**Exhibit 31.1****CERTIFICATION**I, Stephen A. Snider, certify that:      1. I have reviewed this quarterly report* on Form 10-Q of Exterran Partners, L.P.(the “registrant”);      2. Based on my knowledge, this report does not contain any untrue statement of a material factor omit to state a material fact necessary to make the statements made, in light of thecircumstances under which such statements were made, not misleading with respect to the periodcovered by this report;      3. Based on my knowledge, the financial statements, and other financial information includedin this report, fairly present in all material respects the financial condition, results ofoperations and cash flows of the registrant as of, and for, the periods presented in this report;      4. The registrant’s other certifying officer and I are responsible for establishing andmaintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and15d-15(e)) for the registrant and have: a) designed such disclosure controls and procedures, or causedsuch disclosure controls and procedures to be designed under our supervision,to ensure that material information relating to the registrant, including itsconsolidated subsidiaries, is made known to us by others within thoseentities, particularly during the period in which this report is beingprepared;  b) [RESERVED]  c) evaluated the effectiveness of the registrant’s disclosurecontrols and procedures and presented in this report our conclusions about theeffectiveness of the disclosure controls and procedures as of the end of theperiod covered by this report based on such evaluation; and  d) disclosed in this report any change in the registrant’sinternal control over financial reporting that occurred during theregistrant’s most recent fiscal quarter that has materially affected, or isreasonably likely to materially affect, the registrant’s internal control overfinancial reporting; and      5. The registrant’s other certifying officer and I have disclosed, based on our most recentevaluation of internal control over financial reporting, to the registrant’s auditors and the auditcommittee of registrant’s board of directors (or persons performing the equivalent functions): a) all significant deficiencies and material weaknesses in thedesign or operation of internal control over financial reporting which arereasonably likely to adversely affect the registrant’s ability to record,process, summarize and report financial information; and  b) any fraud, whether or not material, that involves managementor other employees who have a significant role in the registrant’s internalcontrol over financial reporting.        Date:      November 5, 2007 /s/ STEPHEN A. SNIDER   Name:  Stephen A. Snider   Title:  Chief Executive Officer, UCO GP, LLC  As General Partner of UCO General Partner, LP      As General Partner of Exterran Partners, L.P.    * This report presents the financial condition, results of operations and cash flows ofthe registrant and the results of operations and cash flow of the registrant’s predecessor,the natural gas contract operations business that was provided in the United States of Americaby Universal Compression Holdings and its subsidiaries.