UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM SD

Specialized Disclosure Report

SUPERIOR ENERGY SERVICES, INC.

(Exact name of registrant as specified in its charter)

William B. Masters

(713) 654-2200

(Name and telephone number, including area code, of the person to contact in connection with this report.)

Check the appropriate box to indicate the rule pursuant to which this form is being filed, and provide the period to which the information in this form applies:

Section 1 – Conflict Minerals Disclosure

Item 1.01 Conflict Minerals Disclosure and Report

Conflict Minerals Disclosure

This is the Conflict Minerals Report of Superior Energy Services, Inc. (including its subsidiaries, the “Company”) for calendar year 2018 in accordance with Rule 13p-1 under the Securities Exchange Act of 1934. Please refer to Rule 13p-1, Form SD and SEC Release No. 34-67716 for definitions to the terms used in this Report, unless otherwise defined herein.

The Company provides a wide variety of services and products to the energy industry related to the exploration, development and production of oil and natural gas. Accordingly, the Company undertook due diligence on the source and chain of custody of conflict minerals used in manufacturing its products in 2018. For those two products which were identified through its due diligence as containing conflict minerals, the Company then performed a Reasonable Country of Origin Inquiry (“RCOI”) reasonably designed to determine whether such conflict minerals originated in the Democratic Republic of the Congo or an adjoining country.

In conducting its RCOI, the Company contacted those 93 suppliers who were identified in its initial supply chain risk assessment to establish the origin of the conflict minerals supplied to the Company. The Company was able to gather and review responses from 85 of its suppliers.

The Company conducted due diligence on the source and chain of custody of such conflict minerals, and has prepared the Conflict Minerals Report filed as Exhibit 1.01 to this Form SD. Based on the Company’s due diligence to date, the Company has not received sufficient information from its suppliers to determine the country of origin for the conflict minerals contained in two of its products, or to confirm whether such conflict minerals were from recycled or scrap sources.

Item 1.02 Exhibit

The Company’s Conflict Minerals Report for the calendar year ended December 31, 2018, is filed as Exhibit 1.01 hereto and is publicly available on the Company’s website, “www.superiorenergy.com.”

Section 2 – Exhibits

Item 2.01 Exhibits

Exhibit 1.01 – Conflict Minerals Report.

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SIGNATURES

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

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Exhibit 1.01

Superior Energy Services, Inc.

Conflict Minerals Report

For the Year Ended December 31, 2018

This is the Conflict Minerals Report of Superior Energy Services, Inc. (including its subsidiaries, the “Company”) for calendar year 2018 in accordance with Rule 13p-1 under the Securities Exchange Act of 1934 (as amended, the “1934 Act”). Please refer to Rule 13p-1, Form SD and SEC Release No. 34-67716 for definitions to the terms used in this Report, unless otherwise defined herein.

In accordance with Rule 13p-1, the Company performed due diligence on the source and chain of custody of conflict minerals used in manufacturing its products in 2018. The specified minerals are gold, columbite-tantalite (coltan), cassiterite and wolframite, including their derivatives, which are limited to tantalum, tin and tungsten (collectively, the “conflict minerals”). For the two products identified through the Company’s due diligence as containing conflict minerals, the Company then performed a Reasonable Country of Origin Inquiry (“RCOI”) designed to determine whether such conflict minerals originated in the Democratic Republic of the Congo or an adjoining country (collectively, the “Covered Countries”).

Due Diligence Measures

As a provider of a wide variety of services and products to the energy industry relating to the exploration, development and production of oil and natural gas, the Company is several levels removed from the actual mining, smelting and refining of conflict minerals. Furthermore, the Company does not buy raw ore or unrefined conflict minerals, or make purchases from the Covered Countries. The Company must therefore rely on its suppliers to provide information regarding the origin of any conflict minerals they supply.

In conducting its due diligence, the Company applied guidance from the “OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas: Third Edition” (OECD 2016) and the related supplements on tin, tantalum, tungsten and gold (collectively, the “OECD Framework”), an internationally recognized due diligence framework. The Company’s due diligence measures were designed to identify products which may contain conflict minerals, and to then engage its suppliers to determine the source of these conflict minerals. The Company has taken the following steps to achieve these objectives:

Results of Due Diligence Measures

Based on the Company’s due diligence, there were two products contracted to be manufactured by the Company in 2018 which were identified as containing conflict minerals: (1) tungsten balls, which are used in its plunger lift equipment; and (2) carbide packers, slips and seats, which are used in some of its well completion tools.

A total of 93 active suppliers were contacted as part of the RCOI process relating to the two products identified above. The response rate among these active suppliers was 91% (85 of 93 suppliers).

Of the suppliers that responded, 78% (66 suppliers) confirmed that the supplier either did not manufacture any products or did not use any conflict minerals in the manufacture of their products. The remaining 22% (19 suppliers) of suppliers that responded indicated that their products and/or materials used in the manufacture of their products contained conflict minerals.

Of the 19 suppliers who indicated that their products and/or materials used in the manufacture of their products contained conflict minerals, five suppliers indicated that the conflict minerals contained in their products were sourced from one of the Covered Countries. Of these five suppliers, only one supplier was unable to gather sufficient information from its smelters to determine where its conflict minerals were sourced from as of the time of its response. All of the other suppliers were able to confirm that the conflict minerals contained in their products were sourced from smelters which are on the RMAP Conformant Smelters & Refiners list managed by RMI.

Despite having conducted a good faith RCOI and gathered a substantial amount of information from the responsive suppliers, the Company has been unable to conclusively determine the origin of the conflict minerals contained in the two products identified through its due diligence. The Company makes this determination due to a lack of information provided by one of its suppliers regarding where its conflict minerals were sourced from, as well as eight suppliers who failed to provide responses to the RCOI despite multiple requests for information.

The Company previously adopted its own conflict minerals policy (“Policy”) to support the ethical sourcing of all materials used in its supply chain. The Policy is publicly available online at https://superiorenergy.com/about/corporate-governance/conflict-minerals/. The Policy reflects the Company’s expectation that its suppliers perform their own due diligence and provide an appropriate level of information regarding where its materials originate from. The Company continued to promote the Policy to its suppliers in 2018.

The activities described above mitigated the risk that the Company’s conflict minerals benefited armed groups that are perpetrators of human rights abuses in the Covered Countries. In the next compliance period, the Company intends to (1) develop corrective action plans for non-respondent suppliers to help ensure that they are in compliance with the Company’s Policy, and (2) further develop the Company’s conflict minerals program and build transparency over its supply chain through continued efforts to communicate the Company’s expectations to its suppliers.

By continuing to implement the Company’s internal supply chain due diligence processes and driving accountability within the supply chain, the Company hopes to further promote the ethical sourcing of all materials used in its supply chain.