Exchange Security is sold to a purchaser who receives from such broker-dealer on or prior to the date of such sale a copy of the
prospectus contained in the Exchange Offer Registration Statement, (iii) the date on which such Initial Security has been effectively registered under the Securities Act and disposed of in accordance with the Shelf Registration Statement; and
(iv) the date on which such Security is disposed of to the public in accordance with Rule 144 under the Securities Act. 

(f) Notwithstanding the foregoing in this Section 6: (i) the amount of Additional Interest payable shall not increase
because more than one Registration Default has occurred and is pending; (ii) a Holder of a Transfer Restricted Security who is not entitled to the benefits of the Shelf Registration Statement (i.e., such Holder has not elected to furnish
information to the Company in accordance with Section 3(n) hereof) shall not be entitled to Additional Interest with respect to a Registration Default relating to the Shelf Registration Statement; and (iii) no Holder who (x) was
eligible to exchange such Holder’s outstanding Securities at the time the Exchange Offer was pending and consummated and (y) failed to validly tender such Securities for exchange pursuant to the Exchange Offer shall be entitled to receive
any Additional Interest that would otherwise accrue subsequent to the date the Exchange Offer is consummated. 
 7. Rules 144 and
144A. The Company shall use its commercially reasonable efforts to file the reports required to be filed by it under the Securities Act and the Exchange Act in a timely manner and, if at any time the Company is not required to file such
reports, it will, upon the request of any Holder of Initial Securities, make publicly available other information so long as necessary to permit sales of their Securities pursuant to Rules 144 and 144A. The Company covenants that it will take
such further action as any Holder of Initial Securities may reasonably request, all to the extent required from time to time to enable such Holder to sell Initial Securities without registration under the Securities Act within the limitation of the
exemptions provided by Rules 144 and 144A (including the requirements of Rule 144A(d)(4)). To the extent not available on EDGAR, the Company will provide a copy of this Agreement to prospective purchasers of Initial Securities identified
to the Company by the Initial Purchasers upon request. Upon the request of any Holder of Initial Securities, the Company shall deliver to such Holder a written statement as to whether it has complied with such requirements. Notwithstanding the
foregoing, nothing in this Section 7 shall be deemed to require the Company to register any of its securities pursuant to the Exchange Act. 

8. Underwritten Registrations. Notwithstanding anything herein to the contrary, no Securities covered by a Shelf Registration
Statement may be sold in an underwritten offering under the Shelf Registration Statement without the prior written consent of the Company. If any of the Transfer Restricted Securities covered by any Shelf Registration are to be sold in an
underwritten offering, the investment banker or investment bankers and manager or managers that will administer the offering (“Managing Underwriters”) will be selected by the Holders of a majority in aggregate principal amount of
such Transfer Restricted Securities to be included in such offering, subject to the Company’s consent (which consent shall not be unreasonably withheld, conditioned or delayed). 

No person may participate in any underwritten registration hereunder unless such person (i) agrees to sell such person’s Transfer
Restricted Securities on the basis reasonably provided in any underwriting arrangements approved by the persons entitled hereunder to approve such arrangements and (ii) completes and executes all questionnaires, powers of attorney, indemnities,
underwriting agreements and other documents reasonably required under the terms of such underwriting arrangements. 

 9. Miscellaneous. 

(a) Amendments and Waivers. The provisions of this Agreement may not be amended, modified or supplemented, and
waivers or consents to departures from the provisions hereof may not be given, except by the Company and the written consent of the Holders of a majority in principal amount of the Securities affected by such amendment, modification, supplement,
waiver or consents. 
 (b) Notices. All notices and other communications provided for or permitted hereunder
shall be made in writing by hand delivery, first-class mail, facsimile transmission, or air courier which guarantees overnight delivery: 

(1) if to a Holder, at the most current address given by such Holder to the Company. 

(2) if to the Initial Purchasers: 

Credit Suisse Securities (USA) LLC 

Eleven Madison Avenue 
 New
York, NY 10010-3629 
 Fax No.: (212) 325-4296 

Attention: IBD-Legal 
 and 

Scotia Capital (USA) Inc. 
 250
Vesey Street 
 New York, NY 10281 

Attention: Debt Capital Markets 

with a copy to, which shall not constitute notice: 

Cravath, Swaine & Moore LLP 

Worldwide Plaza 
 825 Eighth
Avenue 
 New York, NY 10019 

Attention: William J. Whelan, III 

(3) if to the Company, at its address as follows: 

Gulfport Energy Corporation 

14313 North May Avenue, Suite 100 

Oklahoma City, OK 73134 
 Fax:
(405) 848-8816 
 Attention: Chief Financial Officer 

with a copy to, which shall not constitute notice: 

Akin Gump Strauss Hauer & Feld, LLP 

1700 Pacific Avenue, Suite 4100 

Dallas, TX 75201 
 Attention:
Seth R. Molay, P.C. 
 All such notices and communications shall be deemed to have been duly given: at the time delivered by hand, if
personally delivered; three business days after being deposited in the mail, postage prepaid, if mailed; when receipt is acknowledged by recipient’s facsimile machine operator, if sent by facsimile transmission; and on the day delivered, if
sent by overnight air courier guaranteeing next day delivery. 

 (c) No Inconsistent Agreements. The Company has not, as of the date
hereof, entered into, nor shall it, on or after the date hereof, enter into, any agreement with respect to its securities that is inconsistent with the rights granted to the Holders herein or otherwise conflicts with the provisions hereof. 

(d) Successors and Assigns. This Agreement shall be binding upon the Company and its successors and assigns. 

(e) Counterparts. This Agreement may be executed in any number of counterparts and by the parties hereto in
separate counterparts, each of which when so executed shall be deemed to be an original and all of which taken together shall constitute one and the same agreement. 

(f) Headings. The headings in this Agreement are for convenience of reference only and shall not limit or otherwise
affect the meaning hereof. 
 (g) Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE
WITH, THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAWS. 
 (h)
Severability. If any one or more of the provisions contained herein, or the application thereof in any circumstance, is held invalid, illegal or unenforceable, the validity, legality and enforceability of any such provision in every
other respect and of the remaining provisions contained herein shall not be affected or impaired thereby. 
 (i)
Securities Held by the Company. Whenever the consent or approval of Holders of a specified percentage of principal amount of Securities is required hereunder, Securities held by the Company or its affiliates (other than subsequent
Holders if such subsequent Holders are deemed to be affiliates solely by reason of their holdings of such Securities) shall not be counted in determining whether such consent or approval was given by the Holders of such required percentage. 

 If the foregoing is in accordance with your understanding of our agreement, please sign and
return to the Issuer a counterpart hereof, whereupon this instrument, along with all counterparts, will become a binding agreement among the several Initial Purchasers, the Issuer and the Guarantors in accordance with its terms. 

 

			
	Very truly yours,
	
	GULFPORT ENERGY CORPORATION
		
	By:		 /s/ Michael G. Moore

	Name:		Michael G. Moore
	Title:		Chief Executive Officer and President
	
	WESTHAWK MINERALS LLC
		
	By:		 /s/ Michael G. Moore

	Name:		Michael G. Moore
	Title:		Chief Executive Officer
	
	JAGUAR RESOURCES LLC
		
	By:		 /s/ Michael G. Moore

	Name:		Michael G. Moore
	Title:		Chief Executive Officer
	
	PUMA RESOURCES, INC.
		
	By:		 /s/ Michael G. Moore

	Name:		Michael G. Moore
	Title:		Chief Executive Officer

 [Signature Page to the Registration Rights Agreement] 

 
			
	GATOR MARINE, INC.
		
	By:		 /s/ Michael G. Moore

	Name:		Michael G. Moore
	Title:		Chief Executive Officer
	
	GATOR MARINE IVANHOE, INC.
		
	By:		 /s/ Michael G. Moore

	Name:		Michael G. Moore
	Title:		Chief Executive Officer

 [Signature Page to the Registration Rights Agreement] 

											
	 The foregoing Registration
 Rights
Agreement is hereby confirmed
 and accepted as of the date first

above written.
		
		
	 CREDIT SUISSE SECURITIES (USA) LLC

SCOTIA CAPITAL (USA) INC.
		
			
			 Acting on behalf of themselves
 and
as the Representatives of
 the several Purchasers
		
				
					BY CREDIT SUISSE SECURITIES (USA) LLC		
						
							By:		 /s/ Dave Alterman
		
							Name:		Dave Alterman		
							Title:		Managing Director		
				
					BY SCOTIA CAPITAL (USA) INC.		
						
							By:		 /s/ Paul McKeown
		
							Name:		Paul McKeown		
							Title:		Managing Director		

  
 [Signature Page to the
Registration Rights Agreement] 

 Each broker-dealer that receives Exchange Securities for its own account pursuant to the Exchange
Offer must acknowledge that it will deliver a prospectus in connection with any resale of such Exchange Securities. The Letter of Transmittal states that by so acknowledging and by delivering a prospectus, a broker-dealer will not be deemed to admit
that it is an “underwriter” within the meaning of the Securities Act. This Prospectus, as it may be amended or supplemented from time to time, may be used by a broker-dealer in connection with
resales of Exchange Securities received in exchange for Initial Securities where such Initial Securities were acquired by such broker-dealer as a result of market-making activities or other trading activities. The Company has agreed that, for a
period of 180 days after the Expiration Date (as defined herein), it will make this Prospectus available to any broker-dealer for use in connection with any such resale. See “Plan of Distribution.” 

 Each broker-dealer that receives Exchange Securities for its own account in exchange for
Securities, where such Initial Securities were acquired by such broker-dealer as a result of market-making activities or other trading activities, must acknowledge that it will deliver a prospectus in connection with any resale of such Exchange
Securities. See “Plan of Distribution.” 

 PLAN OF DISTRIBUTION 

Each broker-dealer that receives Exchange Securities for its own account pursuant to the Exchange Offer must acknowledge that it will deliver
a prospectus in connection with any resale of such Exchange Securities. This Prospectus, as it may be amended or supplemented from time to time, may be used by a broker-dealer in connection with resales of Exchange Securities received in exchange
for Initial Securities where such Initial Securities were acquired as a result of market-making activities or other trading activities. The Company has agreed that, for a period of 180 days after the Expiration Date, it will make this prospectus, as
amended or supplemented, available to any broker-dealer for use in connection with any such resale. In addition, until , 20 , all dealers effecting transactions in the Exchange Securities may be required to deliver a prospectus.(1) 
 The Company will not receive any proceeds from any sale of Exchange Securities by
broker-dealers. Exchange Securities received by broker-dealers for their own account pursuant to the Exchange Offer may be sold from time to time in one or more transactions in the over-the-counter market, in negotiated transactions, through the
writing of options on the Exchange Securities or a combination of such methods of resale, at market prices prevailing at the time of resale, at prices related to such prevailing market prices or negotiated prices. Any such resale may be made
directly to purchasers or to or through brokers or dealers who may receive compensation in the form of commissions or concessions from any such broker-dealer or the purchasers of any such Exchange Securities.
Any broker-dealer that resells Exchange Securities that were received by it for its own account pursuant to the Exchange Offer and any broker or dealer that participates in a distribution of such Exchange Securities may be deemed to be an
“underwriter” within the meaning of the Securities Act and any profit on any such resale of Exchange Securities and any commission or concessions received by any such persons may be deemed to be underwriting compensation under the
Securities Act. The Letter of Transmittal states that, by acknowledging that it will deliver and by delivering a prospectus, a broker-dealer will not be deemed to admit that it is an “underwriter” within the meaning of the Securities Act.

 For a period of 180 days after the Expiration Date the Company will promptly send additional copies of this Prospectus and any amendment
or supplement to this Prospectus to any broker-dealer that requests such documents in the Letter of Transmittal. The Company has agreed to pay all expenses incident to the Exchange Offer (including the expenses of one counsel for the Holders) other
than commissions or concessions of any brokers or dealers and will indemnify the Holders (including any broker-dealers) against certain liabilities, including liabilities under the Securities Act. 

 
  

	(1)	In addition, the legend required by Item 502(b) of Regulation S-K will appear on the back cover page of the Exchange Offer prospectus. 

 CHECK HERE IF YOU ARE A BROKER-DEALER AND WISH TO RECEIVE 10 ADDITIONAL COPIES OF THE PROSPECTUS
AND 10 COPIES OF ANY AMENDMENTS OR SUPPLEMENTS THERETO. 
  

			
	 Name:
		  

	 Address:
		  

			  

 If the undersigned is not a broker-dealer, the undersigned represents that it is not engaged in, and does not intend to
engage in, a distribution of Exchange Securities. If the undersigned is a broker-dealer that will receive Exchange Securities for its own account in exchange for Initial Securities that were acquired as a result of market-making activities or other
trading activities, it acknowledges that it will deliver a prospectus in connection with any resale of such Exchange Securities; however, by so acknowledging and by delivering a prospectus, the undersigned will not be deemed to admit that it is an
“underwriter” within the meaning of the Securities Act. 

 SCHEDULE A 
  

			
	 Subsidiary
	  	Jurisdiction of Incorporation
	Westhawk Minerals LLC	  	Delaware
	Jaguar Resources LLC	  	Delaware
	Puma Resources, Inc.	  	Delaware
	Gator Marine, Inc.	  	Delaware
	Gator Marine Ivanhoe, Inc.	  	DelawareEX-10.1

 Exhibit 10.1 

AMENDMENT NO.2 TO THE 

AGREEMENT AND PLAN OF MERGER 

This Amendment No. 2 (this “Amendment”) is made as of April 20, 2015 by and among Mavenir Systems, Inc., a Delaware
corporation (the “Company”), Mitel Networks Corporation, a Canadian corporation (“Parent”), and Roadster Subsidiary Corporation, a Delaware corporation and indirect wholly owned subsidiary of Parent (“Merger
Sub”) to amend that certain Agreement and Plan of Merger (as amended, the “Merger Agreement”), dated as of February 28, 2015 and amended by Amendment No. 1 dated as of April 10, 2015, by and among the Company, Parent and
Merger Sub. Capitalized terms used herein and not otherwise defined herein have the meanings set forth in the Merger Agreement. 
 WHEREAS,
pursuant to Section 11.02 of the Merger Agreement, the Merger Agreement may be amended, modified and supplemented in any and all respects by written agreement of the Parties at any time prior to the Closing Date with respect to any of the
terms contained therein (subject to certain limitations as set forth therein); and 
 WHEREAS, each of the Company, Parent and Merger Sub
believes that it is in their mutual best interests to amend the Merger Agreement as described below. 
 NOW, THEREFORE, in consideration of
the mutual agreements and covenants made herein and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Company, Parent and Merger Sub hereby amend the Merger Agreement as follows: 

1. Amendment to Section 6.02(b). Each of clauses (i), (ii) and (iii) and the last sentence of Section 6.02(b) of the Merger Agreement
shall be amended and restated in their entirety as follows (deleted language stricken-through; added language italicized and underscored): 

“ (i) the Company Board provides Parent at least four (4) one (1) Business
Days’ Day’s prior written notice of its intention to take such action (it being understood that the delivery of such notice and any amendment or update thereto and the determination to so deliver such
notice, update or amendment shall not, by itself, constitute a Company Adverse Recommendation Change), which notice shall include, as applicable, (A) the information with respect to the Superior Proposal that is specified in Section 6.02(b), as well
as a copy of such Acquisition Proposal and any related Alternative Acquisition Agreement, or (B) the facts and circumstances in reasonable detail of the Intervening Event; 

(ii) during the four (4) one (1) Business Days Day
following such written notice described in the foregoing clause (i) (or such shorter period as is specified in this Section 6.02(b) below), the Company Board and its Representatives have negotiated in good faith with Parent (to
the extent Parent desires to negotiate) regarding any revisions to the terms of this Agreement that may, at Parent’s sole discretion, be proposed by Parent in response to such Superior Proposal or Intervening Event, as applicable; provided,
that, for the sake of clarity, nothing in this clause (ii) shall in any way obligate the Company Board to refrain from making 

 
a Company Adverse Recommendation Change and, if applicable, authorizing the Company to enter into any Alternative Acquisition Agreement, in accordance with the terms of this Agreement; and 

(iii) at the end of the four (4) one (1) Business Day period described in the foregoing clause
(i), the Company Board concludes in good faith, after consultation with the Company’s outside legal counsel and financial advisors (and taking into account any adjustment or modification of the terms of this Agreement proposed and irrevocably
committed to in writing by Parent), that, as applicable (A) the Acquisition Proposal continues to be a Superior Proposal or (B) the Intervening Event continues to warrant a Company Adverse Recommendation Change and, in each case, that the failure to
make such Company Adverse Recommendation Change would be inconsistent with the fiduciary duties owed by the Company Board to the stockholders of the Company under applicable Law. 

Any material amendment or modification to any Superior Proposal will be deemed to be a new Acquisition Proposal for purposes of this
Section 6.02, and the Company shall promptly (but in any event within 24 hours of occurrence) notify Parent of any such new Acquisition Proposal and the Parties shall comply with the provisions of this Section 6.02(b) with respect thereto; provided,
however, that the “matching period” set forth above shall in such circumstance expire on the later of two (2) Business Days after the Company Board provides written notice of such new Acquisition Proposal to Parent and the end of the
original four (4) Business Day period described in clause (ii) above; provided, further, in In the event there is a Company Adverse Recommendation Change made in compliance with this Section 6.02(b) with respect to a Superior
Proposal, the Company shall only enter into an Alternative Acquisition Agreement with respect thereto by terminating this Agreement in accordance with Section 10.01(g). ” 

2. Amendment to Section 10.03(a). The definition of “Termination Fee” in Section 10.03(a) of the Merger Agreement shall be
amended by deleting the reference to “$20,625,000” and replacing it with “$8,400,000”. 
 3. Effectiveness. This
Amendment shall be effective and binding and the Merger Agreement shall be deemed amended upon its execution by all of the Parties. Except as expressly amended by Sections 1 and 2 of this Amendment, all terms and provisions of the
Merger Agreement shall be unmodified and remain in full force and effect. On and after the date hereof, each reference to the Merger Agreement shall mean and be a reference to the Merger Agreement as amended hereby, and this Amendment and the Merger
Agreement shall be read together and construed as a single instrument. 
 4. Miscellaneous. The following provisions of the Merger
Agreement are hereby incorporated by reference herein, mutatis mutandis: Section 11.05 (Notices); Section 11.06 (Counterparts; Effectiveness); Section 11.08 (Severability); Section 11.10 (Governing Law; Exclusive
Jurisdiction); Section 11.11 (Remedies; Enforcement); and Section 11.13 (Waiver of Jury Trial). 

  
 2 

 (Signature Page Follows) 

  
 3 

 IN WITNESS WHEREOF, the parties hereto have executed this Amendment as of the date first above
written. 
  

					
	MAVENIR SYSTEMS, INC.
		
	By:  		 /s/ Terry Hungle

			Name:		Terry Hungle
			Title:		Chief Financial Officer

  

					
	MITEL NETWORKS CORPORATION
		
	By:  		 /s/ Greg Hiscock

			Name:		Greg Hiscock
			Title:		Secretary

  

					
	ROADSTER SUBSIDIARY CORPORATION
		
	By:  		 /s/ Greg Hiscock

			Name:		Greg Hiscock
			Title:		Secretary

 [Signature Page to Amendment No. 2 to the
Agreement and Plan of Merger]

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