Document:

EX-10.1

 Exhibit 10.1 
 EXECUTION VERSION 
 ATLAS PIPELINE PARTNERS REGISTRATION RIGHTS AGREEMENT

 This REGISTRATION RIGHTS AGREEMENT is dated as of February 11, 2013 (the “Agreement”), by and among
ATLAS PIPELINE PARTNERS, L.P., a Delaware limited partnership (the “Partnership”), and ATLAS PIPELINE FINANCE CORPORATION, a Delaware corporation (the “Finance Co” and, together with the Partnership, the
“Issuers”), the subsidiaries of the Partnership named in Schedule I hereto (each individually, a “Guarantor” and collectively, the “Guarantors”), and the several Initial Purchasers listed in
Schedule II to the Purchase Agreement (defined below) (the “Initial Purchasers”). 
 The
Issuers, the Guarantors and the Initial Purchasers are parties to the Purchase Agreement dated January 28, 2013 (the “Purchase Agreement”), which provides for the sale by the Issuers to the Initial Purchasers of $650,000,000
aggregate principal amount of the Issuers’ 5 7/8% Senior Notes due 2023 (including the unconditional guarantees thereof on an unsecured senior basis as to principal,
premium, if any, and interest by the Guarantors, the “Securities”). As an inducement to the Initial Purchasers to enter into the Purchase Agreement, the Issuers have agreed to provide to the Initial Purchasers and their direct and
indirect transferees the registration rights set forth in this Agreement. The execution and delivery of this Agreement is a condition to the Initial Purchasers’ obligations under the Purchase Agreement. 

In consideration of the foregoing, the parties hereto agree as follows: 

1. Definitions. As used in this Agreement, the following terms shall have the following meanings: 

“Additional Guarantor” shall mean any subsidiary of the Partnership that executes a Subsidiary Guarantee under the Indenture
after the date of this Agreement. 
 “Business Day” shall mean any day that is not a Saturday, Sunday or other day on
which commercial banks in New York City are authorized or required by law to remain closed. 
 “Closing Date” shall
mean the Closing Date as defined in the Purchase Agreement. 
 “Exchange Act” shall mean the Securities Exchange Act
of 1934, as amended from time to time. 
 “Exchange Dates” shall have the meaning set forth in Section 2(a)(ii)
hereof. 

 “Exchange Offer” shall mean the exchange offer by the Partnership and the
Guarantors of Exchange Securities for Registrable Securities pursuant to Section 2(a) hereof. 
 “Exchange Offer
Registration” shall mean a registration under the Securities Act effected pursuant to Section 2(a) hereof. 

“Exchange Offer Registration Statement” shall mean an exchange offer registration statement on Form S-4 (or, if applicable, on
another appropriate form) and all amendments and supplements to such registration statement, in each case including the Prospectus contained therein, all exhibits thereto and any document incorporated by reference therein. 

“Exchange Securities” shall mean senior notes issued by the Issuers and guaranteed by the Guarantors under the Indenture
containing terms identical to the Securities (except that the Exchange Securities will not be subject to restrictions on transfer or to any increase in annual interest rate for failure to comply with this Agreement) and to be offered to Holders of
Securities in exchange for Securities pursuant to the Exchange Offer. 
 “Free Writing Prospectus” means each free
writing prospectus (as defined in Rule 405 under the Securities Act) prepared by or on behalf of the Issuers or used or referred to by the Issuers in connection with the sale of the Securities or Exchange Securities. 

“Guarantors” shall have the meaning set forth in the preamble and shall also include any Guarantor’s successors and any
Additional Guarantors. 
 “Holders” shall mean the Initial Purchasers, for so long as they own any Registrable
Securities, and each of their successors, assigns and direct and indirect transferees who become owners of Registrable Securities under the Indenture; provided that for purposes of Sections 4 and 5 of this Agreement, the term “Holders”
shall include Participating Broker-Dealers. 
 “Initial Purchasers” shall have the meaning set forth in the preamble.

 “Indenture” shall mean the Indenture relating to the Securities dated as of February 11, 2013 among the
Issuers, the Guarantors and U.S. Bank National Association, as trustee, and as the same may be amended from time to time in accordance with the terms thereof. 
 “Majority Holders” shall mean the Holders of a majority of the aggregate principal amount of outstanding Registrable Securities; provided that whenever the consent or approval of Holders of a
specified percentage of Registrable Securities is required hereunder, Registrable Securities owned directly or indirectly by the Issuers or any of their affiliates shall not be counted in determining whether such consent or approval was given by the
Holders of such required percentage or amount; and provided, further, that if the Issuers shall issue any additional Securities under the Indenture prior to the consummation of the Exchange Offer, or, if applicable, the effectiveness of any Shelf
Registration Statement, such additional Securities and Registrable Securities to which this Agreement relates shall be treated together as one class for purposes of determining whether the consent or approval of Holders of a specified percentage of
Registrable Securities has been obtained. 

  
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 “Participating Broker-Dealers” shall have the meaning set forth in
Section 4(a) hereof. 
 “Person” shall mean an individual, partnership, limited liability company, corporation,
trust or unincorporated organization, or a government or agency or political subdivision thereof. 
 “Prospectus”
shall mean the prospectus included in, or, pursuant to the rules and regulations of the Securities Act, deemed a part of, a Registration Statement, including any preliminary prospectus, and any such prospectus as amended or supplemented by any
prospectus supplement, including a prospectus supplement with respect to the terms of the offering of any portion of the Registrable Securities covered by a Shelf Registration Statement, and by all other amendments and supplements to such
prospectus, and in each case including any document incorporated by reference therein. 
 “Purchase Agreement” shall
have the meaning set forth in the preamble. 
 “Registrable Securities” shall mean the Securities; provided that the
Securities shall cease to be Registrable Securities (i) when a Registration Statement with respect to such Securities has been declared effective under the Securities Act and such Securities have been exchanged or disposed of pursuant to such
Registration Statement or (ii) when such Securities cease to be outstanding. 
 “Registration Expenses” shall
mean any and all expenses incident to performance of or compliance by the Issuers and the Guarantors with this Agreement, including, without limitation, (i) all SEC, stock exchange or Financial Industry Regulatory Authority registration and
filing fees, (ii) all fees and expenses incurred in connection with compliance with state securities or blue sky laws (including reasonable fees and disbursements of counsel for any Underwriters or Holders in connection with blue sky
qualification of any Exchange Securities or Registrable Securities), (iii) all expenses of any Persons in preparing or assisting in preparing, word processing, printing and distributing any Registration Statement, any Prospectus and any
amendments or supplements thereto, any underwriting agreements, securities sales agreements or other similar agreements and any other documents relating to the performance of and compliance with this Agreement, (iv) all rating agency fees,
(v) all fees and disbursements relating to the qualification of the Indenture under applicable securities laws, (vi) the fees and disbursements of the Trustee and its counsel, (vii) the fees and disbursements of counsel for the
Issuers and the Guarantors and, in the case of a Shelf Registration Statement, the reasonable fees and disbursements of one counsel for the Holders (which counsel shall be selected by the Majority Holders and which counsel may also be counsel for
the Initial Purchasers) and (viii) the fees and disbursements of the independent public accountants of the Issuers, including the expenses of any special audits or “comfort” letters required by or incident to the performance of and
compliance with this Agreement, but excluding fees and expenses of counsel to the Underwriters (other than fees and expenses set forth in clause (ii) above) or the Holders and underwriting discounts, commissions, brokerage commissions and
transfer taxes, if any, relating to the sale or disposition of Registrable Securities by a Holder. 

  
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 “Registration Statement” shall mean any registration statement of the Issuers and
the Guarantors that covers any of the Exchange Securities or Registrable Securities pursuant to the provisions of this Agreement and all amendments and supplements to any such registration statement, including post-effective amendments, in each case
including the Prospectus contained therein or deemed a part thereof, all exhibits thereto and any document incorporated by reference therein. 
 “SEC” shall mean the Securities and Exchange Commission. 

“Securities Act” shall mean the Securities Act of 1933, as amended from time to time. 

“Shelf Effectiveness Period” shall have the meaning set forth in Section 2(b) hereof. 

“Shelf Registration” shall mean a registration effected pursuant to Section 2(b) hereof. 

“Shelf Registration Statement” shall mean a “shelf” registration statement of the Issuers and the Guarantors that
covers all or a portion of the Registrable Securities (but no other securities unless approved by a majority of the Holders whose Registrable Securities are to be covered by such Shelf Registration Statement) on an appropriate form under Rule 415
under the Securities Act, or any similar rule that may be adopted by the SEC, and all amendments and supplements to such registration statement, including post-effective amendments, in each case including the Prospectus contained therein or deemed a
part thereof, all exhibits thereto and any document incorporated by reference therein. 
 “Subsidiary Guarantees”
shall mean the guarantees of the Securities and the Exchange Securities by the Guarantors under the Indenture. 
 “Trust
Indenture Act” shall mean the Trust Indenture Act of 1939, as amended from time to time. 
 “Trustee” shall mean
the trustee with respect to the Securities under the Indenture. 
 “Underwriter” shall have the meaning set forth in
Section 3 hereof. 
 “Underwritten Offering” shall mean an offering in which Registrable Securities are sold to
an Underwriter for reoffering to the public. 

  
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 2. Registration Under the Securities Act. (a) To the extent not prohibited by
any applicable law or applicable interpretations of the Staff of the SEC, the Issuers shall use their reasonable best efforts to (i) cause to be filed an Exchange Offer Registration Statement covering an offer to the Holders to exchange all the
Registrable Securities for Exchange Securities, (ii) consummate the Exchange Offer no later than 360 days after the Closing Date and (iii) have such Registration Statement remain effective until 180 days after the last Exchange Date for
use by one or more Participating Broker-Dealers. The Issuers and the Guarantors shall commence the Exchange Offer promptly after the Exchange Offer Registration Statement is declared effective by the SEC and use their reasonable best efforts to
complete the Exchange Offer not later than 60 days after such effective date. 
 The Issuers and the Guarantors shall commence
the Exchange Offer by mailing the related Prospectus, appropriate letters of transmittal and other accompanying documents to each Holder stating, in addition to such other disclosures as are required by applicable law, 

 

	 	(i)	that the Exchange Offer is being made pursuant to this Agreement and that all Registrable Securities validly tendered and not properly withdrawn will be accepted for
exchange; 

  

	 	(ii)	the dates of acceptance for exchange (which shall be a period of at least 20 Business Days from the date such notice is mailed) (the “Exchange Dates”);

  

	 	(iii)	that any Registrable Security not tendered will remain outstanding and continue to accrue interest but will not retain any rights under this Agreement, except as
otherwise specified herein; 

  

	 	(iv)	that any Holder electing to have a Registrable Security exchanged pursuant to the Exchange Offer will be required to (A) surrender such Registrable Security,
together with the appropriate letters of transmittal, to the institution and at the address (located in the Borough of Manhattan, The City of New York) and in the manner specified in the notice, or (B) effect such exchange otherwise in
compliance with the applicable procedures of the depositary for such Registrable Security, in each case, prior to the close of business on the last Exchange Date; and 

 

	 	(v)	that any Holder will be entitled to withdraw its election, not later than the close of business on the last Exchange Date, by (A) sending to the institution and at
the address (located in the Borough of Manhattan, The City of New York) specified in the notice, a telegram, telex, facsimile transmission or letter setting forth the name of such Holder, the principal amount of Registrable Securities delivered for
exchange and a statement that such Holder is withdrawing its election to have such Securities exchanged or (B) effecting such withdrawal in compliance with the applicable procedures of the depositary for the Registrable Securities.

  
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 As a condition to participating in the Exchange Offer, a Holder will be required to
represent to the Issuers and the Guarantors that (i) any Exchange Securities to be received by it will be acquired in the ordinary course of its business, (ii) at the time of the commencement of the Exchange Offer it has no arrangement or
understanding with any Person to participate in the distribution (within the meaning of the Securities Act) of the Exchange Securities in violation of the provisions of the Securities Act, (iii) it is not an “affiliate” (within the
meaning of Rule 405 under the Securities Act) of the Issuers or any Guarantor and (iv) if such Holder is a broker-dealer that will receive Exchange Securities for its own account in exchange for Registrable Securities that were acquired as a
result of market-making or other trading activities, then such Holder will deliver a Prospectus (or, to the extent permitted by law, make available a Prospectus to purchasers) in connection with any resale of such Exchange Securities. 

As soon as practicable after the last Exchange Date, the Issuers and the Guarantors shall: 

 

	 	(i)	accept for exchange Registrable Securities or portions thereof validly tendered and not properly withdrawn pursuant to the Exchange Offer; and 

 

	 	(ii)	deliver, or cause to be delivered, to the Trustee for cancellation all Registrable Securities or portions thereof so accepted for exchange by the Issuers and issue, and
cause the Trustee to promptly authenticate and deliver to each Holder, Exchange Securities equal in principal amount to the principal amount of the Registrable Securities tendered by such Holder. 

The Issuers and the Guarantors shall use their reasonable best efforts to complete the Exchange Offer as provided above and shall comply
with the applicable requirements of the Securities Act, the Exchange Act and other applicable laws and regulations in connection with the Exchange Offer. The Exchange Offer shall not be subject to any conditions, other than that the Exchange Offer
does not violate any applicable law or applicable interpretations of the Staff of the SEC. 
 (b) In the event that (i) the
Issuers and the Guarantors determine that the Exchange Offer Registration provided for in Section 2(a) above is not available or may not be completed as soon as practicable after the last Exchange Date because it would violate any applicable
law or applicable interpretations of the Staff of the SEC, (ii) the Exchange Offer is not for any other reason completed within 360 calendar days following the Closing Date, (iii) upon receipt of a written request from any Initial
Purchaser representing that it holds Registrable Securities that are or were ineligible to be exchanged in the Exchange Offer or (iv) in the case of any Holder that participates in the Exchange Offer, such Holder does not receive Exchange
Securities on the date of the exchange that may be sold without restriction under state and federal securities laws (other than due solely to the status of such Holder as an affiliate of either Issuer within the meaning of the Securities Act) and so
notifies (such notification or written request pursuant to the preceding clause (iii), a “Shelf Request”) the Issuers within 30 days after such Holder first becomes aware of such restrictions, the Issuers and the Guarantors shall
use their reasonable best efforts to cause to be filed as soon as practicable after such determination, 

  
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date or Shelf Request, as the case may be, a Shelf Registration Statement providing for the sale of all the Registrable Securities by the Holders thereof and to have such Shelf Registration
Statement become effective. 
 In the event that the Issuers and the Guarantors are required to file a Shelf Registration
Statement pursuant to clauses (iii) or (iv) of the preceding sentence, the Issuers and the Guarantors shall use their reasonable best efforts to file and become effective both an Exchange Offer Registration Statement pursuant to
Section 2(a) with respect to all Registrable Securities and a Shelf Registration Statement (which may be a combined Registration Statement with the Exchange Offer Registration Statement) with respect to offers and sales of Registrable
Securities held by the Initial Purchasers or such Holder after completion of the Exchange Offer. 
 The Issuers and the
Guarantors agree to use their reasonable best efforts (i) to file the Shelf Registration Statement as promptly as practicable but in any event by the 30th day after they become obligated to make the filing, (ii) to cause the registration
statement to become effective within 60 days after such filing and (iii) to keep the Shelf Registration Statement continuously effective until the second anniversary of the Closing Date or such shorter period that will terminate when all the
Registrable Securities covered by the Shelf Registration Statement have been sold pursuant to the Shelf Registration Statement (the “Shelf Effectiveness Period”). The Issuers and the Guarantors further agree to supplement or amend
the Shelf Registration Statement and the related Prospectus if required by the rules, regulations or instructions applicable to the registration form used by the Issuers for such Shelf Registration Statement or by the Securities Act or by any other
rules and regulations thereunder or if reasonably requested by a Holder of Registrable Securities with respect to information relating to such Holder, and to use their reasonable best efforts to cause any such amendment to become effective and such
Shelf Registration Statement and Prospectus to become usable as soon as thereafter practicable. The Issuers and the Guarantors agree to furnish to the Holders of Registrable Securities copies of any such supplement or amendment promptly after its
being used or filed with the SEC. 
 (c) The Issuers and the Guarantors shall pay all Registration Expenses in connection with
any registration pursuant to Section 2(a) or Section 2(b) hereof. Each Holder shall pay all underwriting discounts and commissions, brokerage commissions and transfer taxes, if any, relating to the sale or disposition of such Holder’s
Registrable Securities pursuant to the Shelf Registration Statement. 
 (d) An Exchange Offer Registration Statement pursuant to
Section 2(a) hereof or a Shelf Registration Statement pursuant to Section 2(b) hereof will not be deemed to have become effective unless it has been declared effective by the SEC. 

In the event that either the Exchange Offer is not completed or the Shelf Registration Statement, if required pursuant to
Section 2(b)(i) or 2(b)(ii) hereof, does not become effective on or prior to the 360th calendar day after the Closing Date (the “Target Registration Date”), the interest rate on the Securities will be increased by
(i) 0.25% per annum for the first 90 day period immediately following the Target Registration Date and (ii) an additional 

  
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0.25% per annum with respect to each subsequent 90 day period, in each case until the Exchange Offer is completed or the Shelf Registration Statement, if required hereby, becomes effective
up to a maximum increase of 1.00% per annum. In the event that the Company receives a Shelf Request pursuant to Section 2(b)(iii), and the Shelf Registration Statement required to be filed thereby does not become effective by the later of
(x) the 360th calendar day after the Closing Date or (y) 90 days after the obligation to file such Shelf Registration arises pursuant to Section 2(b) (such later date, the “Shelf Additional Interest Date”), then the interest
rate on the Securities will be increased by 0.25% per annum for the first 90 day period payable commencing from one day after the Shelf Additional Interest Date and (ii) an additional 0.25% per annum with respect to each subsequent 90
day period, in each case until the Shelf Registration Statement becomes effective up to a maximum increase of 1.00% per annum. 
 If the Shelf Registration Statement, if required hereby, has become effective and thereafter either ceases to be effective or the Prospectus contained therein ceases to be usable, in each case whether or
not permitted by this Agreement, at any time during the Shelf Effectiveness Period, and such failure to remain effective or usable exists for more than 30 days (whether or not consecutive) in any 12-month period, then the interest rate on the
Securities will be increased by (i) 0.25% per annum for the first 90 day period commencing on the 31st day in such 12-month period and (ii) an additional 0.25% per annum with respect to each subsequent 90 day period up to a
maximum of 1.00% per annum and ending on such date that the Shelf Registration Statement has again become effective or the Prospectus again becomes usable. 
 (e) Without limiting the remedies available to the Initial Purchasers and the Holders, the Issuers acknowledge that any failure by the Issuers to comply with their obligations under Section 2(a) and
Section 2(b) hereof may result in material irreparable injury to the Initial Purchasers or the Holders for which there is no adequate remedy at law, that it will not be possible to measure damages for such injuries precisely and that, in the
event of any such failure, the Initial Purchasers or any Holder may obtain such relief as may be required to specifically enforce the Issuers’ and the Guarantors’ obligations under Section 2(a) and Section 2(b) hereof.

 3. Registration Procedures. In connection with their obligations pursuant to Section 2(a) and Section 2(b)
hereof, the Issuers and the Guarantors shall as expeditiously as possible 
 (a) prepare and file with the SEC a
Registration Statement on the appropriate form under the Securities Act, which form (x) shall be selected by the Issuers and the Guarantors, (y) shall, in the case of a Shelf Registration, be available for the sale of the Registrable
Securities by the Holders thereof and (z) shall comply as to form in all material respects with the requirements of the applicable form and include all financial statements required by the SEC to be filed therewith; and use their reasonable
best efforts to cause such Registration Statement to become effective and remain effective for the applicable period in accordance with Section 2 hereof; 

  
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 (b) prepare and file with the SEC such amendments and post-effective
amendments to each Registration Statement as may be necessary to keep such Registration Statement effective for the applicable period in accordance with Section 2 hereof and cause each Prospectus to be supplemented by any required prospectus
supplement and, as so supplemented, to be filed pursuant to Rule 424 under the Securities Act; and keep each Prospectus current during the period described in Section 4(3) of and Rule 174 under the Securities Act that is applicable to
transactions by brokers or dealers with respect to the Registrable Securities or Exchange Securities; 
 (c) in
the case of a Shelf Registration, furnish to each Holder of Registrable Securities, to counsel for the Initial Purchasers, to counsel for such Holders and to each Underwriter of an Underwritten Offering of Registrable Securities, if any, without
charge, as many copies of each Prospectus, including each preliminary prospectus, and any amendment or supplement thereto, in order to facilitate the sale or other disposition of the Registrable Securities thereunder; and the Issuers consent to the
use of such Prospectus and any amendment or supplement thereto in accordance with applicable law by each of the Holders of Registrable Securities and any such Underwriters in connection with the offering and sale of the Registrable Securities
covered by and in the manner described in such Prospectus, preliminary prospectus or any amendment or supplement thereto in accordance with applicable law; 
 (d) use their reasonable best efforts to register or qualify the Registrable Securities under all applicable state securities or blue sky laws of such jurisdictions as any Holder of Registrable Securities
covered by a Registration Statement shall reasonably request in writing by the time the applicable Registration Statement is declared effective by the SEC; cooperate with the Holders in connection with any filings required to be made with the
Financial Industry Regulatory Authority; and do any and all other acts and things that may be reasonably necessary or advisable to enable each Holder to complete the disposition in each such jurisdiction of the Registrable Securities owned by such
Holder; provided that neither Issuer shall be required to (i) qualify as a foreign corporation or other entity or as a dealer in securities in any such jurisdiction where it would not otherwise be required to so qualify, (ii) file any
general consent to service of process in any such jurisdiction or (iii) subject itself to taxation in any such jurisdiction if it is not so subject; 
 (e) in the case of a Shelf Registration, notify each Holder of Registrable Securities, counsel for such Holders and counsel for the Initial Purchaser promptly and, if requested by any such Holder or
counsel, confirm such advice in writing (i) when a Registration Statement has become effective and when any post-effective amendment thereto has been filed and becomes effective, (ii) of any request by the SEC or any state securities
authority for amendments and supplements to a Registration Statement and Prospectus or for additional information after the Registration Statement has become effective, (iii) of the issuance by the SEC or any state securities authority of any
stop order suspending the effectiveness of a Registration Statement or the initiation of any proceedings for that purpose, including the receipt by the Issuers of any notice of objection of the SEC to the use of a Shelf Registration Statement or

  
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any post-effective amendment thereto pursuant to Rule 401(g)(2) under the Securities Act, (iv) if, between the applicable effective date of a Shelf Registration Statement and the closing of
any sale of Registrable Securities covered thereby, the representations and warranties of any Issuer or Guarantor contained in any underwriting agreement, securities sales agreement or other similar agreement, if any, relating to an offering of such
Registrable Securities cease to be true and correct in all material respects or if any Issuer or any Guarantor receives any notification with respect to the suspension of the qualification of the Registrable Securities for sale in any jurisdiction
or the initiation of any proceeding for such purpose, (v) of the happening of any event during the period a Shelf Registration Statement is effective that makes any statement made in such Registration Statement or the related Prospectus untrue
in any material respect or that requires the making of any changes in such Registration Statement or Prospectus in order to make the statements therein not misleading and (vi) of any determination by any Issuer that a post-effective amendment
to a Registration Statement or any amendment or supplement to the Prospectus would be appropriate; 
 (f) use
their reasonable best efforts to obtain the withdrawal of any order suspending the effectiveness of a Registration Statement or, in the case of a Shelf Registration, the resolution of any objection of the SEC pursuant to Rule 401(g)(2), including by
filing an amendment to such Shelf Registration Statement on the proper form, at the earliest possible moment and provide immediate notice to each Holder of the withdrawal of any such order or such resolution; 

(g) in the case of a Shelf Registration, furnish to each Holder of Registrable Securities, without charge, at least one
conformed copy of each Registration Statement and any post-effective amendment thereto (without any documents incorporated therein by reference or exhibits thereto, unless requested); 

(h) in the case of a Shelf Registration, cooperate with the selling Holders of Registrable Securities to facilitate the
timely preparation and delivery of certificates representing Registrable Securities to be sold and not bearing any restrictive legends and enable such Registrable Securities to be issued in such denominations and registered in such names (consistent
with the provisions of the Indenture) as the selling Holders may reasonably request at least one Business Day prior to the closing of any sale of Registrable Securities; 

(i) in the case of a Shelf Registration, upon the occurrence of any event contemplated by Section 3(e)(v) hereof, use
their reasonable best efforts to prepare and file with the SEC a supplement or post-effective amendment to such Shelf Registration Statement or the related Prospectus or any document incorporated therein by reference or file any other required
document so that, as thereafter delivered to purchasers of the Registrable Securities, such Prospectus will not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements therein, in the light
of the circumstances under which they were made, not misleading; and the Issuers and the Guarantors shall notify the Holders of Registrable Securities to suspend use of the Prospectus as promptly as practicable after the occurrence

  
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of such an event, and such Holders hereby agree to suspend use of the Prospectus until the Issuers and the Guarantors have amended or supplemented the Prospectus to correct such misstatement or
omission; 
 (j) a reasonable time prior to the filing of any Registration Statement, any Prospectus, any
amendment to a Registration Statement or amendment or supplement to a Prospectus or of any document that is to be incorporated by reference into a Registration Statement or a Prospectus after initial filing of a Registration Statement, provide
copies of such document to the Initial Purchasers and their counsel (and, in the case of a Shelf Registration Statement, to the Holders of Registrable Securities and their counsel) and make such of the representatives of the Issuers and the
Guarantors as shall be reasonably requested by the Initial Purchasers and their counsel (and, in the case of a Shelf Registration Statement, the Holders of Registrable Securities or their counsel) available for discussion of such document; and the
Issuers and the Guarantors shall not, at any time after initial filing of a Registration Statement, use or file any Prospectus, any amendment of or supplement to a Registration Statement or a Prospectus, or any document that is to be incorporated by
reference into a Registration Statement or a Prospectus, of which the Initial Purchasers and their counsel (and, in the case of a Shelf Registration Statement, the Holders of Registrable Securities and their counsel) shall not have previously been
advised and furnished a copy or to which the Initial Purchasers or their counsel (and, in the case of a Shelf Registration Statement, the Holders of Registrable Securities or their counsel) shall object; 

(k) obtain a CUSIP number for all Exchange Securities or Registrable Securities, as the case may be, not later than the
effective date of a Registration Statement; 
 (l) cause the Indenture to be qualified under the Trust Indenture
Act in connection with the registration of the Exchange Securities or Registrable Securities, as the case may be; cooperate with the Trustee and the Holders to effect such changes to the Indenture as may be required for the Indenture to be so
qualified in accordance with the terms of the Trust Indenture Act; and execute, and use their reasonable best efforts to cause the Trustee to execute, all documents as may be required to effect such changes and all other forms and documents required
to be filed with the SEC to enable the Indenture to be so qualified in a timely manner; 
 (m) in the case of a
Shelf Registration, make available for inspection by a representative of the Holders of the Registrable Securities (an “Inspector”), any Underwriter participating in any disposition pursuant to such Shelf Registration Statement, and
attorneys and accountants designated by the Holders, at reasonable times and in a reasonable manner, all pertinent financial and other records, documents and properties of the Issuers and the Guarantors, and cause the respective officers, directors
and employees of the Issuers and the Guarantors to supply all information reasonably requested by any such Inspector, Underwriter, attorney or accountant in connection with a Shelf Registration Statement; provided that if any such information is
identified by the Issuers as being confidential or proprietary, each Person receiving such 

  
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information shall take such actions as are reasonably necessary to protect the confidentiality of such information to the extent such action is otherwise not inconsistent with, an impairment of
or in derogation of the rights and interests of any Inspector, Holder or Underwriter; 
 (n) in the case of a
Shelf Registration, use their reasonable best efforts to cause all Registrable Securities to be listed on any securities exchange or any automated quotation system on which similar securities issued or guaranteed by any Issuer or any Guarantor are
then listed if requested by the Majority Holders, to the extent such Registrable Securities satisfy applicable listing requirements; 
 (o) if reasonably requested by any Holder of Registrable Securities covered by a Registration Statement, promptly incorporate in a Prospectus supplement or post-effective amendment such information with
respect to such Holder as such Holder reasonably requests to be included therein and make all required filings of such Prospectus supplement or such post-effective amendment as soon as the Issuers have received notification of the matters to be
incorporated in such filing; 
 (p) in the case of a Shelf Registration, enter into such customary agreements and
take all such other actions in connection therewith (including those requested by the Holders of a majority in principal amount of the Registrable Securities being sold) in order to expedite or facilitate the disposition of such Registrable
Securities including, but not limited to, an Underwritten Offering and in such connection, (i) to the extent possible, make such representations and warranties to the Holders and any Underwriters of such Registrable Securities with respect to
the business of the Partnership and its subsidiaries, the Registration Statement, Prospectus and documents incorporated by reference or deemed incorporated by reference, if any, in each case, in form, substance and scope as are customarily made by
issuers to underwriters in underwritten offerings and confirm the same if and when requested, (ii) obtain opinions of counsel to the Issuers (which counsel and opinions, in form, scope and substance, shall be reasonably satisfactory to the
Holders and such Underwriters and their respective counsel) addressed to each selling Holder and Underwriter of Registrable Securities, covering the matters customarily covered in opinions requested in underwritten offerings, (iii) obtain
“comfort” letters from the independent certified public accountants of the Issuers (and, if necessary, any other certified public accountant of any subsidiary of the Issuers or any Guarantor, or of any business acquired by the Issuers or
any Guarantor for which financial statements and financial data are or are required to be included in the Registration Statement) addressed to each selling Holder and Underwriter of Registrable Securities, such letters to be in customary form and
covering matters of the type customarily covered in “comfort” letters in connection with underwritten offerings and (iv) deliver such documents and certificates as may be reasonably requested by the Holders of a majority in principal
amount of the Registrable Securities being sold or the Underwriters, and which are customarily delivered in underwritten offerings, to evidence the continued validity of the representations and warranties of the Issuers made pursuant to clause
(i) above and to evidence compliance with any customary conditions contained in an underwriting agreement; and 

  
 12 

 (q) so long as any Registrable Securities remain outstanding, cause each
Additional Guarantor upon the creation or acquisition by the Partnership of such Additional Guarantor, to execute a counterpart to this Agreement in the form attached hereto as Annex A and to deliver such counterpart, together with an opinion of
counsel as to the enforceability thereof against such entity if required by the Indenture, to the Initial Purchasers no later than five Business Days following the execution thereof. 

In the case of a Shelf Registration Statement, the Issuers may require each Holder of Registrable Securities to furnish to the Issuers
such information regarding such Holder and the proposed disposition by such Holder of such Registrable Securities as the Issuers may from time to time reasonably request in writing. 

In the case of a Shelf Registration Statement, each Holder of Registrable Securities agrees that, upon receipt of any notice from the
Issuers of the happening of any event of the kind described in Section 3(e)(v) hereof, such Holder will forthwith discontinue disposition of Registrable Securities pursuant to a Registration Statement until such Holder’s receipt of the
copies of the supplemented or amended Prospectus contemplated by Section 3(i) hereof and, if so directed by the Issuers, such Holder will deliver to the Issuers all copies in its possession, other than permanent file copies then in such
Holder’s possession, of the Prospectus covering such Registrable Securities that is current at the time of receipt of such notice. 
 If the Issuers shall give any such notice to suspend the disposition of Registrable Securities pursuant to a Registration Statement, the Issuers shall extend the period during which the Registration
Statement shall be maintained effective pursuant to this Agreement by the number of days during the period from and including the date of the giving of such notice to and including the date when the Holders shall have received copies of the
supplemented or amended Prospectus necessary to resume such dispositions. The Issuers may give any such notice only twice during any 365-day period and any such suspensions shall not exceed 30 days for each suspension and there shall not be more
than two suspensions in effect during any 365-day period. 
 The Holders of Registrable Securities covered by a Shelf
Registration Statement who desire to do so may sell such Registrable Securities in an Underwritten Offering. In any such Underwritten Offering, the investment bank or investment banks and manager or managers (the “Underwriters”)
that will administer the offering will be selected by the Majority Holders of the Registrable Securities included in such offering. 

  
 13 

 4. Participation of Broker-Dealers in Exchange Offer. (a) The Staff of the SEC
has taken the position that any broker-dealer that receives Exchange Securities for its own account in the Exchange Offer in exchange for Securities that were acquired by such broker-dealer as a result of market-making or other trading activities (a
“Participating Broker-Dealer”) may be deemed to be an “underwriter” within the meaning of the Securities Act and must deliver a prospectus meeting the requirements of the Securities Act in connection with any resale of
such Exchange Securities. 
 The Issuers understand that it is the Staff’s position that if the Prospectus contained in the
Exchange Offer Registration Statement includes a plan of distribution containing a statement to the above effect and the means by which Participating Broker-Dealers may resell the Exchange Securities, without naming the Participating Broker-Dealers
or specifying the amount of Exchange Securities owned by them, such Prospectus may be delivered by Participating Broker-Dealers to satisfy their prospectus delivery obligation under the Securities Act in connection with resales of Exchange
Securities for their own accounts, so long as the Prospectus otherwise meets the requirements of the Securities Act. 
 (b) In
light of the above, and notwithstanding the other provisions of this Agreement, the Issuers agree to amend or supplement the Prospectus contained in the Exchange Offer Registration Statement, as would otherwise be contemplated by Section 3(i),
for a period of up to 180 days after the last Exchange Date (as such period may be extended pursuant to the penultimate paragraph of Section 3 of this Agreement), if requested by the Initial Purchasers or by one or more Participating
Broker-Dealers, in order to expedite or facilitate the disposition of any Exchange Securities by Participating Broker-Dealers consistent with the positions of the Staff recited in Section 4(a) above. The Issuers further agree that Participating
Broker-Dealers shall be authorized to deliver such Prospectus during such period in connection with the resales contemplated by this Section 4. 
 (c) The Initial Purchasers shall have no liability to any Issuer, any Guarantor or any Holder with respect to any request that they may make pursuant to Section 4(b) above. 

5. Indemnification and Contribution. (a) Each Issuer and each Guarantor, jointly and severally, agrees to indemnify and hold
harmless the Initial Purchasers and each Holder, their respective affiliates, directors and officers and each Person, if any, who controls an Initial Purchasers or any Holder within the meaning of Section 15 of the Securities Act or
Section 20 of the Exchange Act, from and against any and all losses, claims, damages and liabilities (including, without limitation, legal fees and other expenses incurred in connection with any suit, action or proceeding or any claim asserted,
as such fees and expenses are incurred), joint or several, that arise out of, or are based upon, (1) any untrue statement or alleged untrue statement of a material fact contained in any Registration Statement or any Prospectus or any omission
or alleged omission to state therein 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, or (2) any untrue statement
or alleged untrue statement of a material fact contained in any Prospectus, any Free Writing Prospectus used in violation of this Agreement or any “issuer information” (“Issuer Information”) filed or required

  
 14 

 
to be filed pursuant to Rule 433(d) under the Securities Act, or any omission or alleged omission to state therein a material fact necessary in order to make the statements therein, in the light
of the circumstances under which they were made, not misleading, in each case, except insofar as such losses, claims, damages or liabilities arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission
made in reliance upon and in conformity with any information relating to the Initial Purchasers or any Holder furnished to the Issuers in writing by the Initial Purchasers through Merrill Lynch, Pierce, Fenner & Smith Incorporated or any
selling Holder expressly for use therein. In connection with any Underwritten Offering permitted by Section 3, the Issuers and the Guarantors, jointly and severally, will also indemnify the Underwriters, if any, selling brokers, dealers and
similar securities industry professionals participating in the distribution, their respective affiliates and each Person who controls such Persons (within the meaning of the Securities Act and the Exchange Act) to the same extent as provided above
with respect to the indemnification of the Holders, if requested in connection with any Registration Statement, any Prospectus, any Free Writing Prospectus or any Issuer Information. 

(b) Each Holder agrees, severally and not jointly, to indemnify and hold harmless the Issuers, the Guarantors, the Initial Purchasers and
the other selling Holders, their respective affiliates, the directors of the Issuers, each officer of the Issuers who signed the Registration Statement and each Person, if any, who controls the Issuers, the Guarantors, the Initial Purchasers and any
other selling Holder within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act to the same extent as the indemnity set forth in paragraph (a) above, but only with respect to any losses, claims, damages
or liabilities that arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information relating to such Holder furnished to the Issuers in writing by
such Holder expressly for use in any Registration Statement and any Prospectus. 
 (c) If any suit, action, proceeding
(including any governmental or regulatory investigation), claim or demand shall be brought or asserted against any Person in respect of which indemnification may be sought pursuant to either paragraph (a) or (b) above, such Person (the
“Indemnified Person”) shall promptly notify the Person against whom such indemnification may be sought (the “Indemnifying Person”) in writing; provided that the failure to notify the Indemnifying Person shall not
relieve it from any liability that it may have under this Section 5 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 Person shall not relieve it from any liability that it may have to an Indemnified Person otherwise than under this Section 5. If any such proceeding shall be brought or asserted against an Indemnified Person and it
shall have notified the Indemnifying Person thereof, the Indemnifying Person shall retain counsel reasonably satisfactory to the Indemnified Person to represent the Indemnified Person and any others entitled to indemnification pursuant to this
Section 5 that the Indemnifying Person may designate in such proceeding and shall pay the fees and expenses of such counsel related to such proceeding, as incurred. In any such proceeding, any Indemnified Person shall have the right to retain
its own counsel, but the fees and expenses of such counsel shall be at the expense of such Indemnified Person unless (i) the Indemnifying Person and the Indemnified Person shall have mutually agreed to the contrary;

  
 15 

 
(ii) the Indemnifying Person has failed within a reasonable time to retain counsel reasonably satisfactory to the Indemnified Person; (iii) the Indemnified Person shall have reasonably
concluded that there may be legal defenses available to it that are different from or in addition to those available to the Indemnifying Person; or (iv) the named parties in any such proceeding (including any impleaded parties) include both the
Indemnifying Person and the Indemnified Person and representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests between them. It is understood and agreed that the Indemnifying Person shall
not, in connection with any proceeding or related proceeding in the same jurisdiction, be liable for the fees and expenses of more than one separate firm (in addition to any local counsel) for all Indemnified Persons, and that all such fees and
expenses shall be reimbursed as they are incurred. Any such separate firm (x) for the Initial Purchasers, their affiliates, directors and officers and any control Persons of an Initial Purchaser shall be designated in writing by the Initial
Purchasers, (y) for any Holder, its affiliates, directors and officers and any control Persons of such Holder shall be designated in writing by the Majority Holders and (z) in all other cases shall be designated in writing by the Issuers.
The Indemnifying Person shall not be liable for any settlement of any proceeding effected without its written consent, but if settled with such consent or if there be a final judgment for the plaintiff, the Indemnifying Person agrees to indemnify
each Indemnified Person from and against any loss or liability by reason of such settlement or judgment. Notwithstanding the foregoing sentence, if at any time an Indemnified Person shall have requested that an Indemnifying Person reimburse the
Indemnified Person for fees and expenses of counsel as contemplated by this paragraph, the Indemnifying Person shall be liable for any settlement of any proceeding effected without its written consent if (i) such settlement is entered into more
than 30 days after receipt by the Indemnifying Person of such request and (ii) the Indemnifying Person shall not have reimbursed the Indemnified Person in accordance with such request prior to the date of such settlement. No Indemnifying Person
shall, without the written consent of the Indemnified Person, effect any settlement of any pending or threatened proceeding in respect of which any Indemnified Person is or could have been a party and indemnification could have been sought hereunder
by such Indemnified Person, unless such settlement (A) includes an unconditional release of such Indemnified Person, in form and substance reasonably satisfactory to such Indemnified Person, from all liability on claims that are the subject
matter of such proceeding and (B) does not include any statement as to or any admission of fault, culpability or a failure to act by or on behalf of any Indemnified Person. 

(d) If the indemnification provided for in paragraphs (a) and (b) above is unavailable to an Indemnified Person or insufficient
in respect of any losses, claims, damages or liabilities referred to therein, then each Indemnifying Person under such paragraph, in lieu of indemnifying such Indemnified Person thereunder, shall contribute to the amount paid or payable by such
Indemnified Person as a result of such losses, claims, damages or liabilities (i) in such proportion as is appropriate to reflect the relative benefits received by the Issuers and the Guarantors from the offering of the Securities and the
Exchange Securities, on the one hand, and by the Holders from receiving Securities or Exchange Securities registered under the Securities Act, on the other hand, or (ii) if the allocation provided by 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) but also the relative fault of the Issuers and the Guarantors on the one hand and the Holders on the other in connection
with the statements or omissions that 

  
 16 

 
resulted in such losses, claims, damages or liabilities, as well as any other relevant equitable considerations. The relative fault of the Issuers and the Guarantors on the one hand and the
Holders on the other 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
Issuers and the Guarantors or by the Holders and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. 

(e) The Issuers, the Guarantors and the Holders agree that it would not be just and equitable if contribution pursuant to this
Section 5 were determined by pro rata allocation (even if the Holders were treated as one entity for such purpose) or by any other method of allocation that does not take account of the equitable considerations referred to in
paragraph (d) above. The amount paid or payable by an Indemnified Person as a result of the losses, claims, damages and liabilities referred to in paragraph (d) above shall be deemed to include, subject to the limitations set forth above,
any legal or other expenses incurred by such Indemnified Person in connection with any such action or claim. Notwithstanding the provisions of this Section 5, in no event shall a Holder be required to contribute any amount in excess of the
amount by which the total price at which the Securities or Exchange Securities sold by such Holder exceeds the amount of any damages that such Holder has 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. The
Holders’ obligations to contribute pursuant to this Section 5 are several and not joint. 
 (f) The remedies provided
for in this Section 5 are not exclusive and shall not limit any rights or remedies that may otherwise be available to any Indemnified Person at law or in equity. 
 (g) The indemnity and contribution provisions contained in this Section 5 shall remain operative and in full force and effect regardless of (i) any termination of this Agreement, (ii) any
investigation made by or on behalf of the Initial Purchasers or any Holder, their respective affiliates or any Person controlling any Initial Purchaser or any Holder, or by or on behalf of the Issuers, their respective affiliates or the officers or
directors of or any Person controlling the Issuers, (iii) acceptance of any of the Exchange Securities and (iv) any sale of Registrable Securities pursuant to a Shelf Registration Statement. 

6. General. 
 (a) No Inconsistent Agreements. The Issuers and the Guarantors represent, warrant and agree that (i) the rights granted to the Holders hereunder do not in any way conflict with and are not
inconsistent with the rights granted to the holders of any other outstanding securities issued or guaranteed by any Issuer or any Guarantor under any other agreement and (ii) neither any Issuer nor any Guarantor has entered into, or on or after
the date of this Agreement will enter into, any agreement that is inconsistent with the rights granted to the Holders of Registrable Securities in this Agreement or otherwise conflicts with the provisions hereof. 

  
 17 

 (b) Amendments and Waivers. The provisions of this Agreement, including the
provisions of this sentence, may not be amended, modified or supplemented, and waivers or consents to departures from the provisions hereof may not be given unless the Issuers have obtained the written consent of Holders of at least a majority in
aggregate principal amount of the outstanding Registrable Securities affected by such amendment, modification, supplement, waiver or consent; provided that no amendment, modification, supplement, waiver or consent to any departure from the
provisions of Section 5 hereof shall be effective as against any Holder of Registrable Securities unless consented to in writing by such Holder. Any amendments, modifications, supplements, waivers or consents pursuant to this Section 6(b)
shall be by a writing executed by each of the parties hereto. 
 (c) Notices. All notices and other communications
provided for or permitted hereunder shall be made in writing by hand-delivery, registered first-class mail, telex, telecopier, or any courier guaranteeing overnight delivery (i) if to a Holder, at the most current address given by such Holder
to the Issuers by means of a notice given in accordance with the provisions of this Section 6(c), which address initially is, with respect to the Initial Purchaser, the address set forth in the Purchase Agreement; (ii) if to the Issuers,
initially at the Issuers’ address set forth in the Purchase Agreement and thereafter at such other address, notice of which is given in accordance with the provisions of this Section 6(c); and (iii) to such other persons at their
respective addresses as provided in the Purchase Agreement and thereafter at such other address, notice of which is given in accordance with the provisions of this Section 6(c). All such notices and communications shall be deemed to have been
duly given at the time delivered by hand, if personally delivered; five Business Days after being deposited in the mail, postage prepaid, if mailed; when answered back, if telexed; when receipt is acknowledged, if telecopied; and on the next
Business Day if timely delivered to an air courier guaranteeing overnight delivery. Copies of all such notices, demands or other communications shall be concurrently delivered by the Person giving the same to the Trustee, at the address specified in
the Indenture. 
 (d) Successors and Assigns. This Agreement shall inure to the benefit of and be binding upon the
successors, assigns and transferees of each of the parties, including, without limitation and without the need for an express assignment, subsequent Holders; provided that nothing herein shall be deemed to permit any assignment, transfer or other
disposition of Registrable Securities in violation of the terms of the Purchase Agreement or the Indenture. If any transferee of any Holder shall acquire Registrable Securities in any manner, whether by operation of law or otherwise, such
Registrable Securities shall be held subject to all the terms of this Agreement, and by taking and holding such Registrable Securities such Person shall be conclusively deemed to have agreed to be bound by and to perform all of the terms and
provisions of this Agreement and such Person shall be entitled to receive the benefits hereof. The Initial Purchasers (in their capacity as the Initial Purchasers) shall have no liability or obligation to the Issuers or the Guarantors with respect
to any failure by a Holder to comply with, or any breach by any Holder of, any of the obligations of such Holder under this Agreement. 

  
 18 

 (e) Third Party Beneficiaries. Each Holder shall be a third party beneficiary to the
agreements made hereunder between the Issuers, on the one hand, and the Initial Purchasers, on the other hand, and shall have the right to enforce such agreements directly to the extent it deems such enforcement necessary or advisable to protect its
rights or the rights of other Holders hereunder. 
 (f) 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. 

(g) Headings. The headings in this Agreement are for convenience of reference only, are not a part of this Agreement and shall not
limit or otherwise affect the meaning hereof. 
 (h) Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of New York. 
 (i) Miscellaneous. This Agreement contains the entire agreement
between the parties relating to the subject matter hereof and supersedes all oral statements and prior writings with respect thereto. If any term, provision, covenant or restriction contained in this Agreement is held by a court of competent
jurisdiction to be invalid, void or unenforceable or against public policy, the remainder of the terms, provisions, covenants and restrictions contained herein shall remain in full force and effect and shall in no way be affected, impaired or
invalidated. The Issuers and the Initial Purchasers shall endeavor in good faith negotiations to replace the invalid, void or unenforceable provisions with valid provisions the economic effect of which comes as close as possible to that of the
invalid, void or unenforceable provisions. 

  
 19 

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

					
	Very truly yours,
	
	ATLAS PIPELINE PARTNERS, L.P.
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
		
	By:	 	 /s/ Robert W. Karlovich, III

		 	Name:	 	Robert W. Karlovich, III
		 	Title:	 	Chief Financial Officer & Chief Accounting Officer

  
 20 

 EXECUTION VERSION 

 

 
					
	ATLAS PIPELINE FINANCE CORPORATION
		
	By:	 	 /s/ Robert W. Karlovich, III

		 	Name:	 	Robert W. Karlovich, III
		 	Title:	 	Chief Financial Officer
	
	 ATLAS PIPELINE OPERATING PARTNERSHIP, L.P.

	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
	
	 ATLAS PIPELINE MID-CONTINENT HOLDINGS, LLC

	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
	
	APL LAUREL MOUNTAIN, LLC
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
		
	By:	 	 /s/ Robert W. Karlovich, III

		 	Name:	 	Robert W. Karlovich, III
		 	Title:	 	Chief Financial Officer & Chief Accounting Officer

 EXECUTION VERSION 

 

 
					
	ATLAS PIPELINE TENNESSEE, LLC
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
	
	ATLAS PIPELINE MID-CONTINENT LLC
	By:	 	Atlas Pipeline Mid-Continent Holdings, LLC, its sole member
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
	
	APL BARNETT, LLC
	By:	 	Atlas Pipeline Mid-Continent Holdings, LLC, its sole member
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
	
	SLIDER WESTOK GATHERING, LLC
	By:	 	Atlas Pipeline Mid-Continent Holdings, LLC, its sole member
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
		
	By:	 	 /s/ Robert W. Karlovich, III

		 	Name:	 	Robert W. Karlovich, III
		 	Title:	 	Chief Financial Officer & Chief Accounting Officer

 EXECUTION VERSION 

 

 
					
	ATLAS MIDKIFF, LLC
	By:	 	Atlas Pipeline Mid-Continent Holdings, LLC, its sole member
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
	
	ATLAS CHANEY DELL, LLC
	By:	 	Atlas Pipeline Mid-Continent Holdings, LLC, its sole member
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
	
	NOARK ENERGY SERVICES, L.L.C.
	By:	 	Atlas Pipeline Mid-Continent Holdings, LLC, its sole member
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
	
	ATLAS PIPELINE NGL HOLDINGS, LLC
	By:	 	Atlas Pipeline Mid-Continent Holdings, LLC, its sole member
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
		
	By:	 	 /s/ Robert W. Karlovich, III

		 	Name:	 	Robert W. Karlovich, III
		 	Title:	 	Chief Financial Officer & Chief Accounting Officer

 EXECUTION VERSION 

 

					
	ATLAS PIPELINE NGL HOLDINGS II, LLC
	By:	 	Atlas Pipeline Mid-Continent Holdings, LLC, its sole member
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
	
	 VELMA INTRASTATE GAS TRANSMISSION COMPANY, LLC

	By:	 	Atlas Pipeline Mid-Continent LLC, its sole member
	By:	 	Atlas Pipeline Mid-Continent Holdings, LLC, its sole member
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
	
	VELMA GAS PROCESSING COMPANY, LLC
	By:	 	Atlas Pipeline Mid-Continent LLC, its sole member
	By:	 	Atlas Pipeline Mid-Continent Holdings, LLC, its sole member
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
		
	By:	 	 /s/ Robert W. Karlovich, III

		 	Name:	 	Robert W. Karlovich, III
		 	Title:	 	Chief Financial Officer & Chief Accounting Officer

 EXECUTION VERSION 

 

					
	PECOS PIPELINE LLC
	By:	 	APL Barnett, LLC, its sole member
	By:	 	Atlas Pipeline Mid-Continent Holdings, LLC, its sole member
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
	
	TESUQUE PIPELINE, LLC
	By:	 	APL Barnett, LLC, its sole member
	By:	 	Atlas Pipeline Mid-Continent LLC, its sole member
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
		
	By:	 	 /s/ Robert W. Karlovich, III

		 	Name:	 	Robert W. Karlovich, III
		 	Title:	 	Chief Financial Officer & Chief Accounting Officer
	
	APL ARKOMA MIDSTREAM, LLC
	By:	 	APL Arkoma Holdings, LLC, its sole member
	By:	 	Atlas Pipeline Mid-Continent Holdings, LLC, its sole member
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
		
	By:	 	 /s/ Robert W. Karlovich, III

		 	Name:	 	Robert W. Karlovich, III
		 	Title:	 	Chief Financial Officer & Chief Accounting Officer

 EXECUTION VERSION 

 

					
	APL ARKOMA, INC.
		
	By:	 	 /s/ Robert W. Karlovich, III

		 	Name:	 	Robert W. Karlovich, III
		 	Title:	 	Chief Financial Officer
	
	APL ARKOMA HOLDINGS, LLC.
	By:	 	Atlas Pipeline Mid-Continent Holdings, LLC, its sole member
	 
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
		
	By:	 	 /s/ Robert W. Karlovich, III

		 	Name:	 	Robert W. Karlovich, III
		 	Title:	 	Chief Financial Officer
	
	APL GAS TREATING LLC
	By:	 	Atlas Pipeline Mid-Continent Holdings, LLC, its sole member
	By:	 	Atlas Pipeline Operating Partnership, L.P., its sole member
	By:	 	Atlas Pipeline Partners GP, LLC, its General Partner
		
	By:	 	 /s/ Robert W. Karlovich, III

		 	Name:	 	Robert W. Karlovich, III
		 	Title:	 	Chief Financial Officer

 Confirmed and accepted as of the date first above written: 

 

					
	 MERRILL LYNCH, PIERCE, FENNER & SMITH

		 		 	 INCORPORATED

	 on behalf of the several Initial Purchasers named on Schedule II to the Purchase
Agreement

		
	By:	 	 /s/ Jeffrey Bloomquist

		 	Name:	 	Jeffrey Bloomquist
		 	Title:	 	Managing Director

  
 27 

 Annex A 
 Counterpart to Registration Rights Agreement 
 The undersigned hereby absolutely,
unconditionally and irrevocably agrees as a Guarantor (as defined in the Registration Rights Agreement, dated as of February 11, 2013 by and among the Partnership, a Delaware limited partnership, the Finance Co, a Delaware corporation, the
guarantors party thereto and Merrill Lynch, Pierce, Fenner & Smith Incorporated, on behalf of itself and the other Initial Purchasers) to be bound by the terms and provisions of such Registration Rights Agreement. 

IN WITNESS WHEREOF, the undersigned has executed this counterpart as of
            . 
  

			
	[NAME]
		
	By:	 	  

		 	Name:
		 	Title:

  
 28 

 SCHEDULE I 
 GUARANTORS 
 Atlas Pipeline Operating Partnership, L.P. 

APL Laurel Mountain, LLC 
 Atlas Pipeline
Tennessee, LLC 
 Atlas Pipeline Mid-Continent Holdings, LLC 
 Atlas Pipeline Mid-Continent LLC 
 Velma Intrastate Gas Transmission Company, LLC 

Slider WestOK Gathering, LLC 
 Velma Gas
Processing Company, LLC 
 Atlas Pipeline NGL Holdings, LLC 
 Atlas Pipeline NGL Holdings II, LLC 
 Atlas Chaney Dell, LLC 

Atlas Midkiff, LLC 
 NOARK Energy Services,
L.L.C. 
 APL Barnett, LLC 
 Pecos
Pipeline LLC 
 Tesuque Pipeline, LLC 

APL Arkoma Holdings, LLC 
 APL Arkoma
Midstream, LLC 
 APL Arkoma, Inc. 

APL Gas Treating LLC 

 SCHEDULE II 
 INITIAL PURCHASERS 
 Merrill Lynch, Pierce, Fenner & Smith Incorporated 

Wells Fargo Securities, LLC 
 Deutsche Bank
Securities Inc. 
 Citigroup Global Markets Inc. 
 J.P. Morgan Securities LLC 
 ABN AMRO Securities (USA) LLC 

SunTrust Robinson Humphrey, Inc. 
 Capital One
Southcoast, Inc. 
 SMBC Nikko Capital Markets Limited 
 Comerica Securities, Inc 

  
 30EX-10.1

AMENDMENT NO. 2 TO MERGER AGREEMENT AND PLAN OF REORGANIZATION

This Second Amendment to Merger Agreement and Plan of Reorganization (the “Second Amendment”), is
made as of the 11th day of February, 2013 (the “Effective Date”), by and between Immune
Pharmaceuticals Ltd. (“Immune”), EpiCept Corporation and EpiCept Israel Ltd., an Israeli company
(together, “EpiCept”). Immune and Epicept shall hereinafter sometimes be referred to collectively
as the “Parties”. Capitalized terms used herein and not otherwise defined shall have the
respective definitions ascribed to them in the Merger Agreement and Plan of Reorganization dated
November 7, 2012, as amended by the Amendment to Merger Agreement and Plan of Reorganization dated
November 27, 2012 (the “First Amendment” and together, the “Merger Agreement”).

	 	 	 
	WHEREAS,
	 	The Parties have entered into the Merger Agreement; and

	WHEREAS,
	 	The Parties have entered into the First Amendment allowing Immune to

raise funds through the Private Placement; and

	WHEREAS,
	 	The Parties agree that it may be desirable, from time to time prior

to the Closing, for Immune to use a portion of any proceeds it

receives from a Private Placement to purchase from EpiCept shares of

Parent Common Stock (a “Pre-Merger Investment”); and

	WHEREAS,
	 	The Parties desire to establish the price of shares of Parent Common

Stock to be purchased by Immune from Epicept with a portion of any

proceeds it receives from a Private Placement; and

	WHEREAS,
	 	The Parties agree that the Exchange Ratio, as provided in Section

2.5(b) of the Merger Agreement and modified with the execution of

this Second Amendment, values EpiCept and Immune at approximately

$14 million and $61 million, respectively, for an assumed combined

company valuation of approximately $75 million; and

	WHEREAS,
	 	The Parties desire to provide in the Merger Agreement for an

adjustment of the Exchange Ratio to reflect any Pre-Merger

Investment; and

	WHEREAS,
	 	The Parties also desire to modify the definitions of “Parent’s

Specified Liabilities” and “Company Financial Statements”, as well

as the date that the Company Financial Statements shall be provided

to Parent and to make certain other changes to the Merger Agreement,

as further set forth herein;

NOW, THEREFORE, in consideration of the mutual promises and covenants set forth herein, the
Parties hereby agree as follows:

1. EpiCept and Immune have agreed to add a new Section 2.5(b)(A) to the Merger Agreement, providing
for the adjustment of the Exchange Ratio in the event of future Pre-Merger Investments, as follows:

“(A) Notwithstanding the provisions of Section 2.5(b) above, in addition to
the Adjustment referred to therein, the number of Merger Shares will be
further increased as set forth below in this Section 2.5(b)(A) if, at any time
and from time to time prior to the Merger Effective Time, Company shall use
any proceeds it receives from a Private Placement to purchase from Parent
            shares of Parent Common Stock, which Parent agrees it is willing to sell to
the Company at a purchase price of $0.13 per share (a “Pre-Merger
Investment”). Any shares of Parent Company Stock issued to Immune in
consideration for the Pre-Merger Investment will be cancelled at the Merger
Effective Time, but the number of Merger Shares shall be adjusted upon Closing
such that, for each $100,000 invested by Company in Parent pursuant to a
Pre-Merger Investment (up to an aggregate of $500,000), the percentage of the
Adjusted Fully Diluted Parent Capitalization that the Merger Shares shall
constitute will be increased by an additional 0.7%. The adjustments referred
to in this Section 2.5(b)(A) shall be referred to as the “Additional
Adjustment”. Any references in this Agreement (other than in Section 2.5(b))
to the Adjustment shall be deemed to include the Additional Adjustment.”

2. The parties will negotiate any further adjustments to the Additional Adjustment that will apply
to amounts in excess of $500,000 that the Company invests in Parent. The parties confirm that any
amounts loaned to Parent by the Company shall be governed by the provisions of Section 5.22 of the
Merger Agreement.

3. The proceeds of a Pre-Merger Investment shall be used to primarily to reduce Parent’s
outstanding payables, liabilities, commitments and contingent liabilities and also to cover
operating expenses. In the event of a Pre-Merger Investment, the Company shall have the right to
closely review and approve Parent’s monthly budget.

4. Notwithstanding Section 3.4 to the Merger Agreement, the period prescribed for the Company to
obtain, and provide Parent with copies of, the Additional Consents is extended to March 31, 2013.

5. The term “Parent’s Specified Liabilities” as defined in the Merger Agreement shall be amended by
adding the following sentence:

“Notwithstanding the foregoing, Parent’s Specified Liabilities will not include
any of Parent’s obligations identified in clauses (i) through (iv) above for
which, at the Merger Effective Time, there exist binding agreements between Parent
and third parties providing for the agreement of such third parties to accept
            shares of Parent Common Stock following the Merger Effective Time in lieu of
payment by Parent of such obligations.”

6. Section 3.25(a) of the Merger Agreement is deleted and the following is substituted in lieu
thereof:

	 	 	 	“(a) The Company has agreed to use its best efforts to deliver
to Parent on or before February 28, 2013, copies of the audited balance
sheets of the Company and the audited statements of operations, and audited
changes in shareholders’ equity and cash flows, through December 31, 2012,
required for the proxy statement or Registration Statement on Form S-4
(collectively, the “Company Financial Statements”). The Company Financial
Statements (including the related notes) will be prepared in accordance with
GAAP during the periods involved, and will present fairly the consolidated
financial position of the Company as of the respective dates set forth
therein, and the consolidated results of the Company’s operations and its
cash flows for the respective periods set forth therein in accordance with
GAAP.”

7. The first sentence of Section 5.18(b) of the Merger Agreement shall be amended by replacing the
words “January 31, 2013” with the words “February 28, 2013”.

8. Section 10.1(c)(iii) of the Merger Agreement is deleted and replaced with the following:

“If the Company does not deliver to Parent the Company Financial Statements on or
before February 28, 2013.”

9. The term “Charter Amendments” as defined in the Merger Agreement shall be changed to “Charter
Amendment” and amended by deleting clause (ii) thereof, and all references in the Merger Agreement
thereto shall likewise be amended to refer to the “Charter Amendment”.

10. Unless amended hereby, all provisions of the Merger Agreement shall remain in full force and
effect.

[The remainder of this page was intentionally left blank]

1

IN WITNESS WHEREOF, the Parties hereto have executed this Second Amendment as of the Effective
Date.

EPICEPT CORPORATION

By:      

Name: Robert W. Cook

Title: President

EPICEPT ISRAEL LTD.

BY: EPICEPT CORPORATION

By:      

Name: Robert W. Cook

Title: President

IMMUNE PHARMACEUTICALS LTD.

By:      

Name: Dr. Daniel Gedeon Teper

Title: Chief Executive Officer

2

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