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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS |  |  |
CASH FLOWS FROM OPERATING ACTIVITIES | $ 310,977 | $ 291,788 |
Property, plant and equipment: |  |  |
Capital expenditures | (88,661) | (102,820) |
Change in accounts payable and accrued liabilities | 2,281 | (9,698) |
Proceeds from sale of property, plant and equipment | 6,432 | 2,750 |
Distributions received from investments in excess of cumulative earnings | 1,088 | 841 |
Escrow deposit for oil & gas reserve acquisition | (1,550) |  |
Net cash used in investing activities | (80,410) | (108,927) |
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Borrowings under securitization facility | 35,000 | 46,100 |
Payments under securitization facility | (90,900) | (47,700) |
Proceeds from equipment financings |  | 14,705 |
Payments on equipment financings | (12,888) | (10,622) |
Borrowings under revolving credit facilities | 15,000 | 70,000 |
Payments under revolving credit facilities | (102,500) | (190,000) |
Borrowings from line of credit | 3,230 |  |
Payments on finance lease obligations | (568) | (8,204) |
Payment of debt issuance costs | (113) | (5,821) |
Payments for purchase of units and tax withholdings related to settlements under deferred compensation plans | (1,090) | (1,310) |
Distributions paid to Partners | (26,086) | (51,753) | $ (51,753)
Other | (615) | (603) |
Net cash used in financing activities | (181,530) | (185,208) |
NET CHANGE IN CASH AND CASH EQUIVALENTS | 49,037 | (2,347) |
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD | 55,574 | 36,482 | 36,482
CASH AND CASH EQUIVALENTS AT END OF PERIOD | 104,611 | 34,135 | $ 55,574
SUPPLEMENTAL CASH FLOW INFORMATION: |  |  |
Cash paid for interest | 20,045 | 26,686 |
Cash paid for income taxes | 11 | 10 |
SUPPLEMENTAL NON-CASH ACTIVITY: |  |  |
Accounts payable for purchase of property, plant and equipment | 8,012 | 4,806 |
Right-of-use assets acquired by operating lease |  | 278 |
Market value of common units issued under deferred compensation plans before tax withholding requirements | $ 1,082 | $ 3,837 |

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