# EDGAR Filing Document

**Accession Number:** 0001549922
**File Stem:** 0001549922-23-000004
**Filing Date:** 2023-2
**Character Count:** 178910
**Document Hash:** cea648bd444425f9715b2988b22c23ac
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001549922-23-000004.hdr.sgml**: 20230216

**ACCESSION NUMBER**: 0001549922-23-000004

**CONFORMED SUBMISSION TYPE**: 8-K/A

**PUBLIC DOCUMENT COUNT**: 82

**CONFORMED PERIOD OF REPORT**: 20221201

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20230216

**DATE AS OF CHANGE**: 20230215

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Summit Midstream Partners, LP
- **CENTRAL INDEX KEY:** 0001549922
- **STANDARD INDUSTRIAL CLASSIFICATION:** NATURAL GAS TRANSMISSION [4922]
- **IRS NUMBER:** 455200503
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-35666
- **FILM NUMBER:** 23636953

**BUSINESS ADDRESS:**
- **STREET 1:** 910 LOUISIANA STREET
- **STREET 2:** SUITE 4200
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77002
- **BUSINESS PHONE:** 832-413-4770

**MAIL ADDRESS:**
- **STREET 1:** 910 LOUISIANA STREET
- **STREET 2:** SUITE 4200
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77002

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Summit Midstream Partners LP
- **DATE OF NAME CHANGE:** 20120514

?xml version="1.0" ? smlp-20221201

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 8-K/A**

**(Amendment No. 1)**

**CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d)**

**OF THE SECURITIES EXCHANGE ACT OF 1934**

Date of Report (Date of earliest event reported): **December 1, 2022**

**Summit Midstream Partners, LP**

(Exact name of registrant as specified in its charter)

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| | | |
|:---|:---|:---|
| **Delaware** | **001-35666** | **45-5200503** |
| (State or other jurisdiction | (Commission | (IRS Employer |
| of incorporation) | File Number) | Identification No.) |

---

**910 Louisiana Street, Suite 4200**

**Houston, TX 77002**

(Address of principal executive office) (Zip Code)

(Registrant's telephone number, including area code): **(832) 413-4770**

**Not applicable**

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

□ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

□ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

□ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

□ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Securities Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered <br> <u>Common Units</u> <u>SMLP</u> <u>New York Stock Exchange</u>

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

 Emerging growth company □

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. □

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**Item 9.01 Financial Statements and Exhibits.**

This Amendment No. 1 on Form 8-K/A is being filed by Summit Midstream Partners, LP (including its subsidiaries, collectively "SMLP" or the "Partnership") to amend its current report on Form 8-K filed with the Securities and Exchange Commission on December 1, 2022 (the "Original Report"), solely to provide the financial statements of businesses acquired and the related pro forma financial information required by Item 9.01 of Form 8-K. Except as otherwise provided herein, the disclosure made in the Original Report remains unchanged.

As previously disclosed, on December 1, 2022, Summit Midstream Holdings, LLC ("SMP Holdings"), a wholly owned subsidiary of the Partnership, completed the acquisition of Outrigger DJ Midstream LLC ("Outrigger DJ") from Outrigger Energy II LLC, and each of Sterling Energy Investments LLC, Grasslands Energy Marketing LLC and Centennial Water Pipelines LLC (collectively, "Sterling DJ" or "Sterling Conveyed Entities") from Sterling Investment Holdings LLC, respectively, pursuant to definitive agreements, each dated October 14, 2022 (collectively, the "Transactions").

As a result of the Transactions, SMLP acquired natural gas gathering and processing systems, a crude oil gathering system, freshwater rights, and a subsurface freshwater delivery system in the DJ Basin for aggregate cash consideration of $305.0 million, subject to customary post-closing adjustments. The Outrigger DJ and Sterling DJ consolidated asset portfolio is located in Weld, Morgan, and Logan Counties, Colorado and Cheyenne County, Nebraska.

(a) Financial statements of businesses acquired.

The audited consolidated financial statements of Outrigger DJ Midstream LLC and Subsidiary as of and for the years ended December 31, 2021 and 2020 are filed as Exhibit 99.3 and incorporated herein by reference.

The unaudited consolidated financial statements of Outrigger DJ Midstream LLC and Subsidiary as of September 30, 2022 and December 31, 2021 and for the nine month periods ended September 30, 2022 and September 30, 2021 are filed as Exhibit 99.4 and incorporated herein by reference.

The audited combined financial statements of the Sterling Conveyed Entities as of December 31, 2021 and 2020, and for the years ended December 31, 2021 and 2020 are filed as Exhibit 99.5 and incorporated herein by reference.

The unaudited condensed combined financial statements of the Sterling Conveyed Entities as of September 30, 2022 and December 31, 2021, and for the nine months ended September 30, 2022 and 2021 are filed as Exhibit 99.6 and incorporated herein by reference.

(b) Pro Forma Financial Information.

The following unaudited pro forma financial information of the Partnership is filed as Exhibit 99.7 to this Current Report on Form 8-K/A and is incorporated herein by reference:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Unaudited Pro Forma Condensed Combined Balance Sheet as of September 30, 2022.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Unaudited Pro Forma Condensed Combined Statement of Operations for the nine months ended September 30, 2022.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Unaudited Pro Forma Condensed Combined Statement of Operations for the year ended December 31, 2021.

(d) Exhibits.

---

| | |
|:---|:---|
| **Exhibit Number** | **Description** |
| 99.1 | <u>[Consent of Ernst & Young, LLP.](eyconsent-odjm991.htm)</u> |
| 99.2 | <u>[Consent of Grant Thornton LLP.](grantthorntonconsent.htm)</u> |
| 99.3 | <u>[Audited Consolidated](outriggerdjmidstreamllc-.htm)[f](outriggerdjmidstreamllc-.htm)[inancial](outriggerdjmidstreamllc-.htm)[s](outriggerdjmidstreamllc-.htm)[tatements of Outrigger DJ Midstream, LLC](outriggerdjmidstreamllc-.htm)[and](outriggerdjmidstreamllc-.htm)[Subsidiary](outriggerdjmidstreamllc-.htm)[as of and for the years ended December 31, 2021 and 2020](outriggerdjmidstreamllc-.htm)</u> |
| 99.4 | <u>[Unaudited](outriggerdjmidstreamllci.htm)[Consolidated](outriggerdjmidstreamllci.htm)[financial statements of Outrigger DJ Midstream LLC and Subsidiary as of September 30, 2022](outriggerdjmidstreamllci.htm)[and December 31, 2021](outriggerdjmidstreamllci.htm)[and for the nine month periods ended September 30, 2022 and September 30, 2021](outriggerdjmidstreamllci.htm)</u> |
| 99.5 | <u>[Audited](a2021sterlingconveyedent.htm)[Combined](a2021sterlingconveyedent.htm)[financial statements of the Sterling Conveyed Entities as of December 31, 2021 and 2020, and for the years ended December 31, 2021 and 2020](a2021sterlingconveyedent.htm)</u> |
| 99.6 | <u>[U](a2022sterlingconveyedent.htm)[naudited](a2022sterlingconveyedent.htm)[Condensed](a2022sterlingconveyedent.htm)[Combined](a2022sterlingconveyedent.htm)[f](a2022sterlingconveyedent.htm)[inancial](a2022sterlingconveyedent.htm)[s](a2022sterlingconveyedent.htm)[tatements of the Sterling Conveyed Entities as of September 30, 2022 and December 31, 2021, and for the nine months ended September 30, 2022 and 2021](a2022sterlingconveyedent.htm)</u> |
| 99.7 | <u>[Unaudited pro forma condensed](smlp-20230214xexx997.htm)[combined](smlp-20230214xexx997.htm)[financial information](smlp-20230214xexx997.htm)</u> |
| 104 | Cover Page Interactive Data File – the cover page XBRL tags are embedded within the Inline XBRL document |

---

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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 hereunto duly authorized.

---

| | | | |
|:---|:---|:---|:---|
| | | Summit Midstream Partners, LP | Summit Midstream Partners, LP |
| | | (Registrant) | (Registrant) |
| | | By: | Summit Midstream GP, LLC (its general partner) |
| Dated: | February 15, 2023 | */s/ William J. Mault* | */s/ William J. Mault* |
|  |  | William J. Mault, Executive Vice President and Chief Financial Officer | William J. Mault, Executive Vice President and Chief Financial Officer |

---

## Exhibit 99.1

**Exhibit 99.1**

**Consent of Independent Auditors**

We consent to the incorporation by reference in the Registration Statements (Form S-1 No. 333-249831, Form S-3 No. 333-234781 and Form S-8 Nos. 333-184214, 333-189684, 333-237323 and 333-265857) of Summit Midstream Partners, LP and in the related Prospectus of our report dated April 28, 2022, with respect to the consolidated financial statements of Outrigger DJ Midstream LLC and Subsidiary, included in this Current Report on Form 8-K.

/s/ Ernst & Young

Denver, Colorado

February 15, 2023

## Exhibit 99.2

**Exhibit 99.2**

CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS

We have issued our report dated February 14, 2023, with respect to the combined financial statements of Sterling Conveyed Entities included in this Current Report of Summit Midstream Energy, LP on Form 8-K. We consent to the incorporation by reference of said report in the Registration Statements of Summit Midstream Energy, LP on Form S-1 (File No. 333-249831), Form S-3 (File No. 333-234781) and Forms S-8 (File No. 333-184214, File No. 333-189684, File No. 333-237323 and File No. 333-265857).

/s/ GRANT THORNTON LLP

Oklahoma City, Oklahoma

February 15, 2023

## Exhibit 99.3

![](outriggerdjmidstreamllc-001.jpg)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1 Outrigger DJ Midstream LLC and Subsidiary Consolidated Financial Statements as of and for the Years Ended December 31, 2021, and 2020

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![](outriggerdjmidstreamllc-002.jpg)

Outrigger DJ Midstream LLC and Subsidiary Contents 2 Report of Independent Auditors 3 Consolidated Balance Sheets as of December 31, 2021 and 2020 5 Consolidated Statements of Operations for the years ended December 31, 2021 and 2020 6 Consolidated Statements of Members' Equity for the years ended December 31, 2021 and 2020 7 Consolidated Statements of Cash Flows for the years ended December 31, 2021 and 2020 8 Notes to Consolidated Financial Statements 9

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![](outriggerdjmidstreamllc-003.jpg)

A member firm of Ernst & Young Global Limited Ernst & Young Suite 4800 370 17th Street Denver, CO 80202 Tel: +1 720 931 4000 Fax: +1 720 931 4444 ey.com Report of Independent Auditors Board of Managers Outrigger DJ Midstream LLC and Subsidiary Opinion We have audited the consolidated financial statements of Outrigger DJ Midstream LLC and Subsidiary (the Company), which comprise the consolidated balance sheets as of December 31, 2021 and 2020, and the related consolidated statements of operations, changes in members' equity and cash flows for the years then ended, and the related notes (collectively referred to as the "financial statements"). In our opinion, the accompanying financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2021 and 2020, and the results of its operations and its cash flows for the years then ended in accordance with accounting principles generally accepted in the United States of America. Basis for Opinion We conducted our audits in accordance with auditing standards generally accepted in the United States of America (GAAS). Our responsibilities under those standards are further described in the Auditor's Responsibilities for the Audit of the Financial Statements section of our report. We are required to be independent of the Company and to meet our other ethical responsibilities in accordance with the relevant ethical requirements relating to our audits. We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our audit opinion. Responsibilities of Management for the Financial Statements Management is responsible for the preparation and fair presentation of the financial statements in accordance with accounting principles generally accepted in the United States of America, and for the design, implementation and maintenance of internal control relevant to the preparation and fair presentation of financial statements that are free of material misstatement, whether due to fraud or error. In preparing the financial statements, management is required to evaluate whether there are conditions or events, considered in the aggregate, that raise substantial doubt about the Company's ability to continue as a going concern for one year after the date that the financial statements are available to be issued. Auditor's Responsibilities for the Audit of the Financial Statements Our objectives are to obtain reasonable assurance about whether the financial statements as a whole are free of material misstatement, whether due to fraud or error, and to issue an auditor's report that includes our opinion. Reasonable assurance is a high level of assurance but is not an absolute guarantee that an audit conducted in accordance with GAAS will always detect a material misstatement when it exists. The risk of not detecting a material misstatement resulting from fraud is higher than one resulting from error, as fraud may involve collusion, forgery, intentional omissions, misrepresentations, or the override of internal control. Misstatements are considered material if there is a substantial likelihood that, individually or in the aggregate, they would influence the judgment made by a reasonable user based on the financial statements.

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![](outriggerdjmidstreamllc-004.jpg)

In performing and audit in accordance with GAAS, we:  Exercise professional judgement and maintain professional skepticism throughout the audit.  Identify and assess the risks of material misstatement of the financial statements, whether due to fraud or error, and design and perform audit procedures responsive to those risks. Such procedures include examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements.  Obtain an understanding of internal control relevant to the audit in order to design audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control. Accordingly, no such opinion is expressed.  Evaluate the appropriateness of accounting policies used and the reasonableness of significant accounting estimates made by management, as well as evaluate the overall presentation of the financial statements.  Conclude whether, in our judgement, there are conditions or events, considered in the aggregate, that raise substantial doubt about the Company's ability to continue as a going concern for a reasonable period of time. We are required to communicate with those changed with governance regarding, among other matters, the planned scope and timing of the audit, significant audit findings, and certain internal control-related matters that we identified during the audit. April 28, 2022

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![](outriggerdjmidstreamllc-005.jpg)

Outrigger DJ Midstream LLC and Subsidiary Consolidated Balance Sheets 5 As of December 31, 2021 2020 Assets Current assets: Cash and cash equivalents $7,796,322 $1,152,950 Accounts receivable 9,131,402 3,974,310 Prepaid expenses and other 443,562 519,971 Total current assets 17,371,286 5,647,231 Property, plant and equipment 210,628,946 199,053,380 Less - accumulated depreciation (17,829,901) (8,212,681) Property, plant and equipment, net $192,799,045 $190,840,699 Other long-term assets 105,000 105,000 Total assets $210,275,331 $196,592,930 Liabilities and members' equity Current liabilities: Accounts payable – trade $1,600,877 $1,484,421 Accounts payable – affiliate 179,887 586,210 Accrued liabilities – current 13,027,246 7,833,880 Total current liabilities 14,808,010 9,904,511 Accrued liabilities – long-term 3,700,000 3,700,000 Total liabilities $18,508,010 $13,604,511 Commitments and contingencies (Note 4) Members' equity Members' contributions $195,100,000 $185,500,000 Accumulated deficit (3,332,679) (2,511,581) Total members' equity $191,767,321 $182,988,419 Total liabilities and members' equity $210,275,331 $196,592,930 See accompanying notes to consolidated financial statements

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![](outriggerdjmidstreamllc-006.jpg)

Outrigger DJ Midstream LLC and Subsidiary Consolidated Statement of Operations 6 Year Ended December 31, 2021 2020 Revenues Product revenue $73,524,532 $22,358,898 Service revenue 933,333 1,709,244 Total revenue 74,457,865 24,068,142 Costs and expenses Cost of product $64,250,214 $17,356,016 Operating expenses 5,424,743 4,848,519 General and administrative expenses 192,272 3,749,495 Depreciation expense 9,623,522 6,572,572 Total operating expenses 79,490,751 32,526,602 Loss from operations (5,032,886) (8,458,460) Other income Other income - 211,988 Gain on sale of assets 4,211,788 6,800,000 Total other income $4,211,788 $7,011,988 Net loss $(821,098) $(1,446,472) See accompanying notes to consolidated financial statements

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![](outriggerdjmidstreamllc-007.jpg)

Outrigger DJ Midstream LLC and Subsidiary Consolidated Statement of Members' Equity 7 Member Contributions Accumulated Deficit Total Members' Equity Balance, January 1, 2020 $180,000,000 $(1,065,109) $178,934,891 Members' contributions 26,200,000 26,200,000 Distributions to members (17,000,000) (17,000,000) Adjustment for member liquidation (3,700,000) (3,700,000) Net loss (1,446,472) (1,446,472) Balance, December 31, 2020 $185,500,000 $(2,511,581) $182,988,419 Balance, January 1, 2021 $185,500,000 $(2,511,581) $182,988,419 Members' contributions 9,600,000 9,600,000 Net loss (821,098) (821,098) Balance, December 31, 2021 $195,100,000 $(3,332,679) $191,767,321 See accompanying notes to consolidated financial statements

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![](outriggerdjmidstreamllc-008.jpg)

Outrigger DJ Midstream LLC and Subsidiary Consolidated Statements of Cash Flows 8 Year Ended December 31, 2021 2020 Cash flows from operating activities Net loss $(821,098) $(1,446,472) Adjustments to reconcile net loss provided by operating activities Depreciation expense 9,623,522 6,572,572 Gain on sale of assets (4,211,788) (6,800,000) Changes in operating assets and liabilities Accounts receivable (5,157,092) 1,578,631 Prepaid expenses and other 76,410 (49,810) Accounts payable - trade 478,237 903,770 Accounts payable – affiliate (406,323) (82,276) Other current liabilities 5,193,366 5,624,164 Net cash provided by operating activities $4,775,234 $6,300,579 Cash flows from investing activities Additions to property, plant and equipment (11,951,873) (48,058,265) Proceeds from sale of assets 4,220,011 12,761,412 Net cash used in investing activities $(7,731,862) $(35,296,853) Cash flows from financing activities Proceeds from member contributions 9,600,000 26,200,000 Distributions to members - (17,000,000) Net cash provided by financing activities $9,600,000 $9,200,000 Net increase/(decrease) in cash and cash equivalents 6,643,372 (19,796,274) Cash and cash equivalents at beginning of year 1,152,950 20,949,224 Cash and cash equivalents at end of year $7,796,322 $1,152,950 Supplemental disclosure of noncash investing activities: Change in accrued property additions $(361,782) $(5,516,657) See accompanying notes to consolidated financial statements

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![](outriggerdjmidstreamllc-009.jpg)

Outrigger DJ Midstream LLC and Subsidiary Notes to Consolidated Financial Statements For the years ended December 31, 2021 and 2020 9 1. DESCRIPTION OF BUSINESS Organization Outrigger DJ Midstream LLC ("ODJM" or the "Company") was formed on August 7, 2018, as a Delaware limited liability company. Outrigger Energy II LLC ("Outrigger," or the "Manager"), a Delaware limited liability company, was initially a 90% member and Migration Midstream, LLC ("Migration"), a Delaware limited liability company, was initially a 10% member (together collectively, the "Members") and were the two members of ODJM, as defined by the Limited Liability Company Agreement of ODJM (the "Agreement") dated August 27, 2018. On April 16, 2020, Outrigger acquired the membership interest in ODJM from Migration as outlined in the ODJM Membership Interest Purchase and Sale Agreement dated April 16, 2020 for cash consideration of $12 million and a contingent capital reimbursement of $3.7 million. The contingent capital reimbursement provides a means for Migration to recoup the difference between the contributed capital of $15.7 million and the $12 million of cash consideration received if certain conditions including the consummation of the sale of the Company's DJ Basin assets are met. The Company has accounted for the contingent capital reimbursement of $3.7 million as a contingent liability presented within Other long-term liabilities on the balance sheet. As Migration was under common control, the transaction was accounted for at the carrying amount of the net assets acquired. Outrigger is now the sole member of ODJM. The Company is managed by Outrigger. All of the powers of the Company shall be exercised by or under the authority of, and the business and affairs of the Company and its subsidiary shall be managed under the sole direction of Outrigger (in such capacity, the Manager). The membership interest of each Member in the Company is personal property for all purposes. All property owned by the Company, whether real or personal, tangible or intangible, shall be deemed to be owned by the Company, and no Member has any ownership interest in any specific property of the Company. The Company shall hold all of its property in its own name. The Members have the right to receive a share of the profits and losses of, or distributions of assets of the Company based on the membership interest of each member. Distributions of available cash will be made at such times and in such amounts as the Manager shall determine. Any distribution shall be made to the Members pro rata in proportion to their respective sharing ratios in effect at the time of such distribution. Nature of Operations of the Company The Company is engaged in the business of: (1) gathering, compressing, treating, processing, and selling natural gas; (2) fractionating, treating, transporting, and selling natural gas liquids ("NGLs") and NGL products;(3) gathering, storing, and terminaling crude oil; and (4) storing, terminaling, and selling refined petroleum products. The Company owns and operates a 60MMCFD cryogenic processing plant and gathering system with over 175 miles of pipeline that is located within the Denver-Julesburg Basin ("DJ Basin") in Colorado. The Company's activities could be affected by changes in commodity prices. In general, the prices of commodities are subject to fluctuations in response to changes in supply, market uncertainty, and a variety of additional factors that are beyond the Company's control.

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![](outriggerdjmidstreamllc-010.jpg)

Outrigger DJ Midstream LLC and Subsidiary Notes to Consolidated Financial Statements For the years ended December 31, 2021 and 2020 10 Subsidiary of the Company Outrigger DJ Operating LLC ("ODJO"), a wholly owned subsidiary of the Company, was formed as a Delaware limited liability company on March 22, 2018. On that date, Outrigger was the sole member of ODJO. On August 27, 2018, Outrigger contributed cash and all of its equity interests in ODJO to the Company pursuant to that certain Equity Contribution Agreement dated August 27, 2018, by and between the Company and Outrigger in exchange for an initial membership interest constituting a 90% sharing ratio in the Company. Migration simultaneously contributed cash to the Company in exchange for an initial membership interest constituting a 10% sharing ratio in the Company. On April 16, 2020, Outrigger purchased the membership interest of Migration and is the sole member of ODJM. 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation The accompanying consolidated financial statements have been prepared in accordance with standards generally accepted in the United States of America ("GAAP"). The consolidated financial statements include all wholly-owned subsidiaries. All intercompany accounts and transactions between the entities have been eliminated in consolidation. Use of Estimates The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities. Although the Company believes these estimates are reasonable, actual results could materially differ from these estimates. Revenue Recognition We generate our revenues from midstream energy services, including gathering, transmission, and processing, through various contractual arrangements, which include fee-based contract arrangements or arrangements where we purchase and resell commodities in connection with providing the related service and earn a net margin for our fee based on throughput volumes. While our transactions vary in form, the essential element of most of our transactions is the use of our assets to transport a product or provide a processed product to an end-user or marketer at the tailgate of the plant. Revenues from both "Service revenue" and "Product revenue" represent revenues from contracts with customers and are reflected on the consolidated statements of operations as follows: • Product revenue — Product revenue represents the sale of natural gas, NGLs, crude oil, and condensate where the product is purchased and resold in connection with providing our midstream services as outlined above. • Service revenue — Service revenue represents all other revenue generated as a result of

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![](outriggerdjmidstreamllc-011.jpg)

Outrigger DJ Midstream LLC and Subsidiary Notes to Consolidated Financial Statements For the years ended December 31, 2021 and 2020 11 performing our midstream services outlined above. Evaluation of Our Contractual Performance Obligations In accordance with the revenue recognition framework, we identified our performance obligations under our contracts with customers. These performance obligations include: • promises to perform midstream services for our customers over a specified contractual term and/or for a specified volume of commodities; and • promises to sell a specified volume of commodities to our customers. The identification of performance obligations under our contracts requires a contract-by-contract evaluation of when control, including the economic benefit, of commodities transfers to and from us (if at all). For contracts where control of commodities transfers to us before we perform our services, we generally have no performance obligation for our services, and accordingly, we do not consider these revenue-generating contracts. Based on the control determination, all contractually-stated fees that are deducted from our payments to producers or other suppliers for commodities purchased are reflected as a reduction in the cost of such commodity purchases. For contracts where control of commodities never transfers to us and we earn a fee for our services, we recognize these fees as services revenues as we satisfy our performance obligations. Control is assessed on a contract-by-contract basis by analyzing each contract's provisions, which can include provisions for: the customer to take its residue gas and/or NGLs in-kind; fixed or actual NGL or keep-whole recovery; commodity purchase prices at weighted average sales price or market index-based pricing; and various other contract-specific considerations. Based on this control assessment, our gathering and processing contracts fall into two primary categories: • For gathering and processing contracts in which there is a commodity purchase and analysis of the contract provisions indicates that control, including the economic benefit, of the natural gas passes to us when the natural gas is brought into our system, we do not consider these contracts to contain performance obligations for our services. As control of the natural gas passes to us prior to performing our gathering and processing services, we are, in effect, performing our services for our own benefit. Based on this control determination, we consider the contractually-stated fees to serve as pricing mechanisms that reduce the cost of such commodity purchased upon receipt of the natural gas, rather than being recorded as midstream services revenue. Upon sale of the residue gas and/or NGLs to a third-party customer, we record product sales revenue at the price at which the commodities are sold, with a corresponding cost of sales equal to the cost of the commodities purchased. • For gathering and processing contracts in which there is a commodity purchase and analysis of the contract provisions indicates that control, including the economic benefit, of the natural gas does not pass to us until after the natural gas has been gathered and processed, we consider these contracts to contain performance obligations for our

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![](outriggerdjmidstreamllc-012.jpg)

Outrigger DJ Midstream LLC and Subsidiary Notes to Consolidated Financial Statements For the years ended December 31, 2021 and 2020 12 services. Accordingly, we consider the satisfaction of these performance obligations as revenue-generating, and we recognize the fees received for satisfying these performance obligations as midstream services revenues as we satisfy our performance obligations. We also evaluate our contractual arrangements that contain a purchase and sale of commodities under the principal/agent provisions. For contracts where we possess control of the commodity and act as principal in the purchase and sale, we record product sales revenue at the price at which the commodities are sold, with a corresponding cost of sales equal to the cost of the commodities when purchased. For contracts in which we do not possess control of the commodity and are acting as an agent, our consolidated statements of operations only reflect midstream services revenues that we earn based on the fees contained in the applicable contract. For our gas gathering agreements, we have determined that control, including the economic benefit, of commodities has passed to us once the commodities have been purchased from the customer. Therefore, we consider the contractually-stated fees to serve as pricing mechanisms that reduce the cost of such commodity purchased upon receipt of the commodity, rather than being recorded as midstream services revenue. For our crude oil gathering agreements, we have determined that control of the commodity does not pass to us, rather remains with the producer at all times. Therefore, we receive, gather, and redeliver crude oil to the producer. We consider these contracts to contain performance obligations for our gathering services, for which we record these crude oil gathering fees as service revenue over time as we satisfy our performance obligation. Because control of the commodity does not pass to us, we do not record crude oil product sales revenue or the corresponding cost of sales. We recognize the fees received for satisfying the performance obligations as midstream services revenues as we satisfy our performance obligations Satisfaction of Performance Obligations and Recognition of Revenue For our commodity sales contracts, we satisfy our performance obligations at the point in time at which the commodity transfers from us to the customer. This transfer pattern aligns with our billing methodology. Therefore, we recognize product sales revenue at the time the commodity is delivered and in the amount to which we have the right to invoice the customer. For our midstream service contracts that contain revenue-generating performance obligations, we satisfy our performance obligations over time as we perform the midstream service and as the customer receives the benefit of these services over the term of the contract. We are utilizing the practical expedient that allows an entity to recognize revenue in the amount to which the entity has a right to invoice, since we have a right to consideration from our customer in an amount that corresponds directly with the value to the customer of our performance completed to date. Accordingly, we continue to recognize revenue over time as our midstream services are

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Outrigger DJ Midstream LLC and Subsidiary Notes to Consolidated Financial Statements For the years ended December 31, 2021 and 2020 13 performed. Cash and Cash Equivalents Cash and cash equivalents include all cash balances and highly liquid investments with an original maturity of three months or less. As of December 31, 2021, and 2020, the Company has cash in its bank accounts that was in excess of federally insured limits. Accounts Receivable Accounts receivable consists of the following (in thousands): Year Ended December 31, 2021 2020 Trade receivables $9,131,402 $3,174,310 Other receivables - 800,000 Total accounts receivable $9,131,402 $3,974,310 The Company's accounts receivable consists mainly of accrued revenue from service revenue and the sale of oil, gas, and NGLs to purchasers. Generally, the Company's accrued revenues are collected within two months. Collectability is dependent upon the financial wherewithal of each individual counterparty and is influenced by the general economic conditions of the industry. The Company's receivables are not collateralized. The Company has not experienced significant credit losses in the past, and management has determined outstanding receivables balances to be collectible. The Company determined that no allowance was necessary as of December 31, 2021 and 2020. For the years ending December 31, 2021 and 2020, accounts receivable includes receivables from three customers representing 90% and 89%, respectively, of total accounts receivable. Revenue includes sales to three customers representing 93% and 88% of total revenue for the years ended December 31, 2021 and 2020, respectively. Long Lived Assets Property, Plant and Equipment Property, plant and equipment are recorded at historical cost of construction. The Company also capitalizes expenditures that add system capacity, materially extend the useful life of an asset and enhance its productivity or efficiency from its original design over the expected remaining period of use. Maintenance and repairs that do not add capacity or extend the useful life of an asset are expensed as incurred. Interest costs for material construction projects are capitalized to property, plant, and equipment until the asset is ready for its intended use. The Company bases an asset's carrying value on estimates, assumptions, and judgments for useful life and salvage value.

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Outrigger DJ Midstream LLC and Subsidiary Notes to Consolidated Financial Statements For the years ended December 31, 2021 and 2020 14 Depreciation is recorded on a straight-line basis over an asset's estimated useful life. Estimates of useful life are based on various factors including manufacturing specifications, technological advances, and historical data concerning useful lives of similar assets. Upon sale or retirement, the carrying value of an asset and its accumulated depreciation is removed from the Consolidated Balance Sheets and the related gain or loss is recognized. Construction in progress is stated at cost, which includes the cost of construction and other direct costs attributable to construction including internal development costs, external financing and interest costs that meet capitalization criteria. Depreciation does not commence on construction in progress until such time as the relevant assets are completed and placed into use. Review of Carrying Value of Long-Lived Assets The Company periodically evaluates whether the carrying value of long-lived assets has been impaired when circumstances indicate the carrying value of those assets may not be recoverable. This evaluation is based on undiscounted cash flow projections. The carrying amount is not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset. If the carrying value is not recoverable, the impairment loss is measured as the excess of the asset's carrying value over its fair value. The Company assesses the fair value of long-lived assets using commonly accepted techniques, and may use more than one method, including, but not limited to, recent third-party comparable sales and discounted cash flow models. Significant changes in market conditions resulting from events such as the condition of an asset or a change in management's intent to utilize the asset would generally require management to reassess the cash flows related to the long-lived assets. A period of lower commodity prices may adversely affect our estimate of future operating results, which could result in future impairment due to the potential impact on our operations and cash flows. For the years ended December 31, 2021 and 2020, the Company determined there was no impairment of the Company's long-lived assets. Disposal of Assets When property and equipment is retired, sold, transferred, or otherwise disposed of, the asset's carrying amount and related accumulated depreciation are removed from the accounts and any gain or loss is included in operations. During 2020, the Company sold its crude and water gathering assets with a net book value of $6,761,412 to a third-party for $13,561,412 in proceeds and the Company recognized a gain on the sale of $6,800,000. During 2021, the Company received additional earn-out payments related to the aforementioned sale in 2020 of its crude and water gathering assets in the amount of $4,200,000, which has been recognized as a gain in the current period statement of operations. Asset Retirement Obligations

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Outrigger DJ Midstream LLC and Subsidiary Notes to Consolidated Financial Statements For the years ended December 31, 2021 and 2020 15 In the ordinary course of our business, we may create asset retirement obligations to remove facilities and equipment on rights-of-way, surface site agreements, and other leased facilities. If and when it is determined that a legal obligation has been incurred, the fair value of any liability would be determined based on estimates and assumptions related to retirement costs, future inflation rates and interest rates. We currently cannot reasonably estimate the fair value of these obligations because the associated assets have an indeterminate life since they are owned and will operate for an indeterminate future period when properly maintained. These assets include pipelines and processing plants. An asset retirement obligation, if any, will be recognized once sufficient information is available to reasonably estimate the fair value of the obligations. As of December 31, 2021, and 2020, we evaluated the need to record any future asset retirement obligations, and in performing this evaluation, we concluded that no future obligations should be recognized. Environmental Matters The Company is subject to various federal, state, and local laws and regulations relating to the protection of the environment. Although the Company believes that it is in material compliance with applicable environmental regulations, the risk of costs and liabilities are inherent in pipeline ownership and operation. Liabilities for loss contingencies, including environmental remediation costs, arising from claims, assessments, litigation, fines and penalties, and other sources are charged to expense when it is probable that a liability has been incurred and the amount of the assessment and/or remediation can be reasonably estimated. The Company records accruals for environmental liabilities based on management's best estimates, using all information that is available at the time. The Company measures estimates and base liabilities on currently available facts, existing technology, and presently enacted laws and regulations. When measuring environmental liabilities, the Company also considers other companies' cleanup experience, and data released by the U.S. Environmental Protection Agency or other organizations. The Company considers unasserted claims when making a determination of environmental liabilities and accrues them in the period they are both probable and reasonably estimable. As of December 31, 2021 and 2020, the Company did not have any environmental accruals. However, the Company can provide no assurances that significant costs and liabilities will not be incurred in the future. The Company is currently not aware of any contingent liabilities that exist with respect to environmental matters. Income Taxes The Company is a limited liability company and therefore is not a tax-paying entity for federal and state income tax purposes. Accordingly, a provision for federal income taxes has not been recorded in the accompanying consolidated financial statements. Taxable income or losses are reflected in the members' income tax returns in accordance with their ownership percentages.

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Outrigger DJ Midstream LLC and Subsidiary Notes to Consolidated Financial Statements For the years ended December 31, 2021 and 2020 16 Recently Issued Accounting Standards In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which will require lessees to recognize a right-of-use asset and a lease liability for all leases that have a term longer than one year. The pronouncements effective date was extended to be effective for annual periods beginning after December 15, 2021, with early adoption permitted. Upon adoption, the Company will recognize a lease liability and corresponding right-to-use asset based on the present value of the minimum lease payments. The right-to-use asset is offset by a corresponding liability. The Company is currently in the process of evaluating the impact on the Company's consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, followed by other related ASUs that provided targeted improvements (collectively "ASU 2016-13"). ASU 2016-13 provides financial statement users with more useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. The standard is effective for the Company on January 1, 2023. The Company is currently assessing the impact of ASU 2016-13 on its consolidated financial statements. 3. PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment consisted of the following as of: Estimated Useful Life December 31, (in years) 2021 2020 Computers and computer software 5 $20,792 $16,827 Gathering systems 20 168,830,264 158,222,309 Vehicles 5 299,167 313,693 Right of way 20 25,787,405 25,589,566 Total 194,937,628 184,142,395 Less accumulated depreciation (17,829,901) (8,212,681) Construction in progress 14,233,549 13,453,216 Land 1,457,769 1,457,769 Property, plant and equipment, net $192,799,045 $190,840,699 Depreciation expense was $9,623,522 and $6,572,572 for the years ended December 31, 2021 and 2020, respectively.

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Outrigger DJ Midstream LLC and Subsidiary Notes to Consolidated Financial Statements For the years ended December 31, 2021 and 2020 17 Construction in Progress The Company is expanding one of its compressor stations and constructing additional gathering systems in the DJ Basin of northern Colorado. Construction in Progress includes all construction costs of projects that have not yet been placed into service. 4. COMMITMENTS AND CONTINGENCIES Contingencies In the normal course of business, the Company may be party to litigation and claims from time to time. The Company accrues for such items when a liability is both probable and the amount can be reasonably estimated. In the opinion of management, the anticipated results of any pending litigation and claims are not expected to have a material effect on the results of operations, the financial position, or the cash flows of the Company. The Company was not involved in any litigation nor is aware of any unasserted claims as of December 31, 2021 and 2020. 5. FAIR VALUE MEASUREMENTS Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company uses valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs when determining fair value and then ranks the estimated values based on the reliability of the inputs used following the fair value hierarchy. The three levels of the fair value hierarchy are as follows: Level 1 – Observable inputs that reflect unadjusted quoted prices for identical assets or liabilities in active markets as of the reporting date. Active markets are those in which transactions for the asset or liability occur in sufficient frequency and volume to provide pricing information on an ongoing basis. Level 2 – Observable market-based inputs or unobservable inputs that are corroborated by market data. These are inputs other than quoted prices in active markets included in Level 1, which are either directly or indirectly observable as of the reporting date. Level 3 – Unobservable inputs that are not corroborated by market data and may be used with internally developed methodologies that result in management's best estimate of fair value. The carrying amount of cash and cash equivalents, accounts receivable, and accounts payable reported on the Consolidated Balance Sheets approximates fair value due to their short-term maturities.

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Outrigger DJ Midstream LLC and Subsidiary Notes to Consolidated Financial Statements For the years ended December 31, 2021 and 2020 18 6. SUBSEQUENT EVENTS The Company has reviewed and updated subsequent events through April 28, 2022 the date the consolidated financial statements were available to be issued. There were no other material subsequent events that required recognition or additional disclosure in the consolidated financial statements.

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## Exhibit 99.4

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1 Outrigger DJ Midstream LLC and Subsidiary Consolidated Financial Statements (Unaudited) As of September 30, 2022 and December 31, 2021 and for the nine month periods ended September 30, 2022 and September 30, 2021

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2 Consolidated Balance Sheets as of September 30, 2022 and December 31, 2021 3 Consolidated Statements of Operations for the periods ended September 30, 2022 and 2021 4 Consolidated Statements of Member's Equity for the periods ended September 30, 2022 and 2021 5 Consolidated Statements of Cash Flows for the periods ended September 30, 2022 and 2021 6 Notes to Consolidated Financial Statements 7

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Outrigger DJ Midstream LLC and Subsidiary Consolidated Balance Sheets (Unaudited) 3 September 30, 2022 December 31, 2021 Assets Current assets: Cash and cash equivalents $2,220,779 $7,796,322 Accounts receivable 11,327,125 9,131,402 Prepaid expenses 557,298 443,562 Total current assets 14,105,202 17,371,286 Property, plant and equipment 215,066,410 210,628,946 Less - accumulated depreciation (25,341,668) (17,829,901) Property, plant and equipment, net $189,724,742 $192,799,045 Other long-term assets 55,000 105,000 Total assets $203,884,944 $210,275,331 Liabilities and member's equity Current liabilities: Accounts payable – trade $237,704 $1,600,877 Accounts payable – affiliate 180,534 179,887 Accrued liabilities – current 8,458,033 13,027,246 Total current liabilities 8,876,271 14,808,010 Accrued liabilities – long-term 3,700,000 3,700,000 Total liabilities $12,576,271 $18,508,010 Commitments and contingencies (Note 4) Member's equity Member contributions $183,600,000 $195,100,000 Accumulated earnings/(deficit) 7,708,673 (3,332,679) Total member's equity $191,308,673 $191,767,321 Total liabilities and member's equity $203,884,944 $210,275,331 See accompanying notes to unaudited consolidated financial statements

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Outrigger DJ Midstream LLC and Subsidiary Consolidated Statement of Operations (Unaudited) 4 Nine Months Ended September 30, 2022 2021 Revenues Product revenue $83,642,014 $43,368,728 Service revenue 532,696 734,590 Total revenue 84,174,710 44,103,318 Costs and expenses Cost of product $63,926,514 $33,280,915 Operating expenses 3,692,260 3,109,143 General and administrative expenses 221,293 112,984 Depreciation expense 7,586,268 7,174,660 Total operating expenses 75,426,335 43,677,702 Income from operations 8,748,375 425,616 Other income Interest/other income 141,573 - Gain on sale of assets 2,151,404 1,611,788 Total other income $2,292,977 $1,611,788 Net income $11,041,352 $2,037,404 See accompanying notes to unaudited consolidated financial statements

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Outrigger DJ Midstream LLC and Subsidiary Consolidated Statement of Member's Equity (Unaudited) 5 Member Contributions/ (Distributions) Accumulated (Deficit)/Earnings Total Member's Equity Balance, January 1, 2021 $185,500,000 $(2,511,581) $182,988,419 Member contributions 9,600,000 - 9,600,000 Net income - 2,037,404 2,037,404 Balance, September 30, 2021 $195,100,000 $(474,177) $194,625,823 Balance, January 1, 2022 $195,100,000 $(3,332,679) $191,767,321 Member distributions (11,500,000) - (11,500,000) Net income - 11,041,352 11,041,352 Balance, September 30, 2022 $183,600,000 $7,708,673 $191,308,673 See accompanying notes to unaudited consolidated financial statements

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Outrigger DJ Midstream LLC and Subsidiary Consolidated Statements of Cash Flows (Unaudited) 6 Nine Months Ended September 30, 2022 2021 Cash flows from operating activities Net income $11,041,352 $2,037,404 Adjustments to reconcile net income provided by operating activities Depreciation expense 7,586,268 7,174,660 Gain on sale of assets (2,151,404) (1,611,788) Changes in operating assets and liabilities Accounts receivable (2,195,723) (2,923,683) Prepaid expenses (113,736) (35,795) Accounts payable - trade (1,286,907) (873,506) Accounts payable – affiliate 647 (451,213) Other current liabilities (4,569,213) (2,246,244) Net cash provided by operating activities $8,311,284 $1,069,835 Cash flows from investing activities Additions to property, plant and equipment, net (5,143,130) (11,348,434) Proceeds from sale of assets 2,756,303 1,620,011 Net cash used in investing activities $(2,386,827) $(9,728,423) Cash flows from financing activities Proceeds from member contributions - 9,600,000 Distributions to member (11,500,000) - Net cash (used in)/provided by financing activities $(11,500,000) $9,600,000 Net (decrease)/increase in cash and cash equivalents (5,575,543) 941,412 Cash and cash equivalents at beginning of year 7,796,322 1,152,950 Cash and cash equivalents at end of year $2,220,779 $2,094,362 Supplemental disclosure of noncash investing activities: Change in accrued property additions $(76,264) $(81,155) See accompanying notes to unaudited consolidated financial statements

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Outrigger DJ Midstream LLC and Subsidiary Notes to Consolidated Financial Statements (Unaudited) 7 1. DESCRIPTION OF BUSINESS Organization Outrigger DJ Midstream LLC ("ODJM" or the "Company") was formed on August 7, 2018, as a Delaware limited liability company. Outrigger Energy II LLC ("Outrigger," or the "Manager"), a Delaware limited liability company, was initially a 90% member and Migration Midstream, LLC ("Migration"), a Delaware limited liability company, was initially a 10% member (together collectively, the "Members") and were the two members of ODJM, as defined by the Limited Liability Company Agreement of ODJM (the "Agreement") dated August 27, 2018. On April 16, 2020, Outrigger acquired the membership interest in ODJM from Migration as outlined in the ODJM Membership Interest Purchase and Sale Agreement dated April 16, 2020 for cash consideration of $12 million and a contingent capital reimbursement of $3.7 million. The contingent capital reimbursement provides a means for Migration to recoup the difference between the contributed capital of $15.7 million and the $12 million of cash consideration received if certain conditions including the consummation of the sale of the Company's DJ Basin assets are met. The Company has accounted for the contingent capital reimbursement of $3.7 million as a contingent liability presented within Other long-term liabilities on the balance sheet. Subsequent to the date of these financial statements, this contingent liability was relieved. See further discussion in Note 6. As Migration was under common control, the transaction was accounted for at the carrying amount of the net assets acquired. Outrigger is now the sole member of ODJM. The Company is managed by Outrigger. All of the powers of the Company shall be exercised by or under the authority of, and the business and affairs of the Company and its subsidiary shall be managed under the sole direction of Outrigger (in such capacity, the Manager). The membership interest of each Member in the Company is personal property for all purposes. All property owned by the Company, whether real or personal, tangible or intangible, shall be deemed to be owned by the Company, and no Member has any ownership interest in any specific property of the Company. The Company shall hold all of its property in its own name. The Member has the right to receive a share of the profits and losses of, or distributions of assets of the Company based on the membership interest of each member. Distributions of available cash will be made at such times and in such amounts as the Manager shall determine. During the period ended September 30, 2022, the Company distributed $11.5 million to its sole Member. Nature of Operations of the Company The Company is engaged in the business of: (1) gathering, compressing, treating, processing, and selling natural gas; (2) fractionating, treating, transporting, and selling natural gas liquids ("NGLs") and NGL products; (3) gathering, storing, and terminaling crude oil; and (4) storing, terminaling, and selling refined petroleum products. The Company owns and operates a 60MMCFD cryogenic processing plant and gathering system with over 175 miles of pipeline that is located within the Denver-Julesburg Basin ("DJ Basin") in Colorado. The Company's activities could be affected by changes in commodity prices. In general, the prices of commodities are subject to fluctuations in response to changes in supply, market uncertainty, and a variety of

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Outrigger DJ Midstream LLC and Subsidiary Notes to Consolidated Financial Statements (Unaudited) 8 additional factors that are beyond the Company's control. Subsidiary of the Company Outrigger DJ Operating LLC ("ODJO"), a wholly owned subsidiary of the Company, was formed as a Delaware limited liability company on March 22, 2018. On that date, Outrigger was the sole member of ODJO. On August 27, 2018, Outrigger contributed cash and all of its equity interests in ODJO to the Company pursuant to that certain Equity Contribution Agreement dated August 27, 2018, by and between the Company and Outrigger in exchange for an initial membership interest constituting a 90% sharing ratio in the Company. Migration simultaneously contributed cash to the Company in exchange for an initial membership interest constituting a 10% sharing ratio in the Company. On April 16, 2020, Outrigger purchased the membership interest of Migration and is the sole member of ODJM. 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The significant accounting policies followed by the Company are set forth in Note 2 – Summary of Significant Accounting Policies in the 2021 consolidated financial statements and are supplemented by the notes to the unaudited consolidated financial statements included in this report. These unaudited consolidated financial statements should be read in conjunction with the 2021 consolidated financial statements. Recently Issued Accounting Standards In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which will require lessees to recognize a right-of-use asset and a lease liability for all leases that have a term longer than one year. The pronouncements effective date was extended to be effective for annual periods beginning after December 15, 2021, and interim periods within fiscal years beginning after December 15, 2022, with early adoption permitted. Upon adoption, the Company will recognize a lease liability and corresponding right-to-use asset based on the present value of the minimum lease payments. The right-to-use asset is offset by a corresponding liability. The Company is currently in the process of evaluating the impact on the Company's consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, followed by other related ASUs that provided targeted improvements (collectively "ASU 2016-13"). ASU 2016-13 provides financial statement users with more useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. The standard is effective for the Company on January 1, 2023. The Company is currently assessing the impact of ASU 2016-13 on its consolidated financial statements.

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Outrigger DJ Midstream LLC and Subsidiary Notes to Consolidated Financial Statements (Unaudited) 9 3. PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment consisted of the following as of: September 30, December 31, 2022 2021 Computers and computer software $20,792 $20,792 Gathering systems 180,288,488 168,830,264 Vehicles 182,111 299,167 Right of way 27,855,727 25,787,405 Other 1,643,447 - Total 209,990,565 194,937,628 Less accumulated depreciation (25,341,668) (17,829,901) Subtotal 184,648,897 177,107,727 Construction in progress 3,845,412 14,233,549 Land 1,230,433 1,457,769 Property, plant and equipment, net $189,724,742 $192,799,045 Depreciation expense was $7,586,268 and $7,174,660 for the nine months ended September 30, 2022 and 2021, respectfully. Construction in Progress The Company began expanding one of its compressor stations and constructing additional gathering systems in the DJ Basin of northern Colorado in late 2021 and continues to expand in 2022. Construction in Progress includes all construction costs of projects that have not yet been placed into service. 4. COMMITMENTS AND CONTINGENCIES Contingencies In the normal course of business, the Company may be party to litigation and claims from time to time. The Company accrues for such items when a liability is both probable and the amount can be reasonably estimated. In the opinion of management, the anticipated results of any

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Outrigger DJ Midstream LLC and Subsidiary Notes to Consolidated Financial Statements (Unaudited) 10 pending litigation and claims are not expected to have a material effect on the results of operations, the financial position, or the cash flows of the Company. The Company was not involved in any litigation nor is aware of any unasserted claims as of September 30, 2022 and December 31, 2021. 5. FAIR VALUE MEASUREMENTS Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company uses valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs when determining fair value and then ranks the estimated values based on the reliability of the inputs used following the fair value hierarchy. The three levels of the fair value hierarchy are as follows: Level 1 – Observable inputs that reflect unadjusted quoted prices for identical assets or liabilities in active markets as of the reporting date. Active markets are those in which transactions for the asset or liability occur in sufficient frequency and volume to provide pricing information on an ongoing basis. Level 2 – Observable market-based inputs or unobservable inputs that are corroborated by market data. These are inputs other than quoted prices in active markets included in Level 1, which are either directly or indirectly observable as of the reporting date. Level 3 – Unobservable inputs that are not corroborated by market data and may be used with internally developed methodologies that result in management's best estimate of fair value. The carrying amount of cash and cash equivalents, accounts receivable, and accounts payable reported on the Consolidated Balance Sheets approximates fair value due to their short-term maturities. 6. SUBSEQUENT EVENTS The Company has reviewed and updated subsequent events through December 16, 2022 the date the consolidated financial statements were available to be issued. Subsequent to September 30, 2022, the Company entered into a Membership Interest Purchase and Sale Agreement with a third party dated October 14, 2022. The Company was subsequently sold to the third party with an effective closing date of December 1, 2022. As described further in Note 1, as a result of the Membership Interest Purchase Agreement with Migration, a contingent capital reimbursement of $3.7 million was recorded as a contingent liability to be paid to Migration should 1) the Company be divested prior to December 31, 2023 and 2) the sale price exceed a defined amount. As a result of the Membership Interest Purchase and Sale Agreement with a third party, discussed above, the first requirement of this contingent payment was satisfied, however the sale price did not meet the contractual defined amount and therefore the contingent capital reimbursement is no longer due to Migration. Gain contingencies

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Outrigger DJ Midstream LLC and Subsidiary Notes to Consolidated Financial Statements (Unaudited) 11 are not recognized in the financial statements until the period in which all contingencies are resolved and the gain is realized or realizable. As a result, the contingent liability remains on the balance sheet at September 30, 2022 and the liability will be derecognized and a gain will be recognized in the fourth quarter 2022. There were no other material subsequent events that required recognition or additional disclosure in the consolidated financial statements.

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## Exhibit 99.5

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Combined Financial Statements and Report of Independent Certified Public Accountants Sterling Conveyed Entities December 31, 2021 and 2020

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Contents Page Report of Independent Certified Public Accountants 3 Combined Financial Statements Combined statements of financial position 5 Combined statements of operations 6 Combined statements of member's equity 7 Combined statements of cash flows 8 Notes to combined financial statements 9

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;GT.COM Grant Thornton LLP is the U.S. member firm of Grant Thornton International Ltd (GTIL). GTIL and each of its member firms are separate legal entities and are not a worldwide partnership. Board of Directors Summit Midstream Partners, LP Opinion We have audited the combined financial statements of the Sterling Conveyed Entities (including Sterling Energy Investments LLC, Centennial Water Pipelines LLC and Grasslands Energy Marketing LLC) (collectively, the "Company"), which comprise the combined statements of financial position as of December 31, 2021 and 2020, and the related combined statements of operations, member's equity, and cash flows for the years then ended, and the related notes to the financial statements. In our opinion, the accompanying combined financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2021 and 2020, and the results of their cash flows for the years then ended in accordance with accounting principles generally accepted in the United States of America. Basis for opinion We conducted our audits of the combined financial statements in accordance with auditing standards generally accepted in the United States of America (US GAAS). Our responsibilities under those standards are further described in the Auditor's Responsibilities for the Audit of the Financial Statements section of our report. We are required to be independent of the Company and to meet our other ethical responsibilities in accordance with the relevant ethical requirements relating to our audits. We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our audit opinion. Responsibilities of management for the financial statements Management is responsible for the preparation and fair presentation of the combined financial statements in accordance with accounting principles generally accepted in the United States of America, and for the design, implementation, and maintenance of internal control relevant to the preparation and fair presentation of combined financial statements that are free from material misstatement, whether due to fraud or error. In preparing the combined financial statements, management is required to evaluate whether there are conditions or events, considered in the aggregate, that raise substantial doubt about the Company's ability to continue as a going concern for one year after the date the financial statements are available to be issued. REPORT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS GRANT THORNTON LLP 211 N. Robinson, Suite 1200 Oklahoma City, OK 73102 D +1 405 218 2800 F +1 405 218 2801

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Auditor's responsibilities for the audit of the financial statements Our objectives are to obtain reasonable assurance about whether the combined financial statements as a whole are free from material misstatement, whether due to fraud or error, and to issue an auditor's report that includes our opinion. Reasonable assurance is a high level of assurance but is not absolute assurance and therefore is not a guarantee that an audit conducted in accordance with US GAAS will always detect a material misstatement when it exists. The risk of not detecting a material misstatement resulting from fraud is higher than for one resulting from error, as fraud may involve collusion, forgery, intentional omissions, misrepresentations, or the override of internal control. Misstatements are considered material if there is a substantial likelihood that, individually or in the aggregate, they would influence the judgment made by a reasonable user based on the combined financial statements. In performing an audit in accordance with US GAAS, we:  Exercise professional judgment and maintain professional skepticism throughout the audit.  Identify and assess the risks of material misstatement of the combined financial statements, whether due to fraud or error, and design and perform audit procedures responsive to those risks. Such procedures include examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements.  Obtain an understanding of internal control relevant to the audit in order to design audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control. Accordingly, no such opinion is expressed.  Evaluate the appropriateness of accounting policies used and the reasonableness of significant accounting estimates made by management, as well as evaluate the overall presentation of the combined financial statements.  Conclude whether, in our judgment, there are conditions or events, considered in the aggregate, that raise substantial doubt about the Company's ability to continue as a going concern for a reasonable period of time. We are required to communicate with those charged with governance regarding, among other matters, the planned scope and timing of the audit, significant audit findings, and certain internal control–related matters that we identified during the audit. Oklahoma City, Oklahoma February 14, 2023

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2021 2020 ASSETS Current assets Cash 3,275$5,280$ Accounts receivable, net of allowance for doubtful accounts 8,607 5,235 Inventories 2,657 2,697 Other current assets 584 635 Total current assets 15,123 13,847 Noncurrent assets Property, plant, and equipment 256,982 252,657 Accumulated depreciation (75,278) (63,016) Total property, plant and equipment, net 181,704 189,641 Other intangible assets, net 10,516 11,885 Goodwill 1,484 1,484 Other long-term assets 2 27 Total assets 208,829$216,884$ LIABILITIES AND MEMBER'S EQUITY Current liabilities Accounts payable 5,436$5,528$ Accrued expenses 3,418 1,508 Short-term liabilities 26 35 Total current liabilities 8,880 7,071 Noncurrent liabilities Long-term debt - 45 Deferred earn out 5,900 5,500 Equity Member's equity 194,049 204,268 Total liabilities and member's equity 208,829$216,884$ Sterling Conveyed Entities COMBINED STATEMENTS OF FINANCIAL POSITION December 31, (in thousands) The accompanying notes are an integral part of these combined financial statements. 5

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2021 2020 Operating revenues Residue gas sales 32,822$16,509$ Natural gas liquid sales 35,731 18,936 Third party product sales 18,208 12,349 Condensate sales 3,643 2,115 Water sales 6,241 5,402 Total operating revenues 96,645 55,311 Operating costs and expenses Natural gas product purchases 59,089 23,895 Water royalties and costs 869 381 Operating and maintenance costs 12,469 11,759 Depreciation / amortization expense 14,006 13,924 Bad debt expense - 350 General and administrative expense 6,010 3,604 Total operating costs and expenses 92,443 53,913 Operating income 4,202 1,398 Other (loss) income (1,173) 210 Interest (expense) income 23 (27) Total other expense (1,150) 183 Net income 3,052$1,581$ Sterling Conveyed Entities COMBINED STATEMENTS OF OPERATIONS Years ended December 31, (in thousands) The accompanying notes are an integral part of these combined financial statements. 6

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Member's Equity Balance, December 31, 2019 209,437$ Distributions to Parent (SIH) (6,750) Net income 1,581 Balance, December 31, 2020 204,268 Distributions to Parent (SIH) (13,271) Net income 3,052 Balance, December 31, 2021 194,049$ Sterling Conveyed Entities COMBINED STATEMENTS OF MEMBER'S EQUITY (in thousands) Years ended December 31, 2021 and 2020 The accompanying notes are an integral part of these combined financial statements. 7

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2021 2020 Operating activities: Net income 3,052$1,581$ Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 14,006 13,924 Bad debt expense - 350 (Gain) / loss on deferred earn-out 400 (1,100) (Gain) / loss on sale of assets (25) (67) Changes in operating assets and liabilities: Accounts receivable (3,372) 1,837 Other assets 76 (59) Inventories (131) (20) Accounts payable (92) (3,374) Accrued expenses 1,632 (463) Deferred revenue - (1,114) Net cash provided by operating activities 15,546 11,495 Investing activities: Additions of property, plant, and equipment (4,235) (3,801) Proceeds on sale of assets 10 21 Net cash used in investing activities (4,225) (3,780) Financing activities: Distributions to Parent (SIH) (13,271) (6,750) Installment purchases/(repayment) (55) (53) Net cash used in financing activities (13,326) (6,803) Net (decrease) increase in cash and cash equivalents (2,005) 912 Cash and cash equivalents at beginning of year 5,280 4,368 Cash and cash equivalents at end of year 3,275$5,280$ Supplemental disclosures of operating and investing activities Non-cash transactions Equipment inventory 171$(387)$ Accrued liabilities 277 (422) Sterling Conveyed Entities COMBINED STATEMENTS OF CASH FLOWS Years ended December 31, (in thousands) The accompanying notes are an integral part of these combined financial statements. 8

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Sterling Conveyed Entities NOTES TO COMBINED FINANCIAL STATEMENTS December 31, 2021 and 2020 (All dollar amounts in thousands unless otherwise noted) 9 NOTE 1 - ORGANIZATION AND NATURE OF ACTIVITIES The combined financial statements include the financial position and operations of Sterling Energy Investments LLC (SEI), Centennial Water Pipelines LLC (CWP) and Grasslands Energy Marketing LLC (GEM) (together, the Company) on a combined basis. Each of these entities, SEI, CWP and GEM, are wholly-owned subsidiaries of Sterling Investment Holdings LLC (SIH). SEI, a Colorado corporation, was formed by SIH in 2011. CWP and GEM are both Delaware LLCs and were formed in 2013. SEI provides natural gas gathering and processing infrastructure and related services through its gathering system, the Centennial System, serving oil and gas production companies in the Denver-Julesburg (DJ)/Niobrara basin in northeast Colorado. CWP supplies and provides transportation of fresh water to oil and gas production companies in the DJ/Niobrara basin through its Centennial Water System. GEM provides natural gas liquids (NGLs) transportation and marketing services on behalf of SEI and oil and gas production companies in the DJ/Niobrara basin. NOTE 2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of presentation The combined financial statements referred to above contain the financial position of the Company as of December 31, 2021 and 2020, and the results of its combined operations and cash flows for the years ended December 31, 2021 and 2020. The combined financial statements were prepared in accordance with accounting principles generally accepted in the United States of America (US GAAP). All intercompany transactions and balances associated with these combined entities are eliminated in these financial statements. The combined financial statements include specifically identified general and administrative costs incurred by the Company, which management believes are appropriate to include to reflect the Company's cost of doing business under SIH's ownership. Use of estimates Preparation of combined financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the combined financial statements and the reported amounts of revenues and expenses during the reporting period. Management uses historical and other pertinent information to determine these estimates. Actual results could differ from those estimates. Cash and cash equivalents The Company considers all highly liquid instruments purchased with an original maturity of three months or less to be cash equivalents. The Company maintains its cash either on deposit in various financial institutions, where deposits may exceed federally insured amounts at times, or in highly rated money market deposit accounts with daily liquidity. Money market deposits consist of short-term securities, such as Treasury bills, certificates of deposit, and commercial paper. Money market deposit accounts are insured by the Federal Deposit Insurance Corporation, up to statutory limits on a per entity, per bank basis. The Company's cash balances exceeded the insured limit by $2,667 and $4,530 at December 31, 2021 and 2020, respectively. Any cash or cash equivalent that is restricted in its use is classified as restricted cash. Cash and cash equivalents are financial instruments that potentially subject the Company to a concentration of credit risk. The Company places its cash and cash equivalents with high credit quality financial institutions.

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Sterling Conveyed Entities NOTES TO COMBINED FINANCIAL STATEMENTS - CONTINUED December 31, 2021 and 2020 (All dollar amounts in thousands unless otherwise noted) 10 Accounts receivable Accounts receivable are also financial instruments that potentially subject the Company to a concentration of credit risk. Accounts receivable are presented on the combined balance sheet net of estimated uncollectible amounts. The Company records an allowance for doubtful accounts in an amount approximating potential anticipated losses, if any, arising from such uncollectible amounts. Individual uncollectible accounts are written off against the allowance when collection of the individual accounts appears doubtful. The Company recorded bad debt expense of $0 and $350 as of December 31, 2021 and 2020, respectively. Inventories The components of inventories include the following as of December 31: 2021 2020 Residue gas and liquids $278 $146 Equipment 2,379 2,551 Total inventories $2,657 $2,697 Inventories, which are comprised of NGLs and condensate held in storage tanks (collectively, liquids) and residue gas for processing and sales commitments, and equipment anticipated to be utilized in the construction of future capital projects, are carried at the lower of weighted-average cost (for residue gas and liquids), cost (for equipment), or market, on a first-in, first-out basis. Other current assets Other current assets are comprised primarily of insurance premiums paid prior to the period for which such premiums attribute insurance coverage to certain assets or personnel, and subscriptions paid annually and amortized monthly. The prepaid insurance premiums and prepaid subscriptions expenses become expenses as they are applied to current periods and expire. Property, plant, and equipment Capitalization, depreciation, and disposals Property, plant, and equipment are reported at historical cost net of accumulated depreciation. Expenditures for maintenance and repairs are charged against operations. Renewals and betterments that are considered to extend the life of the asset are capitalized. Plant and pipeline assets are currently being depreciated on a straight-line basis over 20 years, which represents management's estimate of their useful lives. Construction work in process consists of capital assets purchased by the Company that have not yet been placed into service, and thus have not commenced their useful lives. As of December 31, 2020, the majority of the Company's construction work-in-process assets consisted of gas processing facilities under construction in northeastern Colorado, which were placed into service in 2021. As of December 31, 2021, the majority of the Company's construction work-in-process assets consisted of gas processing facilities under construction in northeastern Colorado, expected to be placed into service in 2022 (see Note 3).

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Sterling Conveyed Entities NOTES TO COMBINED FINANCIAL STATEMENTS - CONTINUED December 31, 2021 and 2020 (All dollar amounts in thousands unless otherwise noted) 11 When assets are placed into service, the Company makes estimates with respect to useful lives (and salvage values where appropriate) that the Company believes are reasonable. However, subsequent events could cause the Company to change its estimates, thus affecting the future calculation of depreciation and amortization expense. Rights-of-way are generally owned in perpetuity from the date of acquisition to a date triggered by an event such as abandonment of the pipeline. For any rights-of-way that expire, costs incurred to renew or extend the terms of the rights-of-way are capitalized. The Company amortizes the fair value assigned to each right- of-way agreement over the shorter of the term of the agreement for those agreements with specific dates or 40 years. The useful lives for the various types of property, plant, equipment, and right-of-way are as follows: Estimated Useful Lives Rights-of-way 38 years Buildings 38 years Water tanks 19 years Pipeline 21 years Plant facilities 20 years Water wells 18 years Pumping stations 8 years Vehicles, equipment and tools 5 years Furniture and fixtures 5 years Computers and software 4 years Leasehold improvements are depreciated over their estimated useful life or the life of the lease, whichever is shorter. Impairments Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. If indicators of impairment to such long-lived assets are present, management performs recoverability testing by identifying asset groups, which represent the lowest level for which identifiable cash flows are largely independent of the cash flows of other groups of assets and liabilities, and comparing the carrying amounts of these asset groups to the sum of the estimated undiscounted future cash flows attributable to them. If the carrying amounts exceed the sum of the undiscounted future cash flows, these asset groups are reduced to fair market value. Fair market value is calculated by summing the future discounted cash flows attributable to these asset groups, using a discount rate management deems to be appropriate. For the years ended December 31, 2021 and 2020, the Company's management identified two asset groups - the SEI Gathering System, inclusive of its natural gas gathering system and processing facilities; and the CWP freshwater transportation pipeline and pumps. For the year ended December 31, 2021 and 2020, no triggering events were present that required the Company's management to evaluate future undiscounted cash flows. Upon such evaluation of future undiscounted cash flows, the Company's management determined that no long-lived assets should be impaired. As a result of such evaluations, the Company recognized no impairment charges for the year ended December 31, 2021 or 2020.

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Sterling Conveyed Entities NOTES TO COMBINED FINANCIAL STATEMENTS - CONTINUED December 31, 2021 and 2020 (All dollar amounts in thousands unless otherwise noted) 12 Goodwill and intangible assets Goodwill is recorded when the purchase price of a business exceeds the fair value of the tangible and separately measurable intangible net assets. Goodwill is evaluated for impairment on an annual basis or when events or circumstances occur, indicating that goodwill might be impaired. The Company had three distinct operating segments in existence in through December 31 of 2021 and in 2020. All of these operating segments - SEI, GEM, and CWP - have their own discrete financial information, and therefore are deemed distinct reporting units for the purposes of evaluating goodwill impairment. Per the guidance of Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) 350-20, at least annually, the Company evaluates whether it is more likely than not that its fair value is less than its carrying amount by assessing relevant macroeconomic, industry and entity-specific events and circumstances. Such assessment is performed by seeking to identify the presence of events and outcomes including those that result in significant decreases, or expectation for significant decreases, in entity market value, cash flows, long-lived asset condition and useful lives and regulatory compliance (Triggering Events). If the Company were to identify a Triggering Event in its assessment, it would then compare the carrying amount of its reporting unit (including goodwill) to the fair value in order to further determine the need, if any, for goodwill impairment. As SEI is the only reporting unit of the three that has recorded goodwill on its balance sheet, it is the only reporting unit that required analysis for goodwill impairment. No triggering events for SEI were noted as of December 31, 2021 or 2020 and thus no impairment recorded in either period. Other intangible assets include customer relationships, customer contracts, water rights and noncompete agreements. Definite life intangible assets are being amortized on a straight-line basis over their estimated useful lives, which range from 5 to 20 years. Additionally, intangible assets are evaluated for impairment whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. If indicators of impairment to such intangible assets are present, management performs recoverability testing by identifying asset groups, which represent the lowest level for which identifiable cash flows are largely independent of the cash flows of other groups of assets and liabilities, and comparing the carrying amounts of these asset groups to the sum of the estimated undiscounted future cash flows attributable to them. If the carrying amounts exceed the sum of the undiscounted future cash flows, these assets are reduced to fair market value. Fair market value is calculated by summing the future discounted cash flows attributable to these assets, using a discount rate management deems to be appropriate. For the year ended December 31, 2021, and 2020, no triggering events were present that required the Company's management to evaluate future undiscounted cash flows. Upon such evaluation of future undiscounted cash flows, the Company's management determined that no long-lived assets should be impaired. As a result of such evaluations, the Company recognized no impairment charges for the year ended December 31, 2021 or 2020. Accrued expenses Accrued liabilities are comprised primarily of property taxes which are paid in the first quarter following the year in which the taxes apply, and capital assets which have been delivered and will be paid for in the month following delivery. The following table provides additional information about the Company's accrued liabilities as of December 31: 2021 2020 Accrued property taxes $1,080 $1,162 Accrued capital expenditures 366 89 Other accruals 1,972 257 Total accrued liabilities $3,418 $1,508

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Sterling Conveyed Entities NOTES TO COMBINED FINANCIAL STATEMENTS - CONTINUED December 31, 2021 and 2020 (All dollar amounts in thousands unless otherwise noted) 13 Revenue recognition The Company gathers raw natural gas (saturated gas) from certain oil and gas production companies and processes the majority of this saturated gas and then sells its byproducts - residue gas, NGLs and condensate - to certain marketing companies. The Company also transports certain customers' NGLs, crude oil and condensate for delivery and sale to certain marketing companies. As well, the Company occasionally sells saturated gas to another gas processing company. For each of these types of agreements, the Company's performance obligations are satisfied as the products are delivered and control is transferred to the customer. Further, the Company charges gathering, transportation, marketing and other fees to the oil and gas production companies from whom it gathers saturated gas. These fees are recorded as reductions to the Company's cost of sales upon the completion of such services. The Company gathers and processes saturated gas from one oil and gas production company under the terms of an agreement that requires such company to supply a minimum monthly volume of saturated gas. When this minimum volume commitment is not met, the Company charges a minimum volume commitment fee that corresponds to the volumetric shortfall and applicable monthly residue gas and NGL prices. Such minimum volume commitment fees resulted in reductions to the Company's cost of sales of $7,249 and $4,396 for 2021 and 2020, respectively. Finally, the Company sells and transports fresh water through pipelines to certain oil and gas production companies. For these arrangements, the Company's performance obligation is satisfied as the product is delivered and control is transferred to the customer. Payment terms and conditions in the contracts that govern the Company's sales generally do not exceed 30 days and do not include a financing component. The Company considers shipping and handling performed by itself or by its contracted third parties as fulfillment activities. The Company is generally not obligated to collect taxes on certain revenue transactions to be remitted to governmental authorities. Should such taxes, which may include sales, use, value-added and some excise taxes be collected on revenue transactions, these taxes are not included in the transaction price and are, therefore, excluded from revenues. With respect to residue gas, certain marketing companies pay the Company a predetermined set price multiplied by a volume of residue gas that is delivered into residue gas transportation pipelines from the tailgates of the Company's plants. With respect to NGLs and condensate, certain marketing companies pay the Company for a predetermined percentage of proceeds, less transportation and fractionation fees, for NGLs and condensate that are either delivered into an NGL transportation pipeline or trucked away from the tailgates of the Company's plants. With respect to saturated gas, a certain natural gas processing company pays the Company a predetermined percentage of proceeds that the processing company receives from marketing companies for its sales of the Company's pro rata portion of residue gas and NGLs in the same period that the residue gas and NGLs are sold. Certain sale, purchase, and transportation contracts provide for the pricing of residue gas, NGLs, condensate and saturated gas to vary depending on the price of the Colorado Interstate Gas Pipeline Index (CIG) and the Cheyenne Hub, or NGL and condensate prices at Conway, Kansas (the Conway Index) or oil prices at the New York Mercantile Exchange (NYMEX) West Texas Intermediate (WTI) Index. These variable pricing features are considered to be embedded derivatives; however, they have not been separated and recorded at fair value on the basis that all the criteria necessary for bifurcation have not been met. With respect to fresh water sales, the Company is paid by certain oil and gas production companies at a predetermined set rate multiplied by the volume of fresh water sold from its water wells to these certain oil and gas production companies' designated delivery points. Historically, one of the Company's contracts with an oil and gas production company required a minimum volume of fresh water to be sold by the

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Sterling Conveyed Entities NOTES TO COMBINED FINANCIAL STATEMENTS - CONTINUED December 31, 2021 and 2020 (All dollar amounts in thousands unless otherwise noted) 14 Company, or the sale of such minimum volumes were to have been paid to the Company by this oil and gas production company. Any payment received by the Company for volumes in excess of water delivered was recorded as deferred revenue and was recognized upon delivery during any contractually driven make- up period, which was the life of the contract when not explicitly stated. With respect to fresh water transportation, the Company is paid by certain oil and gas production companies at a predetermined set rate multiplied by the volume of fresh water transported from a third-party provider of water to these certain oil and gas production companies' designated delivery points. With respect to gathering, transportation, marketing and other fees, the Company is paid by certain oil and gas production companies to charge to those production companies at a set rate multiplied by the volume of gas or liquid products for which the respective gathering, transportation, marketing or other services are applied. The Company entered into one contract to sell fresh water to a certain oil and gas production company in 2019, whereby the oil and gas production company paid the Company in advance of the delivery of such water sales. Accordingly, the Company recognized this payment in excess of revenue as a contract liability and recorded it as a deferred revenue on its combined statement of financial position and subsequently recognized only the portion of such payment that was associated with the volume of water delivered to the oil and gas production company as revenue. During 2020, the Company incurred no deferred revenue and recognized $1,114 of revenue associated with this contract. As of December 31, 2021 and 2020, the Company had $0 of deferred revenue associated with this contract remaining Capitalized general and administrative expenses All material costs of designing, acquiring, installing and improving plant, property and equipment are capitalized. General and administrative expenses, which consist primarily of salaries, benefits, office expenses and professional service fees, are capitalized in proportion to the extent that general and administrative personnel costs are directly associated with the design, acquisition, installation and improvement of such capital assets. Income taxes SEI, CWP and GEM are treated as partnerships and, therefore, are not subject to federal or state income taxes. Accordingly, no recognition has been given to federal or state taxes in the Company's combined financial statements and no deferred income tax asset or liability provision has been made in the Company's combined financial statements. There are no uncertain tax positions that were material to the Company's results of operations or financial position. Comprehensive income (loss) Comprehensive income (loss) is defined as all changes in member's equity, exclusive of transactions with members. All comprehensive income (loss) relates to net income (loss) for the periods presented. Fair value measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date in the principal or most advantageous market. Fair value is a market-based measurement that is determined based on inputs, which refer broadly to assumptions that market participants' use in pricing assets or liabilities. These inputs can be readily observable, market-corroborated, or generally observable. The Company has made certain assumptions it believes market participants would use in pricing assets or liabilities, including assumptions about risk, and the risks inherent in the inputs to valuation techniques.

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Sterling Conveyed Entities NOTES TO COMBINED FINANCIAL STATEMENTS - CONTINUED December 31, 2021 and 2020 (All dollar amounts in thousands unless otherwise noted) 15 Credit risk of the Company and its counterparties is incorporated in the valuation of assets and liabilities through the use of credit reserves, the impact of which was immaterial at December 31, 2021 and 2020. Management of the Company believes it uses valuation techniques that maximize the use of observable market-based inputs and minimize the use of unobservable inputs. A fair value hierarchy has been established that prioritizes the inputs to valuation techniques used to measure fair value in three broad levels. The fair value hierarchy gives the highest priority to quoted prices (unadjusted) in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). In some cases, the inputs used to measure fair value might fall in different levels of the fair value hierarchy. All assets and liabilities are required to be classified in their entirety based on the lowest level of input that is significant to the fair value measurement in its entirety. Assessing the significance of a particular input may require judgment considering factors specific to the asset or liability, and may affect the valuation. The Company classifies fair value balances based on the fair value hierarchy defined as follows: Level 1 - Consists of unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access as of the reporting date; Level 2 - Consists of inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data; and Level 3 - Consists of unobservable inputs for assets or liabilities whose fair value is estimated based on internally developed models or methodologies using inputs that are generally less readily observable and supported by little, if any, market activity at the measurement date. Unobservable inputs are developed based on the best available information and are subject to cost benefit constraints. The carrying amounts of the Company's financial instruments, including cash, short-term investments, and trade accounts receivable and payable, approximate their fair values due to the short-term nature of these instruments as of December 31, 2021 and 2020. The carrying amount of the Company's short-term debt approximates its fair value due to the fact that such debt is comprised of a series of draws that individually are for periods of less than one year, but can be refinanced with other renewals or extensions (See Note 7). Due to the observable short-term time elements and low interest rates associated with cash, cash equivalents, accounts receivable and draws on the long-term debt, all such financial instruments' measurements are classified with Level 2 inputs. As discussed in Note 7, Commitments and Contingencies, the Company has recorded a Deferred earn-out liability, which is remeasured each period. As of December 31, 2021 and December 31, 2020 the estimated fair value of such liability was $5,900 and $5,500, respectively. The fair value is estimated using discounted cash flow techniques based on estimated future fresh water deliveries and appropriate discount rates. Given the unobservable nature of the inputs, the fair value measurement of the Deferred earn-out is deemed to use Level 3 inputs. The Company recognized a reduction of the earn-out liability of $400 for the year ended December 31, 2021 by making obligatory payments resulting from the earn-out obligation. The Company recognized an increase in the earn-out liability of $1,100 for the year ended December 31, 2020. COVID-19 On March 11, 2020, the World Health Organization declared the outbreak of an infectious respiratory disease caused by a new coronavirus, known as COVID-19 ("COVID"). In response, most U.S. states have implemented measures to combat the outbreak of COVID and such responses have impacted operations

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Sterling Conveyed Entities NOTES TO COMBINED FINANCIAL STATEMENTS - CONTINUED December 31, 2021 and 2020 (All dollar amounts in thousands unless otherwise noted) 16 of U.S. businesses. As of the date of the issuance of the Company's December 31, 2020 combined financial statements, the Company's operations have been impacted by COVID and the Company continues to monitor the situation, but no impairments to the Company's accounts were recorded, as no triggering events or material changes in operational circumstances resulting from COVID had occurred. However, due to uncertainty surrounding COVID, management's judgment regarding this could change in the future. In addition, while the Company's results of operations, cash flows, and financial condition could be impacted by COVID, the extent of the impact cannot be reasonably estimated at this time. NOTE 3 - PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment consist of the following at December 31: 2021 2020 Plant facilities and buildings $156,763 $154,587 Pipeline 76,082 74,850 Rights-of-way 8,529 8,529 Water wells 6,029 6,029 Vehicles, equipment and tools 2,640 2,544 Pumping stations 1,143 1,143 Computers and software 492 615 Water tanks 569 569 Leasehold improvements 284 284 Land 262 262 Furniture and fixtures 46 111 Construction work in process 4,143 3,134 Total property, plant and equipment 256,982 252,657 Less accumulated depreciation (75,278) (63,016) Net property, plant and equipment, net $181,704 $189,641 Depreciation expense for the years ended December 31, 2021 and 2020 was $12,636 and $12,448, respectively.

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Sterling Conveyed Entities NOTES TO COMBINED FINANCIAL STATEMENTS - CONTINUED December 31, 2021 and 2020 (All dollar amounts in thousands unless otherwise noted) 17 NOTE 4 - GOODWILL AND OTHER INTANGIBLE ASSETS As of December 31, 2021 and 2020, the Company had goodwill of $1,484 recorded within the SEI reporting unit. As discussed above in Note 2, the Company's goodwill is evaluated for impairment annually at year- end or when events or circumstances occur, indicating that goodwill might be impaired. In performing the goodwill impairment analysis, the Company assessed relevant macroeconomic, industry and entity-specific events and circumstances, seeking to identify the presence of Triggering Events and determined that no Triggering Events existed as of December 31, 2021 and 2020. Other intangible assets consisted of the following at: 2021 2020 Water rights $8,436 $8,436 Noncompete agreement (5 year lives) 5,610 5,610 Customer relationship (5 - 20 year lives) 4,485 4,485 Customer contracts (1 - 20 year lives) 1,495 1,495 Total other intangible assets 20,026 20,026 Less accumulated amortization (9,510) (8,141) Other intangible assets, net 10,516 11,885 Net Intangible assets $11,407 $12,924 Amortization expense for the years ended December 31, 2021 and 2020 was $1,369 and $1,476, respectively. Estimated future amortization expense related to intangible assets held as of December 31, 2021, is as follows: Years ending December 31, 2022 $217 2023 217 2024 217 2025 217 2026 217 Thereafter 995 NOTE 5 - EMPLOYEE BENEFIT PLAN The Company sponsors a 401(k) Savings Plan (the Plan). The Plan is a defined contribution plan in which all eligible salaried and hourly employees may participate. Under the Plan, the Company matches 100% of all participants' contributions up to 6% of their respective annual compensation. For the years ended December 31, 2021 and 2020, the Company's matching contributions to the Plan were $360 and $265, respectively.

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Sterling Conveyed Entities NOTES TO COMBINED FINANCIAL STATEMENTS - CONTINUED December 31, 2021 and 2020 (All dollar amounts in thousands unless otherwise noted) 18 NOTE 6 - MAJOR CUSTOMERS During the year ended December 31, 2021, five customers comprised approximately 97% of the Company's revenues (two customer comprised approximately 42% and 32%, respectively, of the Company's revenues). During the year ended December 31, 2020, four customers comprised approximately 96% of the Company's revenues (two customer comprised approximately 53% and 28%, respectively, of the Company's revenues). The Company's customers produce crude oil and transport and market processed natural gas, NGLs, and condensate which is gathered and processed by the Company from the Denver- Julesburg (DJ) basin, which encompasses the Niobrara shale formation in northeast Colorado. NOTE 7 - COMMITMENTS AND CONTINGENCIES The Company had one $1,500 letter of credit (LOC) posted on its behalf by SIH to support operations as of December 31, 2021, and one $1,000 LOC posted on its behalf by SIH to support operations as of December 31, 2020. The $1,000 LOC expired March 31, 2021. For the years ended December 31, 2021 and 2020, these LOCs had not been drawn upon. In 2016, the Company acquired certain assets to enable CWP to supply fresh water to oil and gas production companies through its Centennial Water System. Terms and conditions of this acquisition require the Company to pay the entity from which it acquired such assets (the "Seller") a percentage of future revenues derived from the supply of fresh water to oil and gas production companies. As of December 31, 2021 and 2020, the fair market value of the Company's obligation (the "Deferred earn-out") to the Seller was $5,900 and $5,500, respectively. The term of Deferred earn-out is finite and contingent upon the amount of fresh water supply revenue earned by the Company in future years. Prior to and during 2021 and 2020, the Company entered into multiple non-cancelable operating leases of compression equipment, gas processing equipment, gas treating equipment, office printing and copying equipment for which payment obligations exist through 2026. Also, in 2012, the Company entered into a non-cancelable operating lease of office space for which payment obligations existed through 2018. This lease was amended in 2014 to increase the amount of leased office space and the corresponding payments but it did not extend the term of the payment obligations. This lease for operating space was amended and extended in 2018 and again in 2021 and such amendment imposed the Company with payment obligations through September 24, 2021. Also, in 2021, the Company entered into a non-cancelable operating sublease of office space for which payment obligations exist through June 30, 2022. Additionally, in 2017, the Company entered into a non-cancelable firm transportation agreement for takeaway capacity of its processed residue gas for which payment obligations existed through October 31, 2018. In September of 2018, this agreement was extended, thereby obligating the Company to make payments through October 31, 2020. Lease expense was $2,414 and $2,897 for 2021 and 2020, respectively. The office lease commitment expired on September 24, 2021. The office sublease commitment expires on June 30, 2022. Remaining terms for equipment leases range from six months to five years. From time to time, the Company has been and may be involved in legal proceedings arising from the normal course of its business. The Company is not aware of any pending or threatened litigation against the Company that it believes could have a material adverse effect on its business, operating results, financial condition or cash flows.

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Sterling Conveyed Entities NOTES TO COMBINED FINANCIAL STATEMENTS - CONTINUED December 31, 2021 and 2020 (All dollar amounts in thousands unless otherwise noted) 19 The table below summarizes the Company's future payment commitments under noncancelable operating and leases and firm transportation agreements as of December 31, 2021: Years ending December 31, 2022 $1,127 2023 789 2024 709 2025 709 2026 177 Thereafter - Total $3,511 NOTE 8 - RELATED-PARTY TRANSACTIONS The Company had no related-party transactions in 2021 or 2020. NOTE 9 - SUBSEQUENT EVENTS The Company evaluated its December 31, 2021 combined financial statements for subsequent events through February 14, 2023, which represents the date that the combined financial statements were available to be issued. On December 1, 2022, SIH sold 100% of its interest in each of the Conveyed Entities (SEI, CWP and GEM) of the Company to Summit Midstream Partners, LP (NYSE: SMLP). No subsequent events have occurred that, except as previously disclosed, would require recognition or disclosure in the combined financial statements or the notes thereto.

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## Exhibit 99.6

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unaudited Condensed Combined Financial Statements Sterling Conveyed Entities As of September 30, 2022 and December 31, 2021, and for the Nine Months Ended September 30, 2022 and 2021

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2022 2021 ASSETS Current assets Cash 1,939$3,275$ Accounts receivable, net of allowance for doubtful accounts 14,598 8,607 Inventories 1,939 2,657 Other current assets 1,067 584 Total current assets 19,543 15,123 Noncurrent assets Property, plant, and equipment 269,069 256,982 Accumulated depreciation (84,658) (75,278) Total property, plant and equipment, net 184,411 181,704 Other intangible assets, net 10,354 10,516 Goodwill 1,484 1,484 Other long-term assets 2 2 Total assets 215,794$208,829$ LIABILITIES AND MEMBER'S EQUITY Current liabilities Accounts payable 10,167$5,436$ Accrued expenses 3,576 3,418 Short-term liabilities - 26 Total current liabilities 13,743 8,880 Noncurrent liabilities Deferred Earn Out 4,745 5,900 Equity Member's equity 197,306 194,049 Total liabilities and member's equity 215,794$208,829$ Sterling Conveyed Entities UNAUDITED CONDENSED COMBINED STATEMENTS OF FINANCIAL POSITION September 30, 2022 and December 31, 2021 (in thousands) The accompanying notes are an integral part of these unaudited combined financial statements. 5

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2022 2021 Operating revenues: Residue gas sales 50,175$22,360$ Natural gas liquid sales 35,434 24,976 Third party product sales 14,706 12,697 Condensate sales 3,733 2,904 Water sales 7,971 6,206 Total operating revenues 112,019 69,143 Operating costs and expenses: Natural gas product purchases 74,957 38,105 Water royalties and costs 1,826 869 Operating and maintenance costs 11,597 9,185 Depreciation and amortization expense 9,597 10,575 General and administrative expense 3,512 4,000 Total operating costs and expenses 101,489 62,734 Operating income 10,530 6,409 Other (loss) income (639) 168 Interest income 1 23 Total other (expense) / income (638) 191 NET INCOME 9,892$6,600$ Sterling Conveyed Entities UNAUDITED CONDENSED COMBINED STATEMENTS OF OPERATIONS Nine months ended September 30, (in thousands) The accompanying notes are an integral part of these unaudited combined financial statements. 6

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Member's Equity Balance at December 31, 2020 204,268$ Distributions to Parent (SIH) (11,740) Net income 6,600 Balance at September 30, 2021 199,128 Balance at December 31, 2021 194,049 Distributions to Parent (SIH) (6,635) Net income 9,892 Balance at September 30, 2022 197,306$ Sterling Conveyed Entities UNAUDITED CONDENSED COMBINED STATEMENTS OF MEMBER'S EQUITY Nine months ended September 30, 2022 and September 30, 2021 (in thousands) The accompanying notes are an integral part of these unaudited combined financial statements. 7

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2022 2021 Operating activities: Net income 9,892$6,600$ Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 9,597 10,575 Gain on deferred earn-out (1,155) (935) Loss / (gain) on sale of assets 720 (25) Changes in operating assets and liabilities: Accounts receivable (5,991) (6,134) Other assets (483) (86) Inventories (15) (101) Accounts payable 4,731 1,502 Accrued expenses (443) (132) Net cash provided by operating activities 16,853 11,264 Investing activities: Additions of property, plant, and equipment (11,528) (2,922) Proceeds on sale of assets - 10 Net cash used in investing activities (11,528) (2,912) Financing activities: Distributions to Parent (SIH) (6,635) (11,740) Installment purchases/(repayment) (26) (48) Net cash used in financing activities (6,661) (11,788) NET DECREASE IN CASH AND CASH EQUIVALENTS (1,336) (3,436) Cash and cash equivalents at beginning of period 3,275 5,280 Cash and cash equivalents at end of period 1,939$1,844$ Supplemental disclosures of cash flow information: Non-cash transactions Equipment inventory 733$171$ Accrued liabilities 601$(14)$ Sterling Conveyed Entities UNAUDITED CONDENSED COMBINED STATEMENTS OF CASH FLOWS Nine months ended September 30, (in thousands) The accompanying notes are an integral part of these unaudited combined financial statements. 8

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Sterling Conveyed Entities NOTES TO UNAUDITED CONDENSED COMBINED FINANCIAL STATEMENTS September 30, 2022 and 2021 (All dollar amounts in thousands unless otherwise noted) 9 NOTE 1 - ORGANIZATION AND NATURE OF ACTIVITIES The unaudited combined financial statements ("combined financial statements") include the financial position and operations of Sterling Energy Investments LLC (SEI), Centennial Water Pipelines LLC (CWP) and Grasslands Energy Marketing LLC (GEM) (together, the Company) on a combined basis. Each of these entities, SEI, CWP and GEM, are wholly-owned subsidiaries of Sterling Investment Holdings LLC (SIH). SEI, a Colorado corporation, was formed by SIH in 2011. CWP and GEM are both Delaware LLCs and were formed in 2013. SEI provides natural gas gathering and processing infrastructure and related services through its gathering system, the Centennial System, serving oil and gas production companies in the Denver-Julesburg (DJ)/Niobrara basin in northeast Colorado. CWP supplies and provides transportation of fresh water to oil and gas production companies in the DJ/Niobrara basin through its Centennial Water System. GEM provides natural gas liquids (NGLs) transportation and marketing services on behalf of SEI and oil and gas production companies in the DJ/Niobrara basin. NOTE 2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation The combined financial statements referred to above contain the financial position of the Company as of September 30, 2022 and December 31, 2021, and the results of its combined operations and cash flows for the nine months ended September 30, 2022 and 2021. The combined financial statements were prepared in accordance with accounting principles generally accepted in the United States of America (US GAAP). All intercompany transactions and balances associated with these combined entities are eliminated in these financial statements. The combined financial statements include specifically identified general and administrative costs incurred by the Company, which management believes are appropriate to include to reflect the Company's cost of doing business under SIH's ownership. The accompanying combined financial statements have not been audited by the Company's independent certified public accountants, except that the combined balance sheet as of December 31, 2021 is derived from the audited combined financial statements. These interim combined financial statements should be read together with the Company's audited combined financial statements as of and for the year ended December 31, 2021. Use of Estimates Preparation of combined financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the combined financial statements and the reported amounts of revenues and expenses during the reporting period. Management uses historical and other pertinent information to determine these estimates. Actual results could differ from those estimates. Cash and Cash Equivalents The Company considers all highly liquid instruments purchased with an original maturity of three months or less to be cash equivalents. The Company maintains its cash either on deposit in various financial institutions, where deposits may exceed federally insured amounts at times, or in highly rated money market deposit accounts with daily liquidity. Money market deposits consist of short-term securities, such as Treasury bills, certificates of deposit, and commercial paper. Money market deposit accounts are insured by the Federal Deposit Insurance Corporation, up to statutory limits on a per entity, per bank basis. The Company's cash balances exceeded the insured limit by $1,617 and $2,667 at September 30, 2022 and December 31, 2021, respectively. Any cash or cash equivalent that is restricted in its use is classified as restricted cash. Cash and cash equivalents are financial instruments that potentially subject the Company

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Sterling Conveyed Entities NOTES TO UNAUDITED CONDENSED COMBINED FINANCIAL STATEMENTS - CONTINUED September 30, 2022 and 2021 (All dollar amounts in thousands unless otherwise noted) 10 to a concentration of credit risk. The Company places its cash and cash equivalents with high credit quality financial institutions. Accounts Receivable Accounts receivable are also financial instruments that potentially subject the Company to a concentration of credit risk. Accounts receivable are presented on the balance sheet net of estimated uncollectible amounts. The Company records an allowance for doubtful accounts in an amount approximating potential anticipated losses, if any, arising from such uncollectible amounts. Individual uncollectible accounts are written off against the allowance when collection of the individual accounts appears doubtful. The Company had no amounts recognized as an allowance for doubtful accounts as of September 30, 2022 and December 31, 2021. Inventories The components of inventories include the following as of: September 30, 2022 December 31, 2021 Residue gas and liquids $293 $278 Equipment 1,646 2,379 Total inventories $1,939 $2,657 Inventories, which are comprised of NGLs and condensate held in storage tanks (collectively, liquids) and residue gas for processing and sales commitments, and equipment anticipated to be utilized in the construction of future capital projects, are carried at the lower of weighted-average cost (for residue gas and liquids), cost (for equipment), or net realizable value, on a first-in, first-out basis. Other Current Assets Other current assets are comprised primarily of insurance premiums paid prior to the period for which such premiums attribute insurance coverage to certain assets or personnel, and subscriptions paid annually and amortized monthly. The prepaid insurance premiums and prepaid subscriptions expenses become expenses as they are applied to current periods and expire. Property, Plant, and Equipment Capitalization, Depreciation, and Disposals Property, plant, and equipment are reported at historical cost net of accumulated depreciation. Expenditures for maintenance and repairs are charged against operations. Renewals and betterments that are considered to extend the life of the asset are capitalized. Plant and pipeline assets are currently being depreciated on a straight-line basis over 20 years, which represents management's estimate of their useful lives. Construction work in process consists of capital assets purchased by the Company that have not yet been placed into service, and thus have not commenced their useful lives. As of December 31, 2021, the majority of the Company's construction work-in-process assets consisted of gas processing facilities under construction in northeastern Colorado, which were placed into service in 2022. As of September 30, 2022,

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Sterling Conveyed Entities NOTES TO UNAUDITED CONDENSED COMBINED FINANCIAL STATEMENTS - CONTINUED September 30, 2022 and 2021 (All dollar amounts in thousands unless otherwise noted) 11 the majority of the Company's construction work-in-process assets consisted of gas processing facilities under construction in northeastern Colorado, expected to be placed into service in 2022 (see Note 3). When assets are placed into service, the Company makes estimates with respect to useful lives (and salvage values where appropriate) that the Company believes are reasonable. However, subsequent events could cause the Company to change its estimates, thus affecting the future calculation of depreciation and amortization expense. Rights-of-way are generally owned in perpetuity from the date of acquisition to a date triggered by an event such as abandonment of the pipeline. For any rights-of-way that expire, costs incurred to renew or extend the terms of the rights-of-way are capitalized. The Company amortizes the fair value assigned to each right- of-way agreement over the shorter of the term of the agreement for those agreements with specific dates or 40 years. The useful lives for the various types of property, plant, equipment, and right-of-way are as follows: Estimated Useful Lives Rights-of-way 38 years Buildings 38 years Water tanks 19 years Pipeline 21 years Plant facilities 20 years Water wells 18 years Pumping stations 8 years Vehicles, equipment and tools 5 years Furniture and fixtures 5 years Computers and software 4 years Leasehold improvements are depreciated over their estimated useful life or the life of the lease, whichever is shorter. Impairments Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. If indicators of impairment to such long-lived assets are present, management performs recoverability testing by identifying asset groups, which represent the lowest level for which identifiable cash flows are largely independent of the cash flows of other groups of assets and liabilities, and comparing the carrying amounts of these asset groups to the sum of the estimated undiscounted future cash flows attributable to them. If the carrying amounts exceed the sum of the undiscounted future cash flows, these asset groups are reduced to fair market value. Fair market value is calculated by summing the future discounted cash flows attributable to these asset groups, using a discount rate management deems to be appropriate. For the nine months ended September 30, 2022 and 2021, the Company's management identified two asset groups - the SEI Gathering System, inclusive of its natural gas gathering system and processing facilities; and the CWP freshwater transportation pipeline and pumps. For the nine months ended September 30, 2022 and 2021, no triggering events were present that required the Company's management to evaluate future undiscounted cash flows. Upon such evaluation of future undiscounted cash flows, the Company's management determined that no long-lived assets should be impaired. As a result of such evaluations, the Company recognized no impairment charges for the nine months ended September 30, 2022 or 2021, respectively.

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Sterling Conveyed Entities NOTES TO UNAUDITED CONDENSED COMBINED FINANCIAL STATEMENTS - CONTINUED September 30, 2022 and 2021 (All dollar amounts in thousands unless otherwise noted) 12 Goodwill and Intangible Assets Goodwill is recorded when the purchase price of a business exceeds the fair value of the tangible and separately measurable intangible net assets. Goodwill is evaluated for impairment on an annual basis or when events or circumstances occur, indicating that goodwill might be impaired. The Company had three distinct operating segments in existence in through September 30 of 2022 and in 2021. All of these operating segments - SEI, GEM, and CWP - have their own discrete financial information, and therefore are deemed distinct reporting units for the purposes of evaluating goodwill impairment. Per the guidance of Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) 350-20, at least annually, the Company evaluates whether it is more likely than not that its fair value is less than its carrying amount by assessing relevant macroeconomic, industry and entity-specific events and circumstances. Such assessment is performed by seeking to identify the presence of events and outcomes including those that result in significant decreases, or expectation for significant decreases, in entity market value, cash flows, long-lived asset condition and useful lives and regulatory compliance (Triggering Events). If the Company were to identify a Triggering Event in its assessment, it would then compare the carrying amount of its reporting unit (including goodwill) to the fair value in order to further determine the need, if any, for goodwill impairment. As SEI is the only reporting unit of the three that has recorded goodwill on its balance sheet, it is the only reporting unit that required analysis for goodwill impairment. No triggering events for SEI were noted as of September 30, 2022 or 2021 and thus no impairment recorded in either period. Other intangible assets include customer relationships, customer contracts, water rights and noncompete agreements. Definite life intangible assets are being amortized on a straight-line basis over their estimated useful lives, which range from 5 to 20 years. Additionally, intangible assets are evaluated for impairment whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. If indicators of impairment to such intangible assets are present, management performs recoverability testing by identifying asset groups, which represent the lowest level for which identifiable cash flows are largely independent of the cash flows of other groups of assets and liabilities, and comparing the carrying amounts of these asset groups to the sum of the estimated undiscounted future cash flows attributable to them. If the carrying amounts exceed the sum of the undiscounted future cash flows, these assets are reduced to fair market value. Fair market value is calculated by summing the future discounted cash flows attributable to these assets, using a discount rate management deems to be appropriate. For the nine months ended September 30, 2022 and 2021, no triggering events were present that required the Company's management to evaluate future undiscounted cash flows. Upon such evaluation of future undiscounted cash flows, the Company's management determined that no long-lived assets should be impaired. As a result of such evaluations, the Company recognized no impairment charges for the nine months ended September 30, 2022 and 2021.

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Sterling Conveyed Entities NOTES TO UNAUDITED CONDENSED COMBINED FINANCIAL STATEMENTS - CONTINUED September 30, 2022 and 2021 (All dollar amounts in thousands unless otherwise noted) 13 Accrued Expenses Accrued liabilities are comprised primarily of property taxes which are paid in the first quarter following the year in which the taxes apply, and capital assets which have been delivered and will be paid for in the month following delivery. The following table provides additional information about the Company's accrued liabilities as of: September 30, 2022 December 31, 2021 Accrued property taxes $814 $1,080 Accrued capital expenditures 967 366 Other accruals 1,795 1,972 Total accrued liabilities $3,576 $3,418 Revenue Recognition The Company gathers raw natural gas (saturated gas) from certain oil and gas production companies and processes the majority of this saturated gas and then sells its byproducts - residue gas, NGLs and condensate – to certain marketing companies. The Company also transports certain customers' NGLs, crude oil and condensate for delivery and sale to certain marketing companies. As well, the Company occasionally sells saturated gas to another gas processing company. For each of these types of agreements, the Company's performance obligations are satisfied as the products are delivered and control is transferred to the customer. Further, the Company charges gathering, transportation, marketing and other fees to the oil and gas production companies from whom it gathers saturated gas. These fees are recorded as reductions to the Company's cost of sales upon the completion of such services. The Company gathers and processes saturated gas from one oil and gas production company under the terms of an agreement that requires such company to supply a minimum monthly volume of saturated gas. When this minimum volume commitment is not met, the Company charges a minimum volume commitment fee that corresponds to the volumetric shortfall and applicable monthly residue gas and NGL prices. Such minimum volume commitment fees resulted in reductions to the Company's cost of sales of $1,502 and $6,807 for the nine months ended September 30, 2022 and 2021, respectively. Finally, the Company sells and transports fresh water through pipelines to certain oil and gas production companies. For these arrangements, the Company's performance obligation is satisfied as the product is delivered and control is transferred to the customer. Payment terms and conditions in the contracts that govern the Company's sales generally do not exceed 30 days and do not include a financing component. The company considers shipping and handling performed by itself or by its contracted third parties as fulfillment activities. The company is generally not obligated to collect taxes on certain revenue transactions to be remitted to governmental authorities. Should such taxes, which may include sales, use, value-added and some excise taxes be collected on revenue transactions, these taxes are not included in the transaction price and are, therefore, excluded from revenues. With respect to residue gas, certain marketing companies pay the Company a predetermined set price multiplied by a volume of residue gas that is delivered into residue gas transportation pipelines from the tailgates of the Company's plants. With respect to NGLs and condensate, certain marketing companies pay the Company for a predetermined percentage of proceeds, less transportation and fractionation fees, for NGLs and condensate that are either

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Sterling Conveyed Entities NOTES TO UNAUDITED CONDENSED COMBINED FINANCIAL STATEMENTS - CONTINUED September 30, 2022 and 2021 (All dollar amounts in thousands unless otherwise noted) 14 delivered into an NGL transportation pipeline or trucked away from the tailgates of the Company's plants. With respect to saturated gas, a certain natural gas processing company pays the Company a predetermined percentage of proceeds that the processing company receives from marketing companies for its sales of the Company's pro rata portion of residue gas and NGLs in the same period that the residue gas and NGLs are sold. Certain sale, purchase, and transportation contracts provide for the pricing of residue gas, NGLs, condensate and saturated gas to vary depending on the price of the Colorado Interstate Gas Pipeline Index (CIG) and the Cheyenne Hub, or NGL and condensate prices at Conway, Kansas (the Conway Index) or oil prices at the New York Mercantile Exchange (NYMEX) West Texas Intermediate (WTI) Index. Each delivery of product represents a separate performance obligation, therefore future volumes delivered are wholly unsatisfied and disclosure of the transaction price allocated to remaining performance obligations is not required. With respect to fresh water sales, the Company is paid by certain oil and gas production companies at a predetermined set rate multiplied by the volume of fresh water sold from its water wells to these certain oil and gas production companies' designated delivery points. Historically, one of the Company's contracts with an oil and gas production company required a minimum volume of fresh water to be sold by the Company, or the sale of such minimum volumes were to have been paid to the Company by this oil and gas production company. Any payment received by the Company for volumes in excess of water delivered was recorded as deferred revenue and was recognized upon delivery during any contractually driven make- up period, which was the life of the contract when not explicitly stated. With respect to fresh water transportation, the Company is paid by certain oil and gas production companies at a predetermined set rate multiplied by the volume of fresh water transported from a third-party provider of water to these certain oil and gas production companies' designated delivery points. With respect to gathering, transportation, marketing and other fees, the Company is paid by certain oil and gas production companies to charge to those production companies at a set rate multiplied by the volume of gas or liquid products for which the respective gathering, transportation, marketing or other services are applied. Capitalized General and Administrative Expenses All material costs of designing, acquiring, installing and improving plant, property and equipment are capitalized. General and administrative expenses, which consist primarily of salaries, benefits, office expenses and professional service fees, are capitalized in proportion to the extent that general and administrative personnel costs are directly associated with the design, acquisition, installation and improvement of such capital assets. Income Taxes SEI, CWP and GEM are treated as partnerships and therefore are not subject to federal or state income taxes. Accordingly, no recognition has been given to federal or state taxes in the Company's combined financial statements and no deferred income tax asset or liability provision has been made in the Company's combined financial statements. There are no uncertain tax positions that were material to the Company's results of operations or financial position. Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date in the principal or most

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Sterling Conveyed Entities NOTES TO UNAUDITED CONDENSED COMBINED FINANCIAL STATEMENTS - CONTINUED September 30, 2022 and 2021 (All dollar amounts in thousands unless otherwise noted) 15 advantageous market. Fair value is a market-based measurement that is determined based on inputs, which refer broadly to assumptions that market participants' use in pricing assets or liabilities. These inputs can be readily observable, market-corroborated, or generally observable. The Company has made certain assumptions it believes market participants would use in pricing assets or liabilities, including assumptions about risk, and the risks inherent in the inputs to valuation techniques. Credit risk of the Company and its counterparties is incorporated in the valuation of assets and liabilities through the use of credit reserves, the impact of which was immaterial at September 30, 2022 and December 31, 2021. Management of the Company believes it uses valuation techniques that maximize the use of observable market-based inputs and minimize the use of unobservable inputs. A fair value hierarchy has been established that prioritizes the inputs to valuation techniques used to measure fair value in three broad levels. The fair value hierarchy gives the highest priority to quoted prices (unadjusted) in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). In some cases, the inputs used to measure fair value might fall in different levels of the fair value hierarchy. All assets and liabilities are required to be classified in their entirety based on the lowest level of input that is significant to the fair value measurement in its entirety. Assessing the significance of a particular input may require judgment considering factors specific to the asset or liability, and may affect the valuation. The Company classifies fair value balances based on the fair value hierarchy defined as follows: Level 1 - Consists of unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access as of the reporting date; Level 2 - Consists of inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data; and Level 3 - Consists of unobservable inputs for assets or liabilities whose fair value is estimated based on internally developed models or methodologies using inputs that are generally less readily observable and supported by little, if any, market activity at the measurement date. Unobservable inputs are developed based on the best available information and are subject to cost benefit constraints. The carrying amounts of the Company's financial instruments, including cash, short-term investments, and trade accounts receivable and payable, approximate their fair values due to the short-term nature of these instruments as of September 30, 2022 and December 31, 2021. The carrying amount of the Company's short-term debt approximates its fair value due to the fact that such debt is comprised of a series of draws that individually are for periods of less than one year, but can be refinanced with other renewals or extensions (See Note 5). Due to the observable short-term time elements and low interest rates associated with cash, cash equivalents, accounts receivable and draws on the long-term debt, all such financial instruments' measurements are classified with Level 2 inputs. As discussed in Note 5, Commitments and Contingencies, the Company has recorded a Deferred earn-out liability, which is remeasured each period. As of September 30, 2022 and December 31, 2021 the estimated fair value of such liability was $4,745 and $5,900, respectively. The fair value is estimated using discounted cash flow techniques based on estimated future fresh water deliveries and appropriate discount rates. Given the unobservable nature of the inputs, the fair value measurement of the Deferred earn-out is deemed to use Level 3 inputs. The Company recognized a reduction of the earn-out liability of $1,155 and $935 for the periods ended September 30, 2022 and 2021, respectively, by making obligatory payments resulting from the earn-out obligation.

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Sterling Conveyed Entities NOTES TO UNAUDITED CONDENSED COMBINED FINANCIAL STATEMENTS - CONTINUED September 30, 2022 and 2021 (All dollar amounts in thousands unless otherwise noted) 16 COVID-19 On March 11, 2020, the World Health Organization declared the outbreak of an infectious respiratory disease caused by a new coronavirus, known as COVID-19 (COVID). In response, most U.S. states have implemented measures to combat the outbreak of COVID and such responses have impacted operations of U.S. businesses. As of the date of the issuance of the Company's September 30, 2022 combined financial statements, the Company's operations have been impacted by COVID and the Company continues to monitor the situation, but no impairments to the Company's accounts were recorded, as no triggering events or material changes in operational circumstances resulting from COVID had occurred. However, due to uncertainty surrounding COVID, management's judgment regarding this could change in the future. In addition, while the Company's results of operations, cash flows, and financial condition could be impacted by COVID, the extent of the impact cannot be reasonably estimated at this time. NOTE 3 - PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment consist of the following at: September 30, 2022 December 31, 2021 Plant facilities and buildings $156,870 $156,763 Pipeline 76,256 76,082 Rights-of-way 8,591 8,529 Water wells 6,029 6,029 Vehicles, equipment and tools 2,826 2,640 Pumping stations 1,143 1,143 Computers and software 513 492 Water tanks 569 569 Leasehold improvements 284 284 Land 262 262 Furniture and fixtures 46 46 Construction work in process 15,680 4,143 Total property, plant and equipment 269,069 256,982 Less accumulated depreciation (84,658) (75,278) Net property, plant and equipment, net $184,411 $181,704 Depreciation expense for the nine months ended September 30, 2022 and 2021 was $9,435 and $9,468, respectively. NOTE 4 - GOODWILL AND OTHER INTANGIBLE ASSETS As of September 30, 2022 and 2021, the Company had goodwill of $1,484 recorded within the SEI reporting unit. As discussed above in Note 2, the Company's goodwill is evaluated for impairment annually at year- end or when events or circumstances occur, indicating that goodwill might be impaired. In performing the goodwill impairment analysis, the Company assessed relevant macroeconomic, industry and entity-specific events and circumstances, seeking to identify the presence of Triggering Events and determined that no Triggering Events existed as of September 30, 2022 and 2021.

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Sterling Conveyed Entities NOTES TO UNAUDITED CONDENSED COMBINED FINANCIAL STATEMENTS - CONTINUED September 30, 2022 and 2021 (All dollar amounts in thousands unless otherwise noted) 17 Other intangible assets consisted of the following at: September 30, 2022 December 31, 2021 Water rights 8,436 8,436 Noncompete agreement (5 year lives) 5,610 5,610 Customer relationship (5 - 20 year lives) 4,485 4,485 Customer contracts (1 - 20 year lives) 1,495 1,495 Total intangible assets 20,026 20,026 Less accumulated amortization (9,672) (9,510) Other intangible assets, net $10,354 $10,516 Amortization expense for the nine months ended September 30, 2022 and 2021 were $163 and $1,107, respectively. Estimated future amortization expense related to intangible assets held as of September 30, 2022, is as follows: Periods Ending September 30, 2022 $55 2023 217 2024 217 2025 217 2026 217 Thereafter 995 NOTE 5 - COMMITMENTS AND CONTINGENCIES The Company had one $1,500 letter of credit (LOC) posted on its behalf by SIH to support operations as of September 30, 2022, and one $1,500 letter of credit (LOC) posted on its behalf by SIH to support operations as of December 31, 2021. For the nine months ended September 30, 2022 and the year ended December 31, 2021, these LOCs had not been drawn upon. In 2016, the Company acquired certain assets to enable CWP to supply fresh water to oil and gas production companies through its Centennial Water System. Terms and conditions of this acquisition require the Company to pay the entity from which it acquired such assets (the Seller) a percentage of future revenues derived from the supply of fresh water to oil and gas production companies. As of September 30, 2022 and December 31, 2021, the fair market value of the Company's obligation (the Deferred earn-out) to the Seller were $4,745 and $5,900, respectively. The term of Deferred earn-out is finite and contingent upon the amount of fresh water supply revenue earned by the Company in future years. Prior to and during the nine months ended September 30, 2022 and the year ended December 31, 2021, the Company entered into multiple non-cancelable operating leases of compression equipment, gas processing equipment, gas treating equipment, office printing and copying equipment for which payment obligations exist through 2026. Also, in 2012, the Company entered into a non-cancelable operating lease of office space for which payment obligations existed through 2018. This lease was amended in 2014 to increase the amount of leased office space and the corresponding payments but it did not extend the term

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![](a2022sterlingconveyedent015.jpg)

Sterling Conveyed Entities NOTES TO UNAUDITED CONDENSED COMBINED FINANCIAL STATEMENTS - CONTINUED September 30, 2022 and 2021 (All dollar amounts in thousands unless otherwise noted) 18 of the payment obligations. This lease for operating space was amended and extended in 2018 and again in 2021 and such amendment imposed the company with payment obligations through September 24, 2021. Also, in 2021, the company entered into a non-cancelable operating sublease of office space for which payment obligations existed through June 30, 2022. Lease expense was $2,179 and $1,839 for the nine months ended September 30, 2022 and 2021, respectively. The office lease commitment expired on September 24, 2021. The office sublease commitment expired on June 30, 2022. Remaining terms for equipment leases range from six months to five years. From time to time, the Company has been and may be involved in legal proceedings arising from the normal course of its business. The Company is not aware of any pending or threatened litigation against the Company that it believes could have a material adverse effect on its business, operating results, financial condition or cash flows. The table below summarizes the Company's future payment commitments under noncancelable operating and leases and firm transportation agreements as of September 30, 2022: Periods Ending September 30, 2022 $470 2023 1,029 2024 709 2025 709 2026 177 Thereafter - Total $3,094 NOTE 6 - SUBSEQUENT EVENTS The Company evaluated its September 30, 2022 financial statements for subsequent events through February 14, 2023, which represents the date that the condensed combined financial statements were available to be issued. On December 1, 2022, SIH sold 100% of its interest in each of the Conveyed Entities (SEI, CWP and GEM) of the Company to Summit Midstream Partners, LP (NYSE: SMLP). No other subsequent events have occurred that, except as previously disclosed, would require recognition or disclosure in the combined financial statements or the notes thereto.

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## Exhibit 99.7

**EXHIBIT 99.7**

**SUMMIT MIDSTREAM PARTNERS, LP AND SUBSIDIARIES**

**PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS (UNAUDITED)**

***December 2022 acquisitions of Outrigger DJ Midstream and Sterling DJ.***

As previously disclosed, on December 1, 2022, Summit Midstream Holdings, LLC ("SMP Holdings"), a wholly owned subsidiary of Summit Midstream Partners, LP (including its subsidiaries, collectively "SMLP" or the "Partnership"), completed the acquisition of Outrigger DJ Midstream LLC ("Outrigger DJ") from Outrigger Energy II LLC, for cash consideration of $165.0 million, subject to post-closing adjustments and each of Sterling Energy Investments LLC, Grasslands Energy Marketing LLC and Centennial Water Pipelines LLC (collectively, "Sterling DJ") from Sterling Investment Holdings LLC, for cash consideration of $140.0 million, subject to post-closing adjustments (collectively the "DJ Acquisitions"), each pursuant to definitive agreements, dated October 14, 2022 (collectively the "DJ Purchase Agreements"). The DJ Purchase Agreements contain customary representations and warranties, covenants and indemnification provisions. Outrigger DJ and Sterling DJ own natural gas gathering and processing systems, a crude oil gathering system, freshwater rights and a freshwater delivery system located near the Partnership's Hereford assets in Weld County, Colorado.

***September 2022 disposition of Bison Gathering System.***

As previously disclosed on September 19, 2022, the Partnership, completed the sale of Bison Midstream, LLC ("Bison Midstream") (the "Bison Sale") to a subsidiary of Steel Reef Infrastructure Corp. ("Steel Reef") for cash consideration of $36.7 million, which was net of cash disposed of and includes certain working capital adjustments, pursuant to a purchase agreement, dated September 19, 2022, by and between SMP Holdings and Steel Reef US Corp. (the "Purchase Agreement"). Bison Midstream owns a gas gathering system in the Burke and Mountrail counties of North Dakota. The Purchase Agreement contains customary representations and warranties, covenants and indemnification provisions.

***June 2022 disposition of Lane G&P System.***

As previously disclosed, on June 30, 2022, the Partnership completed the sale of Summit Midstream Permian, LLC ("Summit Permian") (the "Permian Sale") to a wholly owned subsidiary of Matador Resources Company ("Matador") and received cash of approximately $75.1 million, which was net of cash disposed of and included certain working capital adjustments. In connection with the sale, a subsidiary of Matador also assumed the Partnership's take-or-pay firm capacity on the Partnership's Double E Pipeline joint venture ("Double E Pipeline"). The Partnership is the operator of the Double E Pipeline joint venture and owns a 70% interest.

***Unaudited Pro Forma Condensed Combined Financial Statements***

The following unaudited pro forma condensed combined financial statements of the Partnership are presented to illustrate the effect to the Partnership's historical financial position and operating results of (i) the acquisition of Outrigger DJ, (ii) the acquisition of Sterling DJ, (iii) the Permian Sale, (iv) the Bison Sale (v) the financing activities completed by the Partnership to close the DJ Acquisitions and (vi) the assumption of the Partnership's take-or-pay firm capacity on the Double E Pipeline by a subsidiary of Matador.

The Bison Sale, the Permian Sale, and each of the DJ Acquisitions constituted significant transactions for purposes of Item 2.01 of Form 8-K. As a result, the Partnership prepared the accompanying unaudited pro forma condensed combined financial statements in accordance with Article 11 of Regulation S-X. Neither of the divestitures qualified as a discontinued operation because neither divestiture represented a strategic shift that will have a major effect on SMLP's operations or financial results.

Certain historical amounts of Outrigger DJ and Sterling DJ have been reclassified to conform to the Partnership's financial statement presentation. The accompanying Summit Midstream Partners, LP unaudited pro forma condensed combined balance sheet as of September 30, 2022 has been prepared to give effect to (i) known subsequent event purchase price settlements related to the Bison Sale and (ii) the DJ Acquisitions as if they had occurred on September 30, 2022. The unaudited pro forma condensed combined statements of operations for the year ended December 31, 2021 and for the nine months ended September 30, 2022 have been prepared to give effect to the DJ Acquisitions, the Bison Sale, and the Permian Sale as if they had occurred on January 1, 2021.

The unaudited pro forma condensed combined balance sheet and statements of operations included herein are for information purposes only and are not necessarily indicative of the results that might have occurred had the divestiture or acquisition taken place on the respective dates assumed. Actual results may differ significantly from those reflected in the unaudited condensed

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combined pro forma financial statements for various reasons, including but not limited to, the anticipated realization of ongoing savings from operating efficiencies, or offsetting unknown or underestimated preacquisition liabilities, and the differences between the assumptions used to prepare the unaudited pro forma condensed combined financial statements and actual results.

The pro forma adjustments in the unaudited pro forma condensed combined balance sheet and the statements of operations included herein include the use of estimates and assumptions as described in the accompanying notes. The pro forma adjustments are based on information available to the Partnership at the time these unaudited pro forma condensed combined financial statements were prepared. The Partnership believes its current estimates provide a reasonable basis of presenting the significant effects of the transaction. However, the estimates and assumptions are subject to change as additional information becomes available. The unaudited pro forma condensed combined financial statements only include adjustments related to the DJ Acquisitions, the Bison Sale, and the Permian Sale.

This pro forma information is based on the historical consolidated financial statements of SMLP and should be read in conjunction with the condensed consolidated financial statements and accompanying footnotes included in the Partnership's Quarterly Report on Form 10-Q for the three and nine months ended September 30, 2022 and the consolidated financial statements and accompanying footnotes in its Annual Report on Form 10-K for the year ended December 31, 2021, filed with the Securities Exchange Commission on November 7, 2022 and February 28, 2022, respectively.

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**SUMMIT MIDSTREAM PARTNERS, LP AND SUBSIDIARIES**

**PRO FORMA CONDENSED COMBINED BALANCE SHEET (UNAUDITED)**

**As of September 30, 2022**

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| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **(In thousands, except unit amounts)** | **SMLP Historical** | **Bison Conforming Adjustments** | | **Outrigger DJ Historical** | **Outrigger DJ Conforming Adjustments (a)** | | **Sterling DJ Historical** | **Sterling DJ Conforming Adjustments (b)** | | **Pro forma<br>Combined** |
| **ASSETS** | | | | | | | | | | |
| Cash and cash equivalents | $10450 | $— |  | $2221 | $(1221) | **(a)** | $1939 | $(1439) | **(b)** | $11950 |
| Restricted cash | 3514 |  |  |  |  |  |  |  |  | 3514 |
| Accounts receivable | 57593 | (1000) | **(d)** | 11327 | (3802) | **(a)** | 14598 | (448) | **(b)** | 78268 |
| Other current assets | 4834 |  |  | 557 | 1256 | **(a)** | 3006 | 3348 | **(b)** | 13001 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total current assets | 76391 | (1000) |  | 14105 | (3767) |  | 19543 | 1461 |  | 106733 |
| Property, plant and equipment, net | 1477051 |  |  | 189724 | (46937) | **(a)** | 184411 | (82130) | **(b)** | 1722119 |
| Intangible assets, net | 144002 |  |  |  | 21447 | **(a)** | 10354 | 28325 | **(b)** | 204128 |
| Investment in equity method investees | 513974 |  |  |  |  |  |  |  |  | 513974 |
| Other noncurrent assets | 28254 |  |  | 55 | (55) | **(a)** | 1486 | 8379 | **(b)** | 38119 |
| &nbsp;&nbsp;&nbsp;&nbsp;TOTAL ASSETS | $2239672 | $(1000) |  | $203884 | $(29312) |  | $215794 | $(43965) |  | $2585073 |
| **LIABILITIES AND CAPITAL** |  |  |  |  |  |  |  |  |  |  |
| Trade accounts payable | $9448 | $— |  | $418 | $431 | **(a)** | $10167 | $(2794) | **(b)** | $17670 |
| Accrued expenses <sup>(1)</sup> | 22209 |  |  | 8458 | (2366) | **(a)** | 3576 | 6691 | **(b)** | 38568 |
| Deferred revenue | 9176 |  |  |  |  |  |  |  |  | 9176 |
| Accrued interest | 34185 |  |  |  |  |  |  |  |  | 34185 |
| Accrued environmental remediation | 1604 |  |  |  |  |  |  |  |  | 1604 |
| Current portion of long-term debt | 9009 |  |  |  |  |  |  |  |  | 9009 |
| Other current liabilities | 11474 |  |  |  |  |  |  | 2428 | **(b)** | 13902 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total current liabilities | 97105 |  |  | 8876 | (1935) |  | 13743 | 6325 |  | 124114 |
| Long-term debt, net | 1165189 |  |  |  | 160002 | **(c)** |  | 132114 | **(c)** | 1457305 |
| Noncurrent deferred revenue | 38793 |  |  |  |  |  |  |  |  | 38793 |
| Noncurrent accrued environmental remediation | 2272 |  |  |  |  |  |  |  |  | 2272 |
| Other noncurrent liabilities | 29269 |  |  | 3700 | (3700) | **(a)** | 4745 | 8602 | **(b)** | 42616 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total liabilities | 1332628 |  |  | 12576 | 154367 |  | 18488 | 147041 |  | 1665100 |
| Commitments and contingencies |  |  |  |  |  |  |  |  |  |  |
| **Mezzanine Capital** |  |  |  |  |  |  |  |  |  |  |
| Subsidiary Series A Preferred Units | 115223 |  |  |  |  |  |  |  |  | 115223 |
| **Partners' Capital** |  |  |  |  |  |  |  |  |  |  |
| Series A Preferred Units | 83252 |  |  |  |  |  |  |  |  | 83252 |
| Common limited partner capital | 708569 | (1000) | **(e)** | 191308 | (183679) | **(e)** | 197306 | (191006) | **(e)** | 721498 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total partners' capital | 791821 | (1000) |  | 191308 | (183679) |  | 197306 | (191006) |  | 804750 |
| &nbsp;&nbsp;&nbsp;&nbsp;TOTAL LIABILITIES AND CAPITAL | $2239672 | $(1000) |  | $203884 | $(29312) |  | $215794 | $(43965) |  | $2585073 |

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<sup>(1)</sup> Accrued expenses include, after the effects of conforming adjustments, $8.5 million of ad valorem taxes payable and $9.7 million of accrued compensation and employee benefits.

The accompanying notes are an integral part of these unaudited pro forma condensed combined financial statements.

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**SUMMIT MIDSTREAM PARTNERS, LP AND SUBSIDIARIES**

**PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS (UNAUDITED)**

**For the Nine Months Ended September 30, 2022**

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| | | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **(In thousands, except per-unit amounts)** | **SMLP Historical** | **Outrigger DJ Historical** | **Outrigger DJ Conforming Adjustments** | | **Sterling DJ Historical** | **Sterling DJ Conforming Adjustments** | | **Permian Disposition <br>Adjustments** | | **Bison Disposition Adjustments** | | **Financing Conforming Adjustments** | | **Pro forma<br>Combined** |
| **Revenues:** | | | | | | | | | | | | | | |
| Gathering services and related fees | $187465 | $533 | $— |  | $— | $— |  | $(3669) | **(f)** | $(196) | **(f)** | $— |  | $184133 |
| Natural gas, NGLs and condensate sales | 67364 | 83642 |  |  | 104048 |  |  | (30003) | **(f) (h)** | (41224) | **(f)** |  |  | 183827 |
| Other revenues | 29042 |  |  |  | 7971 |  |  | (531) | **(f)** | (9867) | **(f)** |  |  | 26615 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total revenues | 283871 | 84175 |  |  | 112019 |  |  | (34203) |  | (51287) |  |  |  | 394575 |
| **Costs and expenses:** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Cost of natural gas and NGLs | 64162 | 63927 |  |  | 76783 |  |  | (19081) | **(f) (h)** | (40044) | **(f)** |  |  | 145747 |
| Operation and maintenance | 61216 | 3692 |  |  | 11597 |  |  | (3082) | **(f)** | (4970) | **(f)** |  |  | 68453 |
| General and administrative | 31983 | 221 |  |  | 3512 | 40 | **(l)** | (358) | **(f)** | (274) | **(f)** |  |  | 35124 |
| Depreciation and amortization | 89397 | 7586 | (2551) | (l) | 9597 | (46) | **(l)** | (2733) | **(f)** | (1561) | **(f)** |  |  | 99689 |
| Transaction costs | 1750 |  |  |  |  |  |  |  |  |  |  |  |  | 1750 |
| (Gain) loss on asset sales, net | (409) | (2151) |  |  |  |  |  | 13 | **(j)** | (13) | **(f)** |  |  | (2560) |
| Long-lived asset impairments | 91644 |  |  |  |  |  |  | (84516) | **(j)** | (6945) | **(j)** |  |  | 183 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total costs and expenses | 339743 | 73275 | (2551) |  | 101489 | (6) |  | (109757) |  | (53807) |  |  |  | 348386 |
| Other income (expense), net | (4) | 141 |  |  | (639) |  |  |  |  |  |  |  |  | (502) |
| Gain on interest rate swaps | 16491 |  |  |  |  |  |  |  |  |  |  |  |  | 16491 |
| Loss on sale of business | (85) |  |  |  |  |  |  |  |  |  |  |  |  | (85) |
| Interest expense | (73982) |  |  |  | 1 |  |  |  |  |  |  | (14970) | **(g)** | (88951) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Income (loss) before income taxes and equity method investment income | (113452) | 11041 | 2551 |  | 9892 | 6 |  | 75554 |  | 2520 |  | (14970) |  | (26858) |
| Income tax expense | (307) |  |  |  |  |  |  |  |  |  |  |  |  | (307) |
| Income from equity method investees | 14162 |  |  |  |  |  |  |  |  |  |  |  |  | 14162 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net income (loss) | $(99597) | $11041 | $2551 |  | $9892 | $6 |  | $75554 |  | $2520 |  | $(14970) |  | $(13003) |
| &nbsp;&nbsp;&nbsp;Net income attributable to Subsidiary Series A Preferred Units | (12155) |  |  |  |  |  |  |  |  |  |  |  |  | (12155) |
| Net income (loss) attributable to Summit Midstream Partners, LP | $(111752) | $11041 | $2551 |  | $9892 | $6 |  | $75554 |  | $2520 |  | $(14970) |  | $(25158) |
| &nbsp;&nbsp;&nbsp;Less: net income attributable to Series A Preferred Units | (6070) |  |  |  |  |  |  |  |  |  |  |  |  | (6070) |
| &nbsp;&nbsp;Add: deemed contribution from Preferred Exchange Offer | 20974 |  |  |  |  |  |  |  |  |  |  |  |  | 20974 |
| Net income attributable to common limited partners | $(96848) | $11041 | $2551 |  | $9892 | $6 |  | $75554 |  | $2520 |  | $(14970) |  | $(10254) |
| **Net income per limited partner unit:** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Common unit – basic | $(9.68) |  |  |  |  |  |  |  |  |  |  |  |  | $(1.03) |
| &nbsp;&nbsp;&nbsp;Common unit – diluted | $(9.68) |  |  |  |  |  |  |  |  |  |  |  |  | $(1.03) |
| **Weighted-average limited partner units outstanding:** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Common units – basic | 10003 |  |  |  |  |  |  |  |  |  |  |  |  | 10003 |
| &nbsp;&nbsp;&nbsp;Common units – diluted | 10003 |  |  |  |  |  |  |  |  |  |  |  |  | 10003 |

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The accompanying notes are an integral part of these unaudited pro forma condensed combined financial statements.

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**SUMMIT MIDSTREAM PARTNERS, LP AND SUBSIDIARIES**

**PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS (UNAUDITED)**

**For the Year Ended December 31, 2021**

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| | | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **(In thousands, except per-unit amounts)** | **SMLP Historical** | **Outrigger DJ Historical** | **Outrigger DJ Conforming Adjustments** | | **Sterling DJ Historical** | **Sterling DJ Conforming Adjustments** | | **Permian Disposition <br>Adjustments** | | **Bison Disposition Adjustments** | | **Financing Conforming Adjustments** | | **Pro forma<br>Combined** |
| **Revenues:** | | | | | | | | | | | | | | |
| Gathering services and related fees | $281705 | $933 | $— |  | $— | $— |  | $(8229) | **(f)** | $(223) | **(f)** | $— |  | $274186 |
| Natural gas, NGLs and condensate sales | 82768 | 73525 |  |  | 90404 |  |  | (28767) | **(f) (h)** | (47470) | **(f)** |  |  | 170460 |
| Other revenues | 36145 |  |  |  | 6241 |  |  | (481) | **(f)** | (14764) | **(f)** |  |  | 27141 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total revenues | 400618 | 74458 |  |  | 96645 |  |  | (37477) |  | (62457) |  |  |  | 471787 |
| **Costs and expenses:** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Cost of natural gas and NGLs | 81969 | 64250 |  |  | 59958 |  |  | (30163) | **(f) (h)** | (47637) | **(f)** |  |  | 128377 |
| Operation and maintenance | 74178 | 5425 |  |  | 12469 | 268 | (l) | (5585) | **(f)** | (7676) | **(f)** |  |  | 79079 |
| General and administrative | 58166 | 192 |  |  | 6010 | 53 | (k) | (478) | **(f)** | (305) | **(f)** |  |  | 63638 |
| Depreciation and amortization | 119076 | 9624 | (3199) | (l) | 14006 | (51) | (l) | (5858) | **(f)** | (2160) | **(f)** |  |  | 131438 |
| Transaction costs | 1677 |  | 2262 | **(i)** |  | 2734 | **(i)** | 935 | **(i)** | 350 | **(i)** |  |  | 7958 |
| Gain on asset sales, net | (369) | (4212) |  |  |  |  |  |  |  |  |  |  |  | (4581) |
| Long-lived asset impairments | 10151 |  |  |  |  |  |  | (595) | **(f)** | (41) | **(f)** |  |  | 9515 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total costs and expenses | 344848 | 75279 | (937) |  | 92443 | 3004 |  | (41744) |  | (57469) |  |  |  | 415424 |
| Other expense, net | (613) |  |  |  | (1173) |  |  |  |  |  |  |  |  | (1786) |
| Loss on ECP Warrants | (13634) |  |  |  |  |  |  |  |  |  |  |  |  | (13634) |
| Interest Expense | (66156) |  |  |  | 23 |  |  |  |  |  |  | (14890) | **(g)** | (81023) |
| Gain/loss on early extinguishment of debt | (3523) |  |  |  |  |  |  |  |  |  |  |  |  | (3523) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Income (loss) before income taxes and equity method investment income | (28156) | (821) | 937 |  | 3052 | (3004) |  | 4267 |  | (4988) |  | (14890) |  | (43603) |
| Income tax (expense) benefit | 327 |  |  |  |  |  |  |  |  |  |  |  |  | 327 |
| Income from equity method investees | 7880 |  |  |  |  |  |  |  |  |  |  |  |  | 7880 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net income (loss) | $(19949) | $(821) | $937 |  | $3052 | $(3004) |  | $4267 |  | $(4988) |  | $(14890) |  | $(35396) |
| &nbsp;&nbsp;&nbsp;Net income attributable to Subsidiary Series A Preferred Units | (16667) |  |  |  |  |  |  |  |  |  |  |  |  | (16667) |
| Net income attributable to Summit Midstream Partners, LP | $(36616) | $(821) | $937 |  | $3052 | $(3004) |  | $4267 |  | $(4988) |  | $(14890) |  | $(52063) |
| &nbsp;&nbsp;&nbsp;Less: net income attributable to Series A Preferred Units | (15998) |  |  |  |  |  |  |  |  |  |  |  |  | (15998) |
| &nbsp;&nbsp;Add: deemed contribution from Preferred Exchange Offer | 8326 |  |  |  |  |  |  |  |  |  |  |  |  | 8326 |
| Net income (loss) attributable to common limited partners | $(44288) | $(821) | $937 |  | $3052 | $(3004) |  | $4267 |  | $(4988) |  | $(14890) |  | $(59735) |
| **Net loss per limited partner unit:** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Common unit – basic | $(6.57) |  |  |  |  |  |  |  |  |  |  |  |  | $(8.86) |
| &nbsp;&nbsp;&nbsp;Common unit – diluted | $(6.57) |  |  |  |  |  |  |  |  |  |  |  |  | $(8.86) |
| **Weighted-average limited partner units outstanding:** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Common units – basic | 6741 |  |  |  |  |  |  |  |  |  |  |  |  | 6741 |
| &nbsp;&nbsp;&nbsp;Common units – diluted | 6741 |  |  |  |  |  |  |  |  |  |  |  |  | 6741 |

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The accompanying notes are an integral part of these unaudited pro forma condensed combined financial statements.

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**SUMMIT MIDSTREAM PARTNERS, LP AND SUBSIDIARIES**

**NOTES TO PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS (UNAUDITED)**

**1. BASIS OF PRESENTATION**

The accompanying unaudited pro forma condensed combined financial statements (the "Pro Forma Financial Statements") were prepared in accordance with Article 11 of Regulation S-X and are based on the historical financial information of SMLP, Outrigger DJ, and Sterling DJ. Presented in the Pro Forma Financial Statements are the acquisition impacts of the DJ Acquisitions, including the related impact of financing the DJ Acquisitions, and the disposition impacts of the Permian Sale and the Bison Sale. Neither of the divestitures qualified as a discontinued operation because neither divestiture represented a strategic shift that will have a major effect on SMLP's operations or financial results.

Certain transaction accounting adjustments have been made in order to show the effects of the DJ Acquisitions in the Pro Forma Financial Statements. These adjustments are preliminary and involve management estimates about fair value, liabilities assumed, and the useful lives of the assets acquired, among others.

The accounting adjustments are described in the accompanying notes and are based on available information and certain assumptions that SMLP believes are reasonable; however, actual results may differ from those reflected in these statements. The Pro Forma Financial Statements do not purport to represent what SMLP's financial position or results of operations would have been if the DJ Acquisitions, the Permian Sale, and the Bison Sale had occurred on the dates described in the Pro Forma Financial Statements, and they may not be indicative of SMLP's future financial position or results of operations. Certain information normally included in financial statements and the accompanying notes has been condensed or omitted. The Pro Forma Financial Statements should be read in conjunction with the historical financial statements and related notes of Outrigger DJ and Sterling DJ for the periods presented.

The pro forma condensed combined balance sheet as of September 30, 2022 gives effect to the acquisition of Sterling DJ and Outrigger DJ as if they had been completed on September 30, 2022 and also includes known subsequent event purchase price settlements related to the Bison Sale. The pro forma condensed statement of operations for the nine months ended September 30, 2022 gives effect to the DJ Acquisitions, the Permian Sale, and the Bison Sale as if they had been completed on January 1, 2021. The pro forma condensed combined statement of operations for the year ended December 31, 2021 gives effect to the DJ Acquisitions, the Permian Sale, and the Bison Sale as if they had been completed on January 1, 2021.

The unaudited condensed combined pro forma balance sheet as of September 30, 2022 and the unaudited pro forma condensed combined statement of operations for the nine months ended September 30, 2022 and the year ended December 31, 2021 have been compiled in a manner consistent with the accounting policies adopted by SMLP. Certain reclassifications and adjustments have also been made to the historical financial information of Outrigger DJ and Sterling DJ presented herein to conform to SMLP's historical presentation.

The unaudited pro forma condensed combined statements reflect the following adjustments:

***Balance Sheet***

"Historical" - represents the historical unaudited condensed combined balance sheets of SMLP, Outrigger DJ and Sterling DJ as of September 30, 2022.

*<u>Outrigger DJ</u>*

(a) Reflects adjustments for cash consideration paid of $167.6 million and preliminary fair value measurements of the assets acquired and liabilities assumed by the Partnership for the acquisition of Outrigger DJ.

The acquisition of Outrigger DJ was accounted for using the acquisition method of accounting for business combinations. The preliminary purchase price was allocated to the net assets acquired based upon their estimated fair values. The fair value measurements of assets acquired and liabilities assumed are based on inputs that are not observable in the market and therefore represent Level 3 inputs. These inputs require significant judgments and estimates, as a result, the provisional measurements are preliminary and subject to change during the measurement period and such changes could be material.

The Partnership estimates the fair value of Outrigger DJ to be approximately $167.6 million, which it considers to be representative of the price paid by a typical market participant. This measurement resulted in no goodwill or bargain purchase price being recognized. The transaction costs are estimated to be $3.9 million and were expensed as incurred.

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The following table summarizes the consideration paid for the Outrigger DJ acquisition and the fair value of assets acquired and liabilities assumed:

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| | |
|:---|:---|
| (in thousands) |  |
| Cash consideration paid for Outrigger DJ, including adjustments for working capital | $167631 |
| &nbsp;&nbsp;Recognized amounts of identifiable assets acquired and liabilities assumed: |  |
| &nbsp;&nbsp;Accounts receivable | 7525 |
| &nbsp;&nbsp;Other current assets (including $1.0 million of cash acquired) | 2813 |
| &nbsp;&nbsp;Property, plant and equipment | 142787 |
| &nbsp;&nbsp;Intangible assets | 21447 |
| &nbsp;&nbsp;Trade accounts payable, accrued expenses and other | (6941) |
| Net assets acquired | $167631 |

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*<u>Sterling DJ</u>*

(b) Reflects adjustments for cash consideration paid of $138.4 million and preliminary fair value measurements of assets acquired and liabilities assumed by the Partnership for the Sterling DJ acquisition, including $9.9 million of lease assets, recognized within other non-current assets, and the corresponding liability, recognized within other current and non-current liabilities, as a result of applying SMLP's accounting policies to the private company financial statements of Sterling DJ.

The acquisition of Sterling DJ was accounted for using the acquisition method of accounting for business combinations. The preliminary purchase price was allocated to the net assets acquired based upon their estimated fair values. The fair value measurements of assets acquired and liabilities assumed are based on inputs that are not observable in the market and therefore represent Level 3 inputs. These inputs require significant judgments and estimates, as a result, the provisional measurements are preliminary and subject to change during the measurement period and such changes could be material.

The Partnership estimates the fair value of Sterling DJ to be approximately $138.4 million, which it considers to be representative of the price paid by a typical market participant. This measurement resulted in no goodwill or bargain purchase price being recognized. The transaction costs are estimated to be $2.5 million and were expensed as incurred. The Partnership continues to assess the acquired liabilities of Sterling DJ and ongoing assessments primarily relate to outstanding litigation and other legal compliance matters that existed prior to December 1, 2022.

The following table summarizes the consideration paid for the Sterling DJ acquisition and the fair value of assets acquired and liabilities assumed:

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| | |
|:---|:---|
| (in thousands) |  |
| Cash consideration paid for Sterling DJ, including adjustments for working capital | $138414 |
| &nbsp;&nbsp;Recognized amounts of identifiable assets acquired and liabilities assumed: |  |
| &nbsp;&nbsp;Accounts receivable | 14150 |
| &nbsp;&nbsp;Other current assets (includes $0.5 million of cash acquired) | 6854 |
| &nbsp;&nbsp;Property, plant and equipment, net | 102281 |
| &nbsp;&nbsp;Intangible assets | 38679 |
| &nbsp;&nbsp;Other non-current assets | 9865 |
| &nbsp;&nbsp;Trade accounts payable, accrued expenses and other | (20068) |
| &nbsp;&nbsp;Other non-current liabilities | $(13347) |
| Net assets acquired | $138414 |

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(c) The DJ Acquisitions were financed through a combination of borrowings under SMLP's asset-based lending credit facility governed by the ABL Agreement (the "ABL Facility") and the issuance of $85.0 million aggregate principal amount of 8.500% Senior Secured Second Lien Notes due 2026 (the "Additional 2026 Secured Notes"). The DJ Acquisitions represent a reinvestment of approximately $115.0 million of the net proceeds received from the previously announced Permian Sale and Bison Sale.

(d) Adjustment related to an updated net working capital calculation in connection with the Bison Sale.

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(e) Reflects the elimination of historical equity in accordance with the acquisition method of accounting.

***Income Statement***

"Historical" - represents the historical consolidated statements of operations SMLP, Outrigger DJ, and Sterling DJ for the nine months ended September 30, 2022 and for the year ended December 31, 2021.

(f) Adjustments are to eliminate revenues and costs from the Partnership's consolidated results of operations resulting from the Bison Sale and the Permian Sale.

(g) Interest expense is adjusted to include the impact of approximate reductions of $75.0 million and $40.0 million to SMLP's ABL Facility with proceeds received from the Permian Sale and Bison Sale, respectively, as well as the impact of the incremental borrowings for the DJ Acquisitions under the ABL Facility and issuance of $85.0 million of additional 2026 Secured Notes.

For the nine months ended September 30, 2022, the pro forma adjustment includes a reduction of interest expense of $1.6 million and $1.4 million related to the Permian Sale and Bison Sale, respectively and an increase of $15.4 million related to the DJ Acquisitions, which reflect rates on the ABL Facility applicable to the nine months ended September 30, 2022. For the year ended December 31, 2021, the pro forma adjustment includes a reduction of interest expense of $2.6 million and $1.4 million related to the Permian Sale and Bison Sale, respectively and an increase of $15.4 million related to the DJ acquisitions, which reflect rates on the applicable credit facility for the year ended December 31, 2021.

Additionally, interest expense is adjusted to reflect the impact of the amortization of issuance costs in connection with the $85.0 million of additional borrowings on the 2026 Secured Notes.

(h) Includes the impact of the termination of certain sales agreements as well as the assumption of the Partnership's take-or-pay firm capacity on the Double E Pipeline, by a subsidiary of Matador Resources Company, resulting from the Permian Sale, for the year ended December 31, 2021 and for the nine months ended September 30, 2022. The Partnership's Contractual Obligation Table, included in Part II of its Form 10-K for the fiscal year ended December 31, 2021, disclosed Double E Pipeline take-or-pay firm capacity obligations of $2.6 million, $2.6 million, $2.7 million, $3.3 million, and $3.3 million for the fiscal years ended December 31, 2022, 2023, 2024, 2025, and 2026, respectively.

(i) To adjust for unrecognized transaction costs associated with the DJ Acquisitions, the Bison Sale and the Permian Sale.

(j) To adjust for asset impairments and losses recognized as a result of the Permian Sale and the Bison Sale.

(k) To adjust lease expense as a result of applying SMLP's accounting policies to the private company financial statements of Sterling DJ in accordance with FASB ASC 842.

(l) To reflect adjustments as a result of applying SMLP's accounting policies for fixed asset useful lives and fixed asset capitalization criteria.

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