Related Party Transactions	12 Months Ended
Dec. 31, 2017
Related Party Transactions [Abstract]
Related Party Transactions	RELATED PARTY TRANSACTIONS Omnibus Agreement On June 20, 2014, the Partnership, CSI Compressco GP Inc. (the "General Partner"), and TETRA Technologies, Inc. ("TETRA") entered into a First Amendment to Omnibus Agreement (the "First Amendment"). The First Amendment amended the Omnibus Agreement previously entered into on June 20, 2011 (as amended, the "Omnibus Agreement") to extend the term thereof. The Omnibus Agreement will terminate on the earlier of (i) a change of control of the General Partner or TETRA, or (ii) upon any party providing at least 180 days' prior written notice of termination. Under the terms of the Omnibus Agreement, our General Partner provides all personnel and services reasonably necessary to manage our operations and conduct our business (other than in Mexico, Canada, and Argentina), and certain of TETRA’s Latin American-based subsidiaries provide personnel and services necessary for the conduct of certain of our Latin American-based businesses. In addition, under the Omnibus Agreement, TETRA provides certain corporate and general and administrative services as requested by our General Partner, including, without limitation, legal, accounting and financial reporting, treasury, insurance administration, claims processing and risk management, health, safety and environmental, information technology, human resources, credit, payroll, internal audit, and tax services. Pursuant to the Omnibus Agreement, we reimburse our General Partner and TETRA for services they provide to us. For the years ended December 31, 2017, 2016, and 2015, we were charged by TETRA $37.2 million, $41.5 million, and $113.9 million, respectively, for expenses incurred on our behalf as described below. Amounts charged under the Omnibus Agreement and outstanding as of December 31, 2017 and 2016 are included in Amounts Payable to Affiliates in the accompanying consolidated balance sheets. In January 2017, our General Partner and TETRA agreed that $1.6 million of Amounts Payable to Affiliates as of December 31, 2016 that were charged to us by TETRA under the Omnibus Agreement would be paid with common units in lieu of cash, with the number of common units calculated based on the average trading price of our common units over a defined period. This amount represents certain corporate and general and administrative services for the fourth quarter of 2016. Pursuant to this agreement, 159,192 units were issued to TETRA in January 2017. In May 2017, our General Partner and TETRA entered into an agreement (the "First Quarter 2017 Omnibus Reimbursement Agreement") pursuant to which $1.7 million of Amounts Payable to Affiliates as of March 31, 2017 that were owed by us to TETRA under the Omnibus Agreement would be satisfied by newly issued common units instead of cash, with the number of common units calculated based on the average trading price of our common units, subject to limitations, over a defined period that began on May 12, 2017. This amount owed by us represented certain corporate and general and administrative services provided in the first quarter of 2017. Pursuant to the First Quarter 2017 Omnibus Reimbursement Agreement, 280,257 common units were issued to TETRA in June 2017. Under the terms of the Omnibus Agreement, we or TETRA may, but neither are under any obligation to, perform for the other such production enhancement or other oilfield services on a subcontract basis as are needed or desired by the other, for such periods of time and in such amounts as may be mutually agreed upon by TETRA and our General Partner. Any such services are required to be performed on terms that are (i) approved by the conflicts committee of our General Partner’s board of directors, (ii) no less favorable to us than those generally being provided to or available from non-affiliated third parties, as determined by our General Partner, or (iii) fair and reasonable to us, taking into account the totality of the relationships between TETRA and us (including other transactions that may be particularly favorable or advantageous to us), as determined by our General Partner. Under the terms of the Omnibus Agreement, we or TETRA may, but are under no obligation to, sell, lease or exchange on a like-kind basis to the other such production enhancement or other oilfield services equipment as is needed or desired to meet either of our production enhancement or other oilfield services obligations, in such amounts, upon such conditions and for such periods of time, if applicable, as may be mutually agreed upon by TETRA and our General Partner. Any such sales, leases, or like-kind exchanges are required to be on terms that are (i) approved by the conflicts committee of our General Partner’s board of directors, (ii) no less favorable to us than those generally being provided to or available from non-affiliated third parties, as determined by our General Partner, or (iii) fair and reasonable to us, taking into account the totality of the relationships between TETRA and us (including other transactions that may be particularly favorable or advantageous to us), as determined by our General Partner. In addition, unless otherwise approved by the conflicts committee of our General Partner’s board of directors, TETRA may purchase newly fabricated equipment from us at a negotiated price, provided that such price may not be less than the sum of the total costs (other than any allocations of general and administrative expenses) incurred by us in fabricating such equipment plus a fixed margin percentage thereof, and TETRA may purchase from us previously fabricated equipment for a price that is not less than the sum of the net book value of such equipment plus a fixed margin percentage thereof. This description is not a complete discussion of this agreement and is qualified in its entirety by reference to the full text of the complete agreement, which is filed, along with other agreements, as exhibits to our filings with the SEC. In addition to the Omnibus Agreement, we have entered into other agreements with TETRA in the course of our operations. TETRA and General Partner Ownership TETRA's ownership interest in us as of December 31, 2017 and 2016 is approximately 41% and 44%, respectively, with the common units held by the public representing an approximate 59% and 56% interest in us, respectively. As of December 31, 2017, TETRA's ownership is through various wholly owned subsidiaries and consists of approximately 39% of the limited partner interests plus the approximately 2% general partner interest, through which it holds incentive distribution rights. As a result of its ownership of common units and its general partner interest in us, TETRA received distributions of $14.2 million, $22.3 million, and $30.5 million during the years ended December 31, 2017, 2016, and 2015, respectively. In August 2016 and September 2016, we issued and sold 6,999,126 of the Preferred Units in a private placement. One of the purchasers in the Initial Private Placement was TETRA, which purchased 874,891 of the Preferred Units at the aggregate Issue Price of $10.0 million and representing 12.5% ownership of the Preferred Units. For further discussion, see Note E - Series A Convertible Preferred Units. Indemnification Agreement Each of our directors and officers entered into an indemnification agreement with regard to their services as a director or officer, in order to enhance the indemnification rights provided under Delaware law and our Partnership Agreement. The individual indemnification agreements provide each such director or officer with the right to receive his or her costs of defense if he or she is made a party or witness to any proceeding other than a proceeding brought by or in the right of us, provided that such director or officer has not acted in bad faith or engaged in fraud with respect to the action that gave rise to his or her participation in the proceeding.

RELATED PARTY TRANSACTIONS

Omnibus Agreement

On June 20, 2014, the Partnership, CSI Compressco GP Inc. (the "General Partner"), and TETRA Technologies, Inc. ("TETRA") entered into a First Amendment to Omnibus Agreement (the "First Amendment"). The First Amendment amended the Omnibus Agreement previously entered into on June 20, 2011 (as amended, the "Omnibus Agreement") to extend the term thereof. The Omnibus Agreement will terminate on the earlier of (i) a change of control of the General Partner or TETRA, or (ii) upon any party providing at least 180 days' prior written notice of termination.

Under the terms of the Omnibus Agreement, our General Partner provides all personnel and services reasonably necessary to manage our operations and conduct our business (other than in Mexico, Canada, and Argentina), and certain of TETRA’s Latin American-based subsidiaries provide personnel and services necessary for the conduct of certain of our Latin American-based businesses. In addition, under the Omnibus Agreement, TETRA provides certain corporate and general and administrative services as requested by our General Partner, including, without limitation, legal, accounting and financial reporting, treasury, insurance administration, claims processing and risk management, health, safety and environmental, information technology, human resources, credit, payroll, internal audit, and tax services. Pursuant to the Omnibus Agreement, we reimburse our General Partner and TETRA for services they provide to us. For the years ended December 31, 2017, 2016, and 2015, we were charged by TETRA $37.2 million, $41.5 million, and $113.9 million, respectively, for expenses incurred on our behalf as described below. Amounts charged under the Omnibus Agreement and outstanding as of December 31, 2017 and 2016 are included in Amounts Payable to Affiliates in the accompanying consolidated balance sheets.

In January 2017, our General Partner and TETRA agreed that $1.6 million of Amounts Payable to Affiliates as of December 31, 2016 that were charged to us by TETRA under the Omnibus Agreement would be paid with common units in lieu of cash, with the number of common units calculated based on the average trading price of our common units over a defined period. This amount represents certain corporate and general and administrative services for the fourth quarter of 2016. Pursuant to this agreement, 159,192 units were issued to TETRA in January 2017.

In May 2017, our General Partner and TETRA entered into an agreement (the "First Quarter 2017 Omnibus

Reimbursement Agreement") pursuant to which $1.7 million of Amounts Payable to Affiliates as of March 31, 2017

that were owed by us to TETRA under the Omnibus Agreement would be satisfied by newly issued common units

instead of cash, with the number of common units calculated based on the average trading price of our common

units, subject to limitations, over a defined period that began on May 12, 2017. This amount owed by us

represented certain corporate and general and administrative services provided in the first quarter of 2017.

Pursuant to the First Quarter 2017 Omnibus Reimbursement Agreement, 280,257 common units were issued to

TETRA in June 2017.

Under the terms of the Omnibus Agreement, we or TETRA may, but neither are under any obligation to, perform for the other such production enhancement or other oilfield services on a subcontract basis as are needed or desired by the other, for such periods of time and in such amounts as may be mutually agreed upon by TETRA and our General Partner. Any such services are required to be performed on terms that are (i) approved by the conflicts committee of our General Partner’s board of directors, (ii) no less favorable to us than those generally being provided to or available from non-affiliated third parties, as determined by our General Partner, or (iii) fair and reasonable to us, taking into account the totality of the relationships between TETRA and us (including other transactions that may be particularly favorable or advantageous to us), as determined by our General Partner.

Under the terms of the Omnibus Agreement, we or TETRA may, but are under no obligation to, sell, lease or exchange on a like-kind basis to the other such production enhancement or other oilfield services equipment as is needed or desired to meet either of our production enhancement or other oilfield services obligations, in such amounts, upon such conditions and for such periods of time, if applicable, as may be mutually agreed upon by TETRA and our General Partner. Any such sales, leases, or like-kind exchanges are required to be on terms that are (i) approved by the conflicts committee of our General Partner’s board of directors, (ii) no less favorable to us than those generally being provided to or available from non-affiliated third parties, as determined by our General Partner, or (iii) fair and reasonable to us, taking into account the totality of the relationships between TETRA and us (including other transactions that may be particularly favorable or advantageous to us), as determined by our General Partner. In addition, unless otherwise approved by the conflicts committee of our General Partner’s board of directors, TETRA may purchase newly fabricated equipment from us at a negotiated price, provided that such price may not be less than the sum of the total costs (other than any allocations of general and administrative expenses) incurred by us in fabricating such equipment plus a fixed margin percentage thereof, and TETRA may purchase from us previously fabricated equipment for a price that is not less than the sum of the net book value of such equipment plus a fixed margin percentage thereof.

This description is not a complete discussion of this agreement and is qualified in its entirety by reference to the full text of the complete agreement, which is filed, along with other agreements, as exhibits to our filings with the SEC.

In addition to the Omnibus Agreement, we have entered into other agreements with TETRA in the course of our operations.

TETRA and General Partner Ownership

TETRA's ownership interest in us as of December 31, 2017 and 2016 is approximately 41% and 44%, respectively, with the common units held by the public representing an approximate 59% and 56% interest in us, respectively. As of December 31, 2017, TETRA's ownership is through various wholly owned subsidiaries and consists of approximately 39% of the limited partner interests plus the approximately 2% general partner interest, through which it holds incentive distribution rights. As a result of its ownership of common units and its general partner interest in us, TETRA received distributions of $14.2 million, $22.3 million, and $30.5 million during the years ended December 31, 2017, 2016, and 2015, respectively.

In August 2016 and September 2016, we issued and sold 6,999,126 of the Preferred Units in a private placement. One of the purchasers in the Initial Private Placement was TETRA, which purchased 874,891 of the Preferred Units at the aggregate Issue Price of $10.0 million and representing 12.5% ownership of the Preferred Units. For further discussion, see Note E - Series A Convertible Preferred Units.

Indemnification Agreement

Each of our directors and officers entered into an indemnification agreement with regard to their services as a director or officer, in order to enhance the indemnification rights provided under Delaware law and our Partnership Agreement. The individual indemnification agreements provide each such director or officer with the right to receive his or her costs of defense if he or she is made a party or witness to any proceeding other than a proceeding brought by or in the right of us, provided that such director or officer has not acted in bad faith or engaged in fraud with respect to the action that gave rise to his or her participation in the proceeding.