Dynagas LNG Partners (DLNG) 20-F 21 Apr 23 2022 FY Annual report (foreign) Financial data

Cover

Cover	12 Months Ended
	Dec. 31, 2022 shares
Document Information [Line Items]
Document Type	20-F
Amendment Flag	false
Document Registration Statement	false
Document Annual Report	true
Document Transition Report	false
Document Shell Company Report	false
Document Period End Date	Dec. 31, 2022
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2022
Current Fiscal Year End Date	--12-31
Entity File Number	001-36185
Entity Registrant Name	DYNAGAS LNG PARTNERS LP
Entity Central Index Key	0001578453
Entity Incorporation, State or Country Code	1T
Entity Address, Address Line One	Poseidonos Avenue and Foivis 2 Street
Entity Address, City or Town	Glyfada, Athens
Entity Address, Country	GR
Entity Address, Postal Zip Code	166 74
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false
Document Accounting Standard	U.S. GAAP
Entity Shell Company	false
Auditor Firm ID	1457
Auditor Name	Ernst & Young (Hellas) Certified Auditors Accountants S.A.
Auditor Location	Athens, Greece
Common Units Representing Limited Partnership Interests [Member]
Document Information [Line Items]
Title of 12(b) Security	Common units representing limited partnership interests
Trading Symbol	DLNG
Security Exchange Name	NYSE
Series A Preferred Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	9.00% Series A Cumulative Redeemable Preferred Units
Trading Symbol	DLNG PR A
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding	3,000,000
Series B Preferred Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	8.75% Series B Fixed to Floating Rate Cumulative Redeemable Perpetual Preferred Units
Trading Symbol	DLNG PR B
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding	2,200,000
Common Limited Partner [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding	36,802,247
General Partner [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding	35,526
Business Contact [Member]
Document Information [Line Items]
Entity Address, Address Line One	Poseidonos Avenue and Foivis 2 Street
Entity Address, City or Town	Glyfada, Athens
Entity Address, Country	GR
Entity Address, Postal Zip Code	166 74
City Area Code	+30
Local Phone Number	210 891 7960
Contact Personnel Name	Michael Gregos

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents	$ 48,598	$ 47,015
Trade accounts receivable	67	90
Prepayments and other assets	2,127	1,454
Inventories	885	909
Derivative financial instrument, current portion	22,544	555
Due from related party, current	0	1,144
Total current assets	74,221	51,167
FIXED ASSETS, NET:
Vessels, net	825,105	853,190
Total fixed assets, net	825,105	853,190
OTHER NON-CURRENT ASSETS:
Restricted cash	31,270	50,000
Due from related party	1,350	1,350
Accrued charter revenue	355	0
Deferred charges	1,289	1,505
Other receivables, non- current	1,789	0
Derivative financial instrument, non- current portion	12,333	8,269
Total assets	947,712	965,481
CURRENT LIABILITIES:
Current portion of long-term debt, net of unamortized deferred financing fees of $1,748 and $2,053, respectively	46,252	45,947
Trade payables	8,035	5,653
Due to related party	1,472	247
Accrued liabilities	2,656	1,421
Unearned revenue	11,855	11,660
Total current liabilities	70,270	64,928
NON-CURRENT LIABILITIES:
Deferred revenue	2,730	3,050
Long-term debt, net of current portion and unamortized deferred financing fees of $1,131 and $2,981, respectively	450,781	516,019
Total non-current liabilities	453,511	519,069
Commitments and contingencies	0	0
PARTNERS’ EQUITY:
Common unitholders (unlimited authorized; 36,802,247 units and 36,802,247 units issued and outstanding as at December 31, 2022 and 2021)	297,139	254,734
General Partner (35,526 units issued and outstanding as at December 31, 2022 and 2021)	78	36
Total partners’ equity	423,931	381,484
Total liabilities and partners’ equity	947,712	965,481
Series A Preferred Stock [Member]
PARTNERS’ EQUITY:
Preferred Units, Preferred Partners' Capital Accounts	73,216	73,216
Series B Preferred Stock [Member]
PARTNERS’ EQUITY:
Preferred Units, Preferred Partners' Capital Accounts	$ 53,498	$ 53,498

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred finance fees, current portion	$ 1,748	$ 2,053
Deferred finance fees, non-current portion	$ 1,131	$ 2,981
Common unitholders - units outstanding	36,802,247	36,802,247
General Partner unitholders - units issued	35,526	35,526
Series A Preferred Stock [Member]
Units authorized	3,450,000	3,450,000
Units outstanding	3,000,000	3,000,000
Units issued	3,000,000	3,000,000
Series B Preferred Stock [Member]
Units authorized	2,530,000	2,530,000
Units outstanding	2,200,000	2,200,000
Units issued	2,200,000	2,200,000

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
REVENUES:
Voyage revenues	$ 131,657	$ 137,746	$ 137,165
EXPENSES:
Voyage expenses	(1,328)	(939)	(1,275)
Voyage expenses-related party	(1,632)	(1,718)	(1,719)
Vessel operating expenses	(29,773)	(29,640)	(28,830)
Dry-docking and special survey costs	(12,791)	0	0
General and administrative expenses	(2,099)	(2,347)	(1,795)
General and administrative expenses- related party	(688)	(758)	(733)
Management fees-related party	(6,203)	(6,023)	(6,752)
Depreciation	(31,806)	(31,710)	(31,797)
Operating income	45,337	64,611	64,264
OTHER INCOME/(EXPENSES):
Interest and finance costs	(27,911)	(21,420)	(27,058)
Interest income	829	0	221
Gain/ (Loss) on derivative financial instrument	33,655	10,104	(3,148)
Gain on Debt extinguishment	2,072	0	0
Other, net	28	(35)	(227)
Total other expenses, net	8,673	(11,351)	(30,212)
Partnership’s Net Income	54,010	53,260	34,052
Common unitholders’ interest in Net Income	42,405	41,656	22,466
Subordinated unitholders’ interest in Net Income	0	0	0
General Partner’s interest in Net Income	$ 42	$ 41	$ 23
(Loss)/Earnings per unit, basic and diluted:
Common unit (basic and diluted)	$ 1.15	$ 1.14	$ 0.63
Weighted average number of units outstanding, basic and diluted:
Common units	36,802,247	36,504,120	35,546,823
Series A Preferred Stock [Member]
OTHER INCOME/(EXPENSES):
Preferred unitholders' interest in Net Income	$ 6,750	$ 6,750	$ 6,750
Series B Preferred Stock [Member]
OTHER INCOME/(EXPENSES):
Preferred unitholders' interest in Net Income	$ 4,813	$ 4,813	$ 4,813

Consolidated Statements of Part

Consolidated Statements of Partners' Equity - USD ($) $ in Thousands	Total	Limited Partner [Member]	General Partner [Member]	Series A Preferred Stock [Member]	Series B Preferred Stock [Member]
Beginning Balance, value at Dec. 31, 2019	$ 313,707	$ 187,021	$ (28)	$ 73,216	$ 53,498
Beginning Balance, units at Dec. 31, 2019		35,490,000	35,526	3,000,000	2,200,000
-Net income	34,052	$ 22,466	$ 23	$ 6,750	$ 4,813
-Issuance of common stock, net of issuance costs  (Note 8)	297	$ 297	0	0	0
-Issuance of units, net of issuance costs (Note 8), shares		122,580
-Distributions declared and paid (common and preferred units) (Note 8)	(11,563)	$ 0	0	(6,750)	(4,813)
Closing balance, value at Dec. 31, 2020	336,493	$ 209,784	$ (5)	$ 73,216	$ 53,498
Closing balance, units at Dec. 31, 2020		35,612,580	35,526	3,000,000	2,200,000
-Net income	53,260	$ 41,656	$ 41	$ 6,750	$ 4,813
-Issuance of common stock, net of issuance costs  (Note 8)	3,294	$ 3,294	0	0	0
-Issuance of units, net of issuance costs (Note 8), shares		1,189,667
-Distributions declared and paid (common and preferred units) (Note 8)	(11,563)	$ 0	0	(6,750)	(4,813)
Closing balance, value at Dec. 31, 2021	381,484	$ 254,734	$ 36	$ 73,216	$ 53,498
Closing balance, units at Dec. 31, 2021		36,802,247	35,526	3,000,000	2,200,000
-Net income	54,010	$ 42,405	$ 42	$ 6,750	$ 4,813
-Distributions declared and paid (common and preferred units) (Note 8)	(11,563)	0	0	(6,750)	(4,813)
Closing balance, value at Dec. 31, 2022	$ 423,931	$ 297,139	$ 78	$ 73,216	$ 53,498
Closing balance, units at Dec. 31, 2022		36,802,247	35,526	3,000,000	2,200,000

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from Operating Activities:
Net income:	$ 54,010	$ 53,260	$ 34,052
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	31,806	31,710	31,797
Amortization and write-off of deferred financing fees	2,032	2,285	2,527
Deferred revenue amortization	(675)	222	400
Amortization of deferred charges	216	501	217
Dry-docking and special survey costs	12,791	0	0
Loss/ (Gain) on derivative financial instruments	(33,655)	(10,104)	3,148
Gain on Debt extinguishment	(2,072)	0	0
Changes in operating assets and liabilities:
Trade accounts receivable	23	294	(241)
Prepayments and other assets	(1,284)	(505)	156
Inventories	24	(101)	(90)
Due from/to related parties	2,369	(2,603)	(496)
Trade accounts payable	(9,526)	1,280	(1,033)
Accrued liabilities	1,070	(235)	6
Deferred charges	0	(9)	(90)
Unearned revenue	195	3,596	(1,750)
Net cash provided by Operating Activities	57,324	79,591	68,603
Cash flows from Investing Activities:
Ballast water treatment system installation	(3,635)	0	0
Net cash used in Investing Activities	(3,635)	0	0
Cash flows from Financing Activities:
Net proceeds from issuance of common units	0	3,407	297
Payment of securities registration and other filing costs	0	(14)	(90)
Distributions declared and paid	(11,563)	(11,563)	(11,563)
Repayment of long-term debt	(64,893)	(48,000)	(48,000)
Other payments	(1,789)	0	0
Receipt/ (Payment) of derivative instruments	7,409	(1,385)	(474)
Net cash used in Financing Activities	(70,836)	(57,555)	(59,830)
Net increase/ (decrease) in cash and cash equivalents and restricted cash	(17,147)	22,036	8,773
Cash and cash equivalents and restricted cash at beginning of the year	97,015	74,979	66,206
Cash and cash equivalents and restricted cash at end of the year	79,868	97,015	74,979
RECONCILIATION OF CASH, CASH EQUIVALENTS AND RESTRICTED CASH
Cash and cash equivalents	48,598	47,015	24,979
Restricted cash	31,270	50,000	50,000
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations	79,868	97,015	74,979
Cash paid during the year for:
Interest	$ 25,397	$ 18,777	$ 24,440

Basis of Presentation and Gener

Basis of Presentation and General Information	12 Months Ended
	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and General Information	1. Basis of Presentation and General Information Dynagas LNG Partners LP (“Dynagas Partners” or the “Partnership”) was incorporated as a limited partnership on May 30, 2013 November 18, 2013 8,250,000 18.00 4,250,000 18.00 30 November 2023 In March 2020, the World Health Organization declared the outbreak of a novel coronavirus (or COVID-19) as a pandemic. The COVID-19 pandemic and measures to contain its spread have negatively impacted regional and global economies and trade patterns in markets in which the Partnership operates, the way the Partnership operates its business, and the businesses of its charterers and suppliers. The Partnership has incurred increased costs as a result of the preventative measures imposed in various jurisdictions creating delays and additional complexities with respect to port calls and crew rotations. However, as of December 31, 2022, the Partnership did not experience any significant negative financial impacts to its results of operations or financial position as a result of COVID-19. The Partnership earned in the year ended as of December 31, 2022, 41 39 As of April 4, 2022, SEFE Germania, which is the indirect parent of SEFE Marketing and Trading Singapore Pte. Ltd (‘SEFE”) (formerly known as Gazprom Marketing & Trading Singapore Pte Ltd) and all its subsidiaries, was placed under the control of the German government for an indefinite period of time and three of the Partnership’s vessels under the time charters with SEFE no longer trade from Russian LNG ports. Currently imposed sanctions, do not affect the Partnership’s compliance with terms imposed by its $675 Million Credit Facility As there is currently uncertainty regarding the global impact of the conflict which is ongoing, it is possible that further developments in sanctions or escalation of the conflict will affect the Partnership’s ability to continue to employ two out of six of its vessels to the current charterers and the suspension, termination or cancellation of such charter parties, could thus adversely affect the Partnership’s results of operation, cash flows and financial condition. The Partnership believes that despite the continuing uncertainty, in the event of suspension, termination, cancellation of any of these charters, it will be able to enter into replacement time charters acceptable to the lenders. Thus, the Partnership believes that it will be in a position to maintain sufficient cash generating capacity to cover its working capital needs and pay its installment obligations and be in compliance with all financial and non- financial covenants prescribed in its $675 Million Credit Facility, for the period ending twelve months after the issuance of the consolidated financial statements. As of December 31, 2022, the Partnership had a working capital surplus of $ 4.0 13.8 1. Basis of Presentation and General Information (continued): The Partnership is engaged in the seaborne transportation industry through the ownership and operation of high specification LNG vessels and is the sole owner (directly or indirectly) of all outstanding shares or units of the following subsidiaries as of December 31, 2022: Vessel Owning Subsidiaries: Basis of Presentation and General Information - Vessel Owning Subsidiaries (Table) Company Name Country of incorporation/ formation Vessel Name Delivery date from shipyard Delivery date to Partnership Cbm Capacity Pegasus Shipholding S.A. (“Pegasus”) Marshall Islands Clean Energy March 2007 October 2013 149,700 Lance Shipping S.A. (“Lance”) Marshall Islands Ob River July 2007 October 2013 149,700 Seacrown Maritime Ltd. (“Seacrown”) Marshall Islands Amur River January 2008 October 2013 149,700 Fareastern Shipping Limited (“Fareastern”) Malta Arctic Aurora July 2013 June 2014 155,000 Navajo Marine Limited (“Navajo”) Marshall Islands Yenisei River July 2013 September 2014 155,000 Solana Holding Ltd. (“Solana”) Marshall Islands Lena River October 2013 December 2015 155,000 Non-Vessel Owning Subsidiaries: Basis of Presentation and General Information - Non-Vessel Owning Subsidiaries (Table) Company Name Country of incorporation/formation Purpose of incorporation Dynagas Equity Holding Limited (“Dynagas Equity”) Marshall Islands Holding company that owns all of the outstanding share capital of Arctic LNG Carriers Ltd. (“Arctic LNG”). Dynagas Operating GP LLC (“Dynagas Operating GP”) Marshall Islands Limited Liability Company in which the Partnership holds a 100% membership interest and which has 100 Dynagas Operating LP (“Dynagas Operating”) Marshall Islands Limited partnership in which the Partnership holds a 100 Dynagas Finance Inc. Marshall Islands Wholly owned subsidiary of the Partnership whose activities were limited to the co-issuance of the 2019 Notes discussed under Note 5 and engaging in other activities incidental thereto. Arctic LNG Carriers Ltd. Marshall Islands Wholly owned subsidiary of the Partnership which is directly wholly owned by Dynagas Equity and which owns all of the issued and outstanding share capital of Pegasus, Lance, Seacrown, Fareastern, Navajo, Solana and Dynagas Finance LLC. Dynagas Finance LLC Delaware Wholly owned subsidiary of Arctic LNG and co-borrower of the Partnership’s Term Loan B discussed under Note 5. 1. Basis of Presentation and General Information (continued): Since the Partnership’s inception, the technical, administrative and commercial management of the Partnership’s fleet is performed by Dynagas Ltd. (“Dynagas” or the “Manager”), a related company, wholly owned by the Partnership’s Chairman (Note 3(a)). As of December 31, 2022, the Partnership’s Sponsor owned 42.4 0.1

Significant Accounting Policies

Significant Accounting Policies and Recent Accounting Pronouncements	12 Months Ended
	Dec. 31, 2022
Accounting Policies [Abstract]
Significant Accounting Policies and Recent Accounting Pronouncements	2. Significant Accounting Policies and Recent Accounting Pronouncements (a) Principles of Consolidation : The accompanying consolidated financial statements have been prepared in accordance with Generally Accepted Accounting Principles in the United States of America (“U.S. GAAP”). The consolidated financial statements include the accounts of Dynagas Partners and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated upon consolidation. Dynagas Partners, as the holding company, determines whether it has a controlling financial interest in an entity by first evaluating whether the entity is a voting interest entity or a variable interest entity. Under Financial Accounting Standards Board (“FASB”) Accounting Standard Codification (“ASC”) 810 “Consolidation”, a voting interest entity is an entity in which the total equity investment at risk is deemed sufficient to absorb the expected losses of the entity, the equity holders have all the characteristics of a controlling financial interest and the legal entity is structured with substantive voting rights. The holding company consolidates voting interest entities in which it owns all, or at least a majority (generally, greater than 50%) of the voting interest. Variable interest entities (“VIE”) are entities, as defined under ASC 810, that in general either have equity investors with non-substantive voting rights or that have equity investors that do not provide sufficient financial resources for the entity to support its activities. The holding company has a controlling financial interest in a VIE and is, therefore, the primary beneficiary of a VIE if it has the power to direct the activities of a VIE that most significantly impact the VIE’s economic performance and the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. A VIE should have only one primary beneficiary which is required to consolidate the VIE. A VIE may not have a primary beneficiary if no party meets the criteria described above. The Partnership evaluates all arrangements that may include a variable interest in an entity to determine if it is the primary beneficiary, and would therefore be required to include assets, liabilities and operations of a VIE in its consolidated financial statements. As of the years ended December 31, 2022, 2021 and 2020, no such interests existed. (b) Use of Estimates : The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. (c) Other Comprehensive Income : The Partnership follows the provisions of ASC 220, “Comprehensive Income”, which requires separate presentation of certain transactions which are recorded directly as components of equity. The Partnership has no such transactions which affect other comprehensive income and accordingly, for the years ended December 31, 2022, 2021 and 2020, comprehensive income equaled net income. 2. Significant Accounting Policies and Recent Accounting Pronouncements (continued): (d) Foreign Currency Translation (e) Cash and Cash Equivalents : The Partnership considers highly liquid investments, such as time deposits with an original maturity of three months or less, to be cash equivalents. (f) Restricted cash (g) Trade Accounts Receivable : The amount shown as trade accounts receivable at each balance sheet date, mainly includes receivables from charterers for hire from lease agreements, net of any provision for doubtful accounts, if any. At each balance sheet date, all potentially uncollectible accounts are assessed individually for purposes of determining the appropriate provision for doubtful accounts primarily based on the aging of such balances and any amounts in dispute. Operating lease receivables under ASC 842 are not in scope of ASC 326 for assessment of credit loss. ASC 842 requires lessors to evaluate the collectability of all lease payments. If collection of all operating lease payments, plus any amount necessary to satisfy a residual value guarantee, is not probable (either at lease commencement or after the commencement date), lease income is constrained to the lesser of cash collected or lease income reflected on a straight-line or another systematic basis, plus variable rent when it becomes accruable. Provision for doubtful accounts as of December 31, 2022 and 2021, was nil. 0 (h) Inventories (i) Insurance Claims 2. Significant Accounting Policies and Recent Accounting Pronouncements (continued): (j) Vessels, Net straight-line 0.500 35 years (k) Impairment of Long-Lived Assets The projected net operating cash flows are determined by considering the charter revenues from existing time charters for the fixed fleet days and by estimating charter rates for the unfixed days. Expected outflows for scheduled vessel maintenance and vessel operating expenses are based on the Partnership’s budget by using historical data, which is adjusted annually with the assumption of the average annual inflation rate prevailing at the time of the impairment test. In developing the estimate for the effective fleet utilization, the Partnership takes into account the period(s) each vessel is expected to undergo her scheduled maintenance (dry-docking and special surveys) and each vessel’s loss of hire resulting from repositioning or other conditions. In developing estimates for the remaining estimated useful lives of the current fleet and scrap values, the Partnership utilizes methods, which are identical to those employed as part of the Partnership’s depreciation policy. As and for each of the years ended December 31, 2022, 2021 and 2020, the Partnership incurred no 2. Significant Accounting Policies and Recent Accounting Pronouncements (continued): (l) Intangible Assets/Liabilities Related to Time Charters Acquired (m) Accounting for Special Survey and Dry-Docking Costs five years 2.5 (n) Financing Costs (o) Concentration of Credit Risk 2. Significant Accounting Policies and Recent Accounting Pronouncements (continued): During the years ended December 31, 2022, 2021 and 2020, charterers that individually accounted for more than 10% of the Partnership’s revenues were as follows: Significant Accounting Policies and Recent Accounting Pronouncements - Major Charterers (Table) Charterer 2022 2021 2020 A 43 % 45 % 45 % B 41 % 39 % 39 % C 16 % 16 % 16 % Total 100 % 100 % 100 % (p) Accounting for Revenues and Related Expenses In case that a change in the terms and conditions of a time charter agreement results in a change in the scope of or the consideration for a lease (for example, a change to the terms and conditions of the contract that adds or terminates the right to use one or more vessels or extends or shortens the contractual lease term), the lease is considered modified. The Partnership assesses whether the lease modification should be accounted as a separate contract or not based as per ASC 842-10-25-8. Specifically, the Partnership accounts for a modification to a lease as a separate contract when both of the following conditions are present: a. The modification grants the charterer an additional right of use not included in the original lease (for example, the right to use an additional asset); b. The lease payments increase commensurate with the standalone price for the additional right of use, adjusted for the circumstances of the particular time charter agreement. In case any of the above conditions are not met, the Partnership does not account for the modified lease as a separate contract. Specifically, if the original lease and the modified lease are both classified as operating leases (i.e., no change to lease classification), the Partnership recognizes lease payments to be made under the modified lease, adjusted for any prepaid or accrued hire from the original lease, generally on a straight-line basis over the new lease term (i.e., the remaining lease term from the original lease at the date of modification, adjusted for the additional or terminated periods). Any initial direct costs incurred in connection with the modification are recognized as an expense over the new lease term. Revenue generated from variable lease payments is recognized in the period when changes in facts and circumstances on which the variable lease payments are based occur. The residual or excess amounts from actually collected hire based on the time charter agreement for each period, if any, is classified as deferred or prepaid revenue in the accompanying consolidated balance sheets. 2. Significant Accounting Policies and Recent Accounting Pronouncements (continued): All voyage expenses are expensed as incurred, except for commissions. Commissions paid to brokers are deferred and amortized over the related charter period to the extent revenue has been deferred since commissions are earned as the Partnership’s revenues are earned. Unearned revenue includes cash received prior to the balance sheet date for which all criteria to recognize as revenue have not yet been met as at the balance sheet date and, accordingly, is related to revenue earned after such date. Apart from the agreed hire rate, the owner may be entitled to an additional income, such as ballast bonus, which is considered as reimbursement of owner’s expenses and is recognized together with the lease component over the duration of the charter. The Partnership has made an accounting policy election to recognize the related ballast costs, mainly consisting of bunkers, incurred over the period between the charter party date or the prior redelivery date (whichever is latest) and the delivery date to the charterer, as contract fulfilment costs in accordance with ASC 340-40 and amortized over the charter period. During all years ended December 31, 2022, 2021 and 2020, the amortization of the contract fulfilment costs was $ 0.2 (q) Repairs and Maintenance (r) Earnings/ (Loss) Per Unit no (s) Segment Reporting one 2. Significant Accounting Policies and Recent Accounting Pronouncements (continued): (t) Fair Value Measurements (u) Commitments and Contingencies (v) Accounting for Financial Instruments 2. Significant Accounting Policies and Recent Accounting Pronouncements (continued): (w) Derivative Financial Instruments The interest rate swap did not meet the applicable criteria for hedge accounting under ASC 815, including the criteria specific to a cash flow hedge, therefore the interest rate swap represents an economic hedge. As a result, interest paid or received under the respective undesignated swap agreement is recognized in Gain/ (Loss) on derivative financial instrument (Note 11). The undesignated interest rate swap is recognized in the consolidated financial statements at its fair value, and the gain or loss from changes in the fair value are reported in earnings in the period in which those fair value changes occur in Gain/ (Loss) on derivative financial instrument and any related cash settlements are classified under financing activities in the statement of cash flows. (x) Going concern Recent Accounting Pronouncements Adopted On January 1, 2022, the Partnership adopted ASU No. 2021-04, Earnings Per Share (Topic 260), Debt — Modifications and Extinguishments (Subtopic 470-50), Compensation — Stock Compensation (Topic 718), and Derivatives and Hedging — Contracts in Entity’s Own Equity (Subtopic 815-40) Recent Accounting Pronouncements Adopted (continued): On January 1, 2022, the Partnership adopted ASU No. 2021-05 Leases (Topic 842): Lessors-Certain Leases with Variable Lease Payments Recent Accounting Pronouncements Not Yet Adopted In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform. ASU 2020-04 applies to contracts that reference the London Interbank Offered Rate (“LIBOR”) or another reference rate expected to be terminated because of reference rate reform. In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848). The amendments in this Update clarify that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivative instruments that use an interest rate for margining, discounting, or contract price alignment that is modified as a result of reference rate reform. Amendments in this Update to the expedients and exceptions in Topic 848 capture the incremental consequences of the scope clarification and tailor the existing guidance to derivative instruments affected by the discounting transition. The amendments in this Update apply to all entities that elect to apply the optional guidance in Topic 848. ASU 2020-04 and ASU 2021-10 could be adopted as of March 12, 2020 through December 31, 2022. In December 2022, the FASB issued ASU No. 2022-06, Deferral of the Sunset Date of Reference Rate Reform (Topic 848). Topic 848 provides optional expedients and exceptions for applying GAAP to transactions affected by reference rate (e.g., LIBOR) reform if certain criteria are met, for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. The ASU deferred the sunset date of Topic 848 from December 31, 2022 to December 31, 2024. The ASU is effective as of December 21, 2022 through December 31, 2024. The Partnership will continue to evaluate transactions or contract modifications occurring as a result of reference rate reform and to determine whether to apply the optional guidance. As of December 31, 2022, the Partnership has not yet elected any optional expedients provided in the standard.

Transactions with related parti

Transactions with related parties	12 Months Ended
	Dec. 31, 2022
Related Party Transactions [Abstract]
Transactions with related parties	3. Transactions with related parties During the years ended December 31, 2022, 2021 and 2020, the Partnership incurred the following charges in connection with related party transactions, which are included in the accompanying consolidated statements of income: Transactions with related parties - Statements of Income (Table) Years ended December 31, 2022 2021 2020 Included in voyage expenses – related party Charter hire commissions (a) $ 1,632 $ 1,718 $ 1,719 Included in general and administrative expenses – related party Executive services fee (d) $ 568 $ 638 $ 613 Administrative services fee (e) $ 120 $ 120 $ 120 Management fees-related party Management fees (a) $ 6,203 $ 6,023 $ 6,752 As of December 31, 2022, and December 2021, balances with related parties consisted of the following: Transactions with related parties - Balance Sheet (Table) Year ended December 31, 2022 2021 Assets: Working capital advances granted to the Manager (a) $ — $ 1,144 Security deposits to Manager (a) $ 1,350 $ 1,350 Total assets due from related party $ 1,350 $ 2,494 Liabilities included in Due to related party: Working capital due to Manager (a) $ 836 $ — Executive service charges due to Manager (d) $ 135 $ 155 Administrative service charges due to Manager (e) $ 30 $ 30 Management fees due to Manager (a) $ — $ — Other Partnership expenses due to Manager $ 471 $ 62 Total liabilities due to related party, current $ 1,472 $ 247 3. Transactions with related parties (continued): a) Dynagas Ltd. The Partnership’s vessels originally entered into vessel management agreements with Dynagas Ltd., the Partnership’s Manager (the “Management Agreements”), which terminated on December 31, 2020 2.5 3 On March 3, 2021, the Partnership entered into a new master management agreement (the “Master Agreement”) with Dynagas Ltd. (the “Manager”), which amends and supersedes the previous Management Agreements and reduces the technical management fees payable from $ 3,167 2,750 3 The Master Agreement initially terminates on December 31, 2030 six months The Manager may also terminate the Master Agreement in the event that the Partnership undergoes a change of control, in which case, subject to and pursuant to the terms of the Master Agreement, the Partnership would be required to pay to the Manager an amount equal to the net present value calculated at a discount rate of 5% During the years ended December 31, 2022, 2021 and 2020, each vessel was charged a daily management fee of $ 2.8 2.8 3.1 6,203 6,023 6,752 The Master Agreement and the previous Management Agreements also provide for a commission of 1.25 1,632 1,718 1,719 The Master Agreement and the previous Management Agreements also provide for an advance equal to three months daily management fee. In the case of termination of the Master Agreement prior to its ten year term, by any reason other than Manager’s default, the advance is not refundable. Such advances as of December 31, 2022 and 2021, amounted to $ 1,350 3. Transactions with related parties (continued): In addition, the Manager makes payments for operating expenses with funds provided by the Partnership. As of December 31, 2022 and 2021, an amount of $ 836 1,144 (b) Loan from related party On November 18, 2013, upon the completion of its IPO, the Partnership entered into the $ 30 five years The $30 million Sponsor Facility was extended on November 14, 2018, for an additional term of five years November 2023 No (c) Optional Vessel acquisitions from Sponsor/ Omnibus Agreement At the IPO date, the Partnership and its Sponsor entered into the Omnibus Agreement, as amended and as currently in effect. The amended Omnibus Agreement sets out (i) the terms and the extent the Partnership and the Sponsor may compete with each other, (ii) the procedures to be followed for the exercise of the Partnership’s option to acquire the Optional Vessels (as defined in the Omnibus Agreement), (iii) certain rights of first offer to the Sponsor for the acquisition of LNG carriers from the Partnership, and (iv) the Sponsor’s provisions of certain indemnities in favor of the Partnership. The purchase option periods with regards to the Optional Vessels that were not exercised, have expired unexercised. (d) Executive Services Agreement On March 21, 2014, the Partnership entered into an executive services agreement (the “Executive Services Agreement”) with its Manager with retroactive effect from the IPO closing date, pursuant to which the Manager provides the Partnership the certain services of its executive officers, who report directly to the Board of Directors. Under the Executive Services Agreement, the Manager is entitled to an executive services fee of € 538 568 1,0562 The Executive Services Agreement had an initial term of five years and, on November 18, 2018, was automatically renewed for successive five year terms, unless terminated earlier. 568 638 613 (e) Administrative Services Agreement On December 30, 2014 and with effect from the IPO closing date, the Partnership entered into an administrative services agreement (the “Administrative Services Agreement”) with its Manager, according to which the Partnership is provided with certain financial, accounting, reporting, secretarial and information technology services, for a monthly fee of $ 10 120 days 120

Vessels, net

Vessels, net	12 Months Ended
	Dec. 31, 2022
Vessels Net
Vessels, net	4. Vessels, net : The amounts in the accompanying consolidated balance sheets are analyzed as follows: Vessels, net (Table) Vessel Cost Accumulated Depreciation Net Book Balance December 31, 2020 $ 1,167,909 $ (283,009) $ 884,900 Depreciation — (31,710) (31,710) Balance December 31, 2021 $ 1,167,909 $ (314,719) $ 853,190 Additions 3,721 — 3,721 Depreciation — (31,806) (31,806) Balance December 31, 2022 $ 1,171,630 $ (346,525) $ 825,105 During the year ended December 31, 2022, the Partnership installed a ballast water treatment system (“BWTS”), on three of its vessels. The cost of the BWTS amounted to $ 3,721 As of December 31, 2022, all vessels comprising the Partnership’s fleet were first priority mortgaged as collateral

Long-Term Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2022
Debt Disclosure [Abstract]
Long-Term Debt	5. Long-Term Debt The amounts shown in the accompanying consolidated balance sheets are analyzed as follows: Long-Term Debt - Credit Facilities and Senior Notes (Table) Year Ended December 31, Debt instruments Borrowers-Issuers 2022 2021 $675 Million Credit Facility Fareastern Shipping Limited, Pegasus Shipholding S.A., Lance Shipping S.A., Seacrown Maritime Ltd., Navajo Marine Limited, Solana Holding Ltd. 499,912 567,000 Total debt $ 499,912 $ 567,000 Less deferred financing fees (2,879) (5,034) Total debt, net of deferred finance costs $ 497,033 $ 561,966 Less current portion, net of deferred financing fees $ (46,252) $ (45,947) Long-term debt, net of current portion and deferred financing fees $ 450,781 $ 516,019 $675 Million Senior Secured Term Loan Facility ($675 Million Credit Facility) On September 18, 2019 675 675 470.4 204.6 5. Long-Term Debt (continued): The $675 Million Credit Facility bears interest at U.S. LIBOR 3.00 six LNG vessels five years 20 quarterly The $675 Million Credit Facility contains financial covenants that require the Partnership to: · meet a specified minimum ratio of Cash and Cash Equivalents to Total Liabilities; · meet a specified maximum ratio of Total Liabilities to the Market Value Adjusted Total Assets; and · maintain a minimum liquidity of $ 50 The $675 Million Credit Facility restricts the Partnership from declaring or making any distributions to its common unit-holders while borrowings are outstanding. Scheduled distributions to the preferred unit-holders under the existing Series A Preferred Units and Series B Preferred Units are not restricted provided there is no event of default while the $675 Million Credit Facility remains outstanding. The $675 Million Credit Facility also contains covenants that require the Partnership to: · prevent the direct or indirect use of any of its mortgaged vessels by, or for the benefit of, any Prohibited Person or any person owned or controlled by any Prohibited Person in accordance with country-wide or territory wide Sanctions; · procure that no proceeds, funds or benefit from any activity or dealing with or involving a Prohibited Person will be used in discharging any obligation due to its lenders; · enter into an approved time charter commitment following the cancellation, rescission, frustration or withdrawal from the original charter party, if a vessel is withdrawn from service under a time charter before the time charter’s scheduled expiration, which in the opinion of the Agent of the $675 Million Credit Facility will be under not less favorable terms to the Partnership and the Lenders than those of the original charter party. On April 6, 2022, the U.S. Department of the Treasury’s Office of Foreign Assets Control ("OFAC") designated Amsterdam Trade Bank NV (“ATB”) as a Specially Designated National (“SDN”) pursuant to Executive Order 14024. ATB was among several lenders to the Partnerships’ $675 Million Credit Facility. On April 22, 2022, ATB was declared bankrupt by the District Court of Amsterdam whereby the court appointed certain bankruptcy trustees (“Bankruptcy Trustees”). On July 12, 2022 the Department of the Treasury (Washington, D.C. 20220) issued Licence No. RUSSIA-EO14024-2022-921484-1 to the Bankruptcy Trustees which authorized the Bankruptcy Trustees to engage in all transactions ordinarily incident and necessary to the wind down of transactions with ATB. (“Specific Licence”). The Partnership had not been restricted in meeting its repayment obligations by continuing to make payments of principal and/or interest to the Agent as required under the Facility Agreement. 5. Long-Term Debt (continued): On October 11, 2022 (i) the Partnership made a voluntary prepayment of $ 18,730 1,789 (ii) the principal amount of $ 2,195 (iii) ATB was retired as Arranger and as Lender under the $675 Million Credit Facility; (iv) an amount equal to the prepayment amount was released from the Cash Collateral Account in order to make the prepayment to ATB referred to above; (v) the Agent has applied to the relevant Sanctions Authority in the U.S.A. for the return to the Partnership of the amount which was paid by the Partnership to the Agent between March 2022 and September 2022 in relation to the principal and interest repayments for ATB and which is currently blocked by the Agent due to the application of Sanctions. On the date of repayment, the Partnership recognized a gain on debt extinguishment of $ 2,072 2,072 2,195 123 The amount of $ 1,789 As of December 31, 2022, the Partnership was in compliance with all financial and non-financial covenants prescribed in its $675 Million Credit Facility. As also discussed in Note 1, currently imposed sanctions due to the Russian conflicts with Ukraine, do not affect the Partnership’s compliance with terms imposed by its $675 Million Credit Facility. The annual principal payments for the Partnership’s outstanding $675 Million Credit Facility as at December 31, 2022, required to be made after the balance sheet date were as follows: Long-Term Debt - Principal Payments (Table) Year ending December 31, Amount 2023 48,000 2024 451,912 Total long-term debt $ 499,912 5. Long-Term Debt (continued): The weighted average interest rate on the Partnership’s long-term debt for the years ended December 31, 2022, 2021 and 2020, was 4.65 3.1 3.7 Total interest incurred on long-term debt for the years ended December 31, 2022, 2021 and 2020, amounted to $ 25,661 18,762 24,146 Commitment fees incurred for all years ended December 31, 2022, 2021 and 2020, amounted to nil. Such fees are included in Interest and finance costs (Note 10) in the accompanying consolidated statements of income. 0

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2022
Fair Value Measurements
Fair Value Measurements	6. Fair Value Measurements The following methods and assumptions were used to estimate the fair value of each class of financial instruments: § Cash and cash equivalents, trade accounts receivable, amounts due from/to related parties and trade accounts payable: s 922 1,350 § Long-term debt: § Derivative financial instrument A fair value hierarchy that prioritizes the inputs used to measure fair value has been established by Generally Accepted Accounting Principles. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurement) and the lowest priority to unobservable inputs (Level 3 measurement). This hierarchy requires entities to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows: Level 1: Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities; Level 2: Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active or other inputs that are observable or can be corroborated by observable market data; and Level 3: Unobservable inputs that are supported by little or no market activity and that are significant to the determination of the fair value of the assets or liabilities. The following table summarizes the hierarchy for determining and disclosing the fair value of assets and liabilities by valuation technique on a recurring basis as of the valuation date. 6. Fair Value Measurements (continued): Fair Value Measurements - Recurring Measurements (Table) Significant Other Observable Inputs (Level 2) Recurring measurements: December 31, December 31, Interest rate swaps $ 34,877 $ 8,824

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	7. Commitments and Contingencies (a) Long-term leases: The Partnership employs its vessels under time charter contracts. Certain of its time charters provide for variable lease payments, escalating lease payments, charterers’ options to extend the lease terms, termination clauses and charterers’ options to purchase the underlying assets. The Partnership, in order to calculate future minimum contracted lease payments, has assessed all the relevant factors that create an economic incentive for the lessee to be reasonably certain to exercise lease renewal, termination or purchase options. As at December 31, 2022, two of the Partnership’s time charters contain escalating time charters contain both fixed lease and variable lease payments Specifically, as at December 31, 2022 under two of its time charters, the charterer has the option to extend the original lease term by three consecutive periods of five years The Partnership assessed the respective termination clauses and concluded that the lease term is not affected. In addition, under certain time charters and, upon certain circumstances triggering a sanctions event, as defined therein, the charterers have the option to purchase the vessels unless the Partnership can remediate such event. The Partnership’s maturity analysis of future minimum contracted lease payments (excluding variable lease payments) under its non-cancelable long-term time charter contracts, as of December 31, 2022, gross of brokerage commissions, without taking into consideration any assumed off-hire days (including those arising out of periodical class survey requirements), is as analyzed below. 7. Commitments and Contingencies (continued): Commitments and Contingencies - Charter Hire (Table) Year ending December 31, Amount 2023 131,672 2024 146,043 2025 141,818 2026 112,826 2027 86,359 2028 and thereafter 270,126 Total $ 888,844 (b) Legal Proceedings: Various claims, suits, and complaints, including those involving government regulations and product liability, arise in the ordinary course of the shipping business. In addition, losses may arise from disputes with charterers, agents, insurance and other claims with suppliers relating to the operations of the Partnership’s vessels. Currently, management is not aware of any such claims not covered by insurance or contingent liabilities which should be disclosed (other than that referred below) or for which a provision should be established in the accompanying consolidated financial statements. The Partnership accrues for the cost of environmental liabilities when management becomes aware that a liability is probable and is then able to reasonably estimate the probable exposure. Currently, management is not aware of any such claims or contingent liabilities, which should be disclosed, or for which a provision should be established in the accompanying consolidated financial statements. The Partnership is covered in the event of any liabilities associated with the individual vessels’ actions up to the maximum limits as provided for by the Protection and Indemnity (P&I) Clubs, members of the International Group of P&I Clubs. On May 16, 2019, a purported stockholder of the Partnership filed a putative class action lawsuit against the Partnership and certain related entities and individual officers and directors of the Partnership in the United States District Court for the Southern District of New York (Case No.19- cv-04512). The complaint purported to be brought on behalf of shareholders who purchased the common stock of the Partnership between February 16, 2018 and March 21, 2019. The Complaint generally alleged that the defendants violated Sections 10(b) and/or 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder by making allegedly false and/or misleading statements regarding, among other matters, new charter agreements that the Partnership entered into with various energy companies and the Partnership’s expectations about its ability to sustain its quarterly distribution. On August 19, 2019, the Court appointed a group of shareholders as Lead Plaintiffs in the action, who filed an amended complaint on September 26, 2019. The amended complaint made allegations similar to those in the original complaint, extended the class period (December 21, 2017 through March 21, 2019), added as defendants three additional directors of the Partnership and the underwriters of the Partnership’s Series B Preferred Units Offering, and asserted new claims under Section 20A of the Securities Exchange Act of 1934 on behalf of plaintiffs who acquired Partnership securities or sold put options contemporaneously with the Series B Preferred Units Offering, and under Sections 11, 12(a)(2) and 15 of the Securities Act of 1933 based on allegedly false and/or misleading statements in the offering documents for the Series B Preferred Units Offering. On May 21, 2021, the parties executed a settlement agreement which was finally approved by the Court by order dated November 5, 2021. In July 2021, the settlement was covered in full by the Partnership’s directors’ and officers’ insurance. The Partnership, related entity defendants, and individual defendants continue to believe that the claims asserted against them in the litigation were without merit and the Partnership had not conceded or admitted any wrongdoing or liability, and was not conceding any wrongdoing or liability in agreeing to settle the litigation. 7. Commitments and Contingencies (continued): (c) Technical and Commercial Management Agreement: As further disclosed in Note 3, the Partnership has contracted with Dynagas Ltd. for the provision of commercial, administrative and technical management of its vessels pursuant to the Master Agreement. a) For the commercial services provided under the Master Agreement, the Partnership pays a commission of 1.25 11,111 b) Management fees for the period from January 1, 2023 to the date of the expiration of the agreements on December 31, 2030, adjusted for the 3% annual inflation in accordance with the terms of the Management Agreements 56,854

Partners_ Equity

Partners’ Equity	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Partners’ Equity	8. Partners’ Equity Series A Preferred Units: On July 20, 2015, the Partnership concluded an underwritten public offering of 3,000,000 9 25 72.3 2.4 0.3 Series B Preferred Units: On October 23, 2018, the Partnership concluded the underwritten public offering of 2,200,000 25 53 2 Concurrently with the conclusion of the Series B Preferred Units Public Offering, the Partnership entered into the Limited Partnership Agreement in order to, among others, conform its provisions to the terms and provisions related to the issuance of the Series B Preferred Units and to remove references to subordinated units and subordinated period that are no longer in effect. As of December 31, 2022, the Partnership had 36,802,247 15,595,000 3,000,000 2,200,000 35,526 Common and General Partner unit distribution provisions: The Partnership pays distributions in the following manner: • first • second 8. Partners’ Equity (continued): The percentage allocations of available cash from operating surplus among the common unitholders, the General Partner and the holders of the incentive distribution rights up to the various target distribution levels are illustrated below. The percentage interests shown for the common unitholders, the General Partner and the holders of the incentive distribution rights for the minimum quarterly distribution are also applicable to quarterly distribution amounts that are less than the minimum quarterly distribution. The percentage interests shown for our General Partner include its 0.1% General Partner interest only and assumes that our General Partner has contributed any capital necessary to maintain its 0.1% General Partner interest. Under the Limited Partnership Agreement, the holder of the incentive distribution rights in the Partnership, which is currently the General Partner, has the right to receive an increasing percentage of cash distributions after the first target distribution level. Partners’ Equity (Table) Total Quarterly Distribution Target Amount Unitholders General Partner Holders of IDRs Minimum Quarterly Distribution $0.365 99.9 % 0.1 % 0.0 % First Target Distribution up to $ 0.420 99.9 % 0.1 % 0.0 % Second Target Distribution above $ 0.420 0.456 85.0 % 0.1 % 14.9 % Third Target Distribution Above $ 0.456 0.548 75.0 % 0.1 % 24.9 % Thereafter above $ 0.548 50.0 % 0.1 % 49.9 % On April 18, 2018 0.25 0.4225 May 3, 2018 April 26, 2018 On January 25, 2019 0.0625 0.25 February 14, 2019 February 7, 2019 On September 26, 2019 the Partnership announced that pursuant to the closing of the $675 Million Credit Facility (Note 5), the Partnership is prohibited from paying distribution to its common unit-holders while borrowings are outstanding under the $675 Million Credit Facility. As the quarterly distributions with respect to fiscal year 2019 were below $ 0.365 Preferred Units distribution and redemption provisions: Distributions on the Series A Preferred Units are cumulative from the date of original issue and are payable quarterly on February 12, May 12, August 12 and November 12, of each year, when, as and if declared by the Partnership’s Board of Directors out of amounts legally available for such purpose. Distributions are payable at a distribution rate of 9 Any time on or after August 12, 2020, the Series A Preferred Units may be redeemed, in whole or in part, at the Partnership’s option, out of amounts legally available for such purpose, at a redemption price of $ 25 8. Partners’ Equity (continued): Distributions on the Series B Preferred Units are cumulative from the date of original issue and are payable quarterly on February 22, May 22, August 22 and November 22, of each year, when, as and if declared by the Partnership’s Board of Directors out of amounts legally available for such purpose. Furthermore, distributions on the Series B Preferred Units are payable (i) from and including the original issue date to, but excluding, November 22, 2023 at a fixed rate equal to 8.75 three-month LIBOR 5.593 At any time on or after November 22, 2023, the Series B Preferred Units may be redeemed, in whole or in part, at the Partnership’s option, out of amounts available for such purpose, at a redemption price of $ 25 The Series A Preferred Units and the Series B Preferred Units represent perpetual equity interests in the Partnership, unlike the Partnership’s indebtedness, do not give rise to a claim for payment of a principal amount at a particular date. The Series A Preferred Units rank pari passu with the Series B Preferred Units. Both the Series A Preferred Units and the Senior B Preferred Units rank senior to the Partnership’s common units and to each other class or series of limited partner interests or other equity established after the original issue date of the Series A Preferred Units and the Series B Preferred Units that is not expressly made senior to or on a parity with the Series A Preferred Units and the Series B Preferred Units as to payment of distributions. The Series A Preferred Units and the Series B Preferred Units are rank junior to all of the Partnership’s existing and future indebtedness. The interests of the holders of Series A Preferred Units or Series B Preferred Units could be diluted by the issuance of additional preferred units, including additional Series A Preferred units or Series B Preferred Units, and by other transactions. Common unit distributions: No quarterly cash distributions to Common unitholders were made with respect to fiscal year 2022 and 2021. Series A Preferred unit distributions: On January 20, 2022 0.5625 February 14, 2022 February 7, 2022 On April 20, 2022 0.5625 May 12, 2022 May 5, 2022 On July 21, 2022 0.5625 August 12, 2022 August 5, 2022 On October 21, 2022 0.5625 November 14, 2022 November 7, 2022 8. Partners’ Equity (continued): Series B Preferred unit distributions: On January 31, 2022 0.546875 February 22, 2022 February 14, 2022 On April 29, 2022 0.546875 May 23, 2022 May 16, 2022 On July 29, 2022 0.546875 August 22, 2022 August 15, 2022 On October 31, 2022 0.546875 November 22, 2022 November 15, 2022 General Partner Distributions: During all years ended December 31, 2022, 2021 and 2020, the Partnership paid to its General Partner and holder of the incentive distribution rights in the Partnership an amount of nil. 0 At the market equity program On July 2, 2020, the Partnership entered into an ATM Sales Agreement (the “Original Agreement”) for the offer and sale of common units representing limited partnership interests, having an aggregate offering price of up to $30.0 million. On August 19, 2020, the Partnership terminated the above mentioned ATM Sales Agreement and entered into an amended and restated ATM Sales Agreement (the “A&R Sales Agreement”), for the offer and sale of common units representing limited partnership interests, having an aggregate offering price of up to $ 30 During the year ended December 31, 2021, the Partnership issued and sold 1,189,667 3.3 122,580 0.3

Earnings_(Loss) per Unit

Earnings/(Loss) per Unit	12 Months Ended
	Dec. 31, 2022
Earnings Per Unit [Abstract]
Earnings/(Loss) per Unit	9. Earnings/(Loss) per Unit The Partnership calculates earnings/ (loss) per unit by allocating distributed and undistributed net income/ (losses) for each period to common and general partner units, after adjusting for the effect of preferred distributions, only to the extent that they are earned. Any undistributed earnings for the period are allocated to the various unitholders based on the distribution waterfall for cash available for distribution specified in the Limited Partnership Agreement, as generally described in Note 8 above. Where distributions relating to the period are in excess of earnings, the deficit is also allocated according to the cash distribution model. The sum of the distributed amounts and the allocation of the undistributed earnings or deficit to each class of unitholders is divided by the weighted average number of units outstanding during the period. Diluted earnings per unit, if applicable, reflects the potential dilution that could occur if potentially dilutive instruments were exercised, resulting in the issuance of additional units that would then share in the Partnership’s net earnings. The Partnership had no dilutive instruments in the years ended December 31, 2022, 2021 and 2020. 9. Earnings/(Loss) per Unit (continued): The calculations of the basic and diluted earnings per common unit are presented below: Earnings/(Loss) per Unit (Table) Year ended December 31, 2022 2021 2020 Partnership’s Net income $ 54,010 $ 53,260 $ 34,052 Less: Net Income attributable to preferred unitholders 11,563 11,563 11,563 General Partner’s interest in Net Income 42 41 23 Net income/(loss) attributable to common unitholders $ 42,405 $ 41,656 $ 22,466 Weighted average number of common units outstanding, basic and diluted 36,802,247 36,504,120 35,546,823 Earnings/ (Losses) per common unit, basic and diluted $ 1.15 $ 1.14 $ 0.63

Interest and Finance Costs

Interest and Finance Costs	12 Months Ended
	Dec. 31, 2022
Interest And Finance Costs
Interest and Finance Costs	10. Interest and Finance Costs The amounts in the accompanying consolidated statements of income are analyzed as follows: Interest and Finance Costs (Table) Year ended December 31, 2022 2021 2020 Interest expense (Note 5) $ 25,661 $ 18,762 $ 24,146 Amortization of deferred financing fees 2,032 2,285 2,527 Write-off of deferred financing fees — — — Commitment fees (Note 5) — — — Other 218 373 385 Total $ 27,911 $ 21,420 $ 27,058

Derivative financial instrument

Derivative financial instrument	12 Months Ended
	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative financial instrument	11. Derivative financial instrument On May 7, 2020, the Partnership entered into a floating to fixed interest rate swap transaction for the purpose of managing its exposure to LIBOR variability that the Partnership has under the $675 Million Credit Facility. The swap transaction, which is effective from June 29, 2020 fixed 3-month LIBOR rate 0.41 September 2024 As of December 31, 2022 and 2021, the outstanding notional amount of Partnership’s interest rate swap was $ 519 567 34,877 8,824 11. Derivative financial instrument (continued): As of December 31, 2022 and 2021, the Partnership recognized a gain on derivative financial instrument of $ 33.7 10.1 The realized gain/ (loss) on non-hedging interest rate swaps included in Gain/ (Loss) on derivative financial instrument which is presented in the Consolidated Statements of Income, amounted to $ 7.4 1.4 Tabular Disclosure of Derivatives Location Derivatives are recorded in the balance sheet on a net basis by counterparty when a legal right of setoff exists. The following tables present information with respect to the fair values of the derivative instrument reflected in the balance sheet on a gross basis by transaction. The tables also present information with respect to losses on derivative positions reflected in the Statement of Comprehensive Income. Derivative Instruments not designated as hedging instruments – Balance Sheet Location Derivative Financial Instruments - Not designated as Hedging Instruments - Balance Sheet Location (Table) 2022 2021 Derivative Balance Sheet Location Assets Liabilities Assets Liabilities Interest rate swap Derivative financial Instruments, Current $ 22,544 — $ 555 — Interest rate swap Derivative financial Instruments, non- Current 12,333 — 8,269 — Total $ 34,877 — $ 8,824 — Derivatives Instruments not designated as Hedging Instruments – Net effect on the Consolidated Statements of Comprehensive Income Derivative Financial Instruments - Not designated as Hedging Instruments - Net effect on the Consolidated Statements of Comprehensive Income (Table) Net Realized and Unrealized Gain /(Loss) Recognized on Statement of Comprehensive Income Location Derivative Amount 2022 2021 Interest rate swap Gain /(Loss) on derivative instruments $ 33,655 $ 10,104 Total $ 33,655 $ 10,104

Taxes

Taxes	12 Months Ended
	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Taxes	12. Taxes Under the laws of the countries of the Partnership and its subsidiaries’ incorporation and / or vessels’ registration, the Partnership and its subsidiaries are not subject to tax on international shipping income; however, they are subject to registration and tonnage taxes, which are included in Vessel operating expenses in the accompanying consolidated statements of income. In addition, effective January 1, 2013, each foreign flagged vessel managed in Greece by Greek or foreign ship management companies is subject to Greek tonnage tax, under the laws of the Hellenic Republic. The technical manager of the Partnership’s vessels, Dynagas Ltd., an affiliate (Note 3(a)) which is established in Greece under Greek Law 89/67 is responsible for the filing and payment of the respective tonnage tax on behalf of the Partnership. These tonnage taxes for the years ended December 31, 2022, 2021 and 2020, amounted $ 338 317 344 12. Taxes (continued): Pursuant to the Internal Revenue Code of the United States (the “Code”), U.S. source income from the international operations of ships is generally exempt from U.S. tax if the Partnership operating the ships meets both of the following requirements: (a) the Partnership is organized in a foreign country that grants an equivalent exception to corporations organized in the United States and exempts the type of income earned by the vessel owning Partnership and (b) either (i) more than 50% of the value of the Partnership’s stock is owned, directly or indirectly, by individuals who are “residents” of the Partnership’s country of organization or of another foreign country that grants an “equivalent exemption” to corporations organized in the United States (50% Ownership Test) or (ii) the Partnership’s stock is “primarily and regularly traded on an established securities market” in its country of organization, in another country that grants an “equivalent exemption” to United States corporations, or in the United States (Publicly-Traded Test). Additionally, the Partnership must meet all of the documentation requirements as outlined in the regulations. The Partnership and each of its subsidiaries expects to qualify for this statutory tax exemption for the 2022, 2021 and 2020 taxable years, and the Partnership takes this position for United States federal income tax return reporting purposes. In the absence of an exemption under Section 883, based on its U.S. source shipping income, for 2022, 2021 and 2020, the Partnership would be subject to U.S. federal income tax of approximately $ 3 235 65

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2022
Subsequent Events [Abstract]
Subsequent Events	13. Subsequent Events (a) Quarterly Series A Preferred unit cash distribution: January 20, 2023 0.5625 February 13, 2023 February 6, 2023 (b) Quarterly Series B Preferred unit cash distribution: January 31, 2023 0.546875 February 22, 2023 February 15, 2023 (c) Partial Prepayment of the $675 Million Credit Facility: (i) to make a voluntary prepayment of $ 31.3 (ii) the removal of the requirement for the maintenance of $31.3 million in the Cash Collateral Account. (d) Quarterly Series A Preferred unit cash distribution April 20, 2023 0.5625 May 12, 2023 May 5, 2023

Significant Accounting Polici_2

Significant Accounting Policies and Recent Accounting Pronouncements (Policies)	12 Months Ended
	Dec. 31, 2022
Accounting Policies [Abstract]
Principles of Consolidation	(a) Principles of Consolidation : The accompanying consolidated financial statements have been prepared in accordance with Generally Accepted Accounting Principles in the United States of America (“U.S. GAAP”). The consolidated financial statements include the accounts of Dynagas Partners and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated upon consolidation. Dynagas Partners, as the holding company, determines whether it has a controlling financial interest in an entity by first evaluating whether the entity is a voting interest entity or a variable interest entity. Under Financial Accounting Standards Board (“FASB”) Accounting Standard Codification (“ASC”) 810 “Consolidation”, a voting interest entity is an entity in which the total equity investment at risk is deemed sufficient to absorb the expected losses of the entity, the equity holders have all the characteristics of a controlling financial interest and the legal entity is structured with substantive voting rights. The holding company consolidates voting interest entities in which it owns all, or at least a majority (generally, greater than 50%) of the voting interest. Variable interest entities (“VIE”) are entities, as defined under ASC 810, that in general either have equity investors with non-substantive voting rights or that have equity investors that do not provide sufficient financial resources for the entity to support its activities. The holding company has a controlling financial interest in a VIE and is, therefore, the primary beneficiary of a VIE if it has the power to direct the activities of a VIE that most significantly impact the VIE’s economic performance and the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. A VIE should have only one primary beneficiary which is required to consolidate the VIE. A VIE may not have a primary beneficiary if no party meets the criteria described above. The Partnership evaluates all arrangements that may include a variable interest in an entity to determine if it is the primary beneficiary, and would therefore be required to include assets, liabilities and operations of a VIE in its consolidated financial statements. As of the years ended December 31, 2022, 2021 and 2020, no such interests existed.
Use of Estimates	(b) Use of Estimates : The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Other Comprehensive Income	(c) Other Comprehensive Income : The Partnership follows the provisions of ASC 220, “Comprehensive Income”, which requires separate presentation of certain transactions which are recorded directly as components of equity. The Partnership has no such transactions which affect other comprehensive income and accordingly, for the years ended December 31, 2022, 2021 and 2020, comprehensive income equaled net income. 2. Significant Accounting Policies and Recent Accounting Pronouncements (continued):
Foreign Currency Translation	(d) Foreign Currency Translation
Cash and Cash Equivalents	(e) Cash and Cash Equivalents : The Partnership considers highly liquid investments, such as time deposits with an original maturity of three months or less, to be cash equivalents.
Restricted cash	(f) Restricted cash
Trade Accounts Receivable	(g) Trade Accounts Receivable : The amount shown as trade accounts receivable at each balance sheet date, mainly includes receivables from charterers for hire from lease agreements, net of any provision for doubtful accounts, if any. At each balance sheet date, all potentially uncollectible accounts are assessed individually for purposes of determining the appropriate provision for doubtful accounts primarily based on the aging of such balances and any amounts in dispute. Operating lease receivables under ASC 842 are not in scope of ASC 326 for assessment of credit loss. ASC 842 requires lessors to evaluate the collectability of all lease payments. If collection of all operating lease payments, plus any amount necessary to satisfy a residual value guarantee, is not probable (either at lease commencement or after the commencement date), lease income is constrained to the lesser of cash collected or lease income reflected on a straight-line or another systematic basis, plus variable rent when it becomes accruable. Provision for doubtful accounts as of December 31, 2022 and 2021, was nil. 0
Inventories	(h) Inventories
Insurance Claims	(i) Insurance Claims 2. Significant Accounting Policies and Recent Accounting Pronouncements (continued):
Vessels, Net	(j) Vessels, Net straight-line 0.500 35 years
Impairment of Long-Lived Assets	(k) Impairment of Long-Lived Assets The projected net operating cash flows are determined by considering the charter revenues from existing time charters for the fixed fleet days and by estimating charter rates for the unfixed days. Expected outflows for scheduled vessel maintenance and vessel operating expenses are based on the Partnership’s budget by using historical data, which is adjusted annually with the assumption of the average annual inflation rate prevailing at the time of the impairment test. In developing the estimate for the effective fleet utilization, the Partnership takes into account the period(s) each vessel is expected to undergo her scheduled maintenance (dry-docking and special surveys) and each vessel’s loss of hire resulting from repositioning or other conditions. In developing estimates for the remaining estimated useful lives of the current fleet and scrap values, the Partnership utilizes methods, which are identical to those employed as part of the Partnership’s depreciation policy. As and for each of the years ended December 31, 2022, 2021 and 2020, the Partnership incurred no 2. Significant Accounting Policies and Recent Accounting Pronouncements (continued):
Intangible Assets/Liabilities Related to Time Charters Acquired	(l) Intangible Assets/Liabilities Related to Time Charters Acquired
Accounting for Special Survey and Dry-Docking Costs	(m) Accounting for Special Survey and Dry-Docking Costs five years 2.5
Financing Costs	(n) Financing Costs
Concentration of Credit Risk	(o) Concentration of Credit Risk 2. Significant Accounting Policies and Recent Accounting Pronouncements (continued): During the years ended December 31, 2022, 2021 and 2020, charterers that individually accounted for more than 10% of the Partnership’s revenues were as follows: Significant Accounting Policies and Recent Accounting Pronouncements - Major Charterers (Table) Charterer 2022 2021 2020 A 43 % 45 % 45 % B 41 % 39 % 39 % C 16 % 16 % 16 % Total 100 % 100 % 100 %
Accounting for Revenues and Related Expenses	(p) Accounting for Revenues and Related Expenses In case that a change in the terms and conditions of a time charter agreement results in a change in the scope of or the consideration for a lease (for example, a change to the terms and conditions of the contract that adds or terminates the right to use one or more vessels or extends or shortens the contractual lease term), the lease is considered modified. The Partnership assesses whether the lease modification should be accounted as a separate contract or not based as per ASC 842-10-25-8. Specifically, the Partnership accounts for a modification to a lease as a separate contract when both of the following conditions are present: a. The modification grants the charterer an additional right of use not included in the original lease (for example, the right to use an additional asset); b. The lease payments increase commensurate with the standalone price for the additional right of use, adjusted for the circumstances of the particular time charter agreement. In case any of the above conditions are not met, the Partnership does not account for the modified lease as a separate contract. Specifically, if the original lease and the modified lease are both classified as operating leases (i.e., no change to lease classification), the Partnership recognizes lease payments to be made under the modified lease, adjusted for any prepaid or accrued hire from the original lease, generally on a straight-line basis over the new lease term (i.e., the remaining lease term from the original lease at the date of modification, adjusted for the additional or terminated periods). Any initial direct costs incurred in connection with the modification are recognized as an expense over the new lease term. Revenue generated from variable lease payments is recognized in the period when changes in facts and circumstances on which the variable lease payments are based occur. The residual or excess amounts from actually collected hire based on the time charter agreement for each period, if any, is classified as deferred or prepaid revenue in the accompanying consolidated balance sheets. 2. Significant Accounting Policies and Recent Accounting Pronouncements (continued): All voyage expenses are expensed as incurred, except for commissions. Commissions paid to brokers are deferred and amortized over the related charter period to the extent revenue has been deferred since commissions are earned as the Partnership’s revenues are earned. Unearned revenue includes cash received prior to the balance sheet date for which all criteria to recognize as revenue have not yet been met as at the balance sheet date and, accordingly, is related to revenue earned after such date. Apart from the agreed hire rate, the owner may be entitled to an additional income, such as ballast bonus, which is considered as reimbursement of owner’s expenses and is recognized together with the lease component over the duration of the charter. The Partnership has made an accounting policy election to recognize the related ballast costs, mainly consisting of bunkers, incurred over the period between the charter party date or the prior redelivery date (whichever is latest) and the delivery date to the charterer, as contract fulfilment costs in accordance with ASC 340-40 and amortized over the charter period. During all years ended December 31, 2022, 2021 and 2020, the amortization of the contract fulfilment costs was $ 0.2
Repairs and Maintenance	(q) Repairs and Maintenance
Earnings/ (Loss) Per Unit	(r) Earnings/ (Loss) Per Unit no
Segment Reporting	(s) Segment Reporting one 2. Significant Accounting Policies and Recent Accounting Pronouncements (continued):
Fair Value Measurements	(t) Fair Value Measurements
Commitments and Contingencies	(u) Commitments and Contingencies
Accounting for Financial Instruments	(v) Accounting for Financial Instruments 2. Significant Accounting Policies and Recent Accounting Pronouncements (continued):
Derivative Financial Instruments	(w) Derivative Financial Instruments The interest rate swap did not meet the applicable criteria for hedge accounting under ASC 815, including the criteria specific to a cash flow hedge, therefore the interest rate swap represents an economic hedge. As a result, interest paid or received under the respective undesignated swap agreement is recognized in Gain/ (Loss) on derivative financial instrument (Note 11). The undesignated interest rate swap is recognized in the consolidated financial statements at its fair value, and the gain or loss from changes in the fair value are reported in earnings in the period in which those fair value changes occur in Gain/ (Loss) on derivative financial instrument and any related cash settlements are classified under financing activities in the statement of cash flows.
Going concern	(x) Going concern
Recent Accounting Pronouncements Adopted	Recent Accounting Pronouncements Adopted On January 1, 2022, the Partnership adopted ASU No. 2021-04, Earnings Per Share (Topic 260), Debt — Modifications and Extinguishments (Subtopic 470-50), Compensation — Stock Compensation (Topic 718), and Derivatives and Hedging — Contracts in Entity’s Own Equity (Subtopic 815-40) Recent Accounting Pronouncements Adopted (continued): On January 1, 2022, the Partnership adopted ASU No. 2021-05 Leases (Topic 842): Lessors-Certain Leases with Variable Lease Payments Recent Accounting Pronouncements Not Yet Adopted In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform. ASU 2020-04 applies to contracts that reference the London Interbank Offered Rate (“LIBOR”) or another reference rate expected to be terminated because of reference rate reform. In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848). The amendments in this Update clarify that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivative instruments that use an interest rate for margining, discounting, or contract price alignment that is modified as a result of reference rate reform. Amendments in this Update to the expedients and exceptions in Topic 848 capture the incremental consequences of the scope clarification and tailor the existing guidance to derivative instruments affected by the discounting transition. The amendments in this Update apply to all entities that elect to apply the optional guidance in Topic 848. ASU 2020-04 and ASU 2021-10 could be adopted as of March 12, 2020 through December 31, 2022. In December 2022, the FASB issued ASU No. 2022-06, Deferral of the Sunset Date of Reference Rate Reform (Topic 848). Topic 848 provides optional expedients and exceptions for applying GAAP to transactions affected by reference rate (e.g., LIBOR) reform if certain criteria are met, for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. The ASU deferred the sunset date of Topic 848 from December 31, 2022 to December 31, 2024. The ASU is effective as of December 21, 2022 through December 31, 2024. The Partnership will continue to evaluate transactions or contract modifications occurring as a result of reference rate reform and to determine whether to apply the optional guidance. As of December 31, 2022, the Partnership has not yet elected any optional expedients provided in the standard.

Basis of Presentation and Gen_2

Basis of Presentation and General Information (Tables)	12 Months Ended
	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and General Information - Vessel Owning Subsidiaries (Table)	Vessel Owning Subsidiaries: Basis of Presentation and General Information - Vessel Owning Subsidiaries (Table) Company Name Country of incorporation/ formation Vessel Name Delivery date from shipyard Delivery date to Partnership Cbm Capacity Pegasus Shipholding S.A. (“Pegasus”) Marshall Islands Clean Energy March 2007 October 2013 149,700 Lance Shipping S.A. (“Lance”) Marshall Islands Ob River July 2007 October 2013 149,700 Seacrown Maritime Ltd. (“Seacrown”) Marshall Islands Amur River January 2008 October 2013 149,700 Fareastern Shipping Limited (“Fareastern”) Malta Arctic Aurora July 2013 June 2014 155,000 Navajo Marine Limited (“Navajo”) Marshall Islands Yenisei River July 2013 September 2014 155,000 Solana Holding Ltd. (“Solana”) Marshall Islands Lena River October 2013 December 2015 155,000
Basis of Presentation and General Information - Non-Vessel Owning Subsidiaries (Table)	Non-Vessel Owning Subsidiaries: Basis of Presentation and General Information - Non-Vessel Owning Subsidiaries (Table) Company Name Country of incorporation/formation Purpose of incorporation Dynagas Equity Holding Limited (“Dynagas Equity”) Marshall Islands Holding company that owns all of the outstanding share capital of Arctic LNG Carriers Ltd. (“Arctic LNG”). Dynagas Operating GP LLC (“Dynagas Operating GP”) Marshall Islands Limited Liability Company in which the Partnership holds a 100% membership interest and which has 100 Dynagas Operating LP (“Dynagas Operating”) Marshall Islands Limited partnership in which the Partnership holds a 100 Dynagas Finance Inc. Marshall Islands Wholly owned subsidiary of the Partnership whose activities were limited to the co-issuance of the 2019 Notes discussed under Note 5 and engaging in other activities incidental thereto. Arctic LNG Carriers Ltd. Marshall Islands Wholly owned subsidiary of the Partnership which is directly wholly owned by Dynagas Equity and which owns all of the issued and outstanding share capital of Pegasus, Lance, Seacrown, Fareastern, Navajo, Solana and Dynagas Finance LLC. Dynagas Finance LLC Delaware Wholly owned subsidiary of Arctic LNG and co-borrower of the Partnership’s Term Loan B discussed under Note 5.

Significant Accounting Polici_3

Significant Accounting Policies and Recent Accounting Pronouncements (Tables)	12 Months Ended
	Dec. 31, 2022
Accounting Policies [Abstract]
Significant Accounting Policies and Recent Accounting Pronouncements - Major Charterers (Table)	Significant Accounting Policies and Recent Accounting Pronouncements - Major Charterers (Table) Charterer 2022 2021 2020 A 43 % 45 % 45 % B 41 % 39 % 39 % C 16 % 16 % 16 % Total 100 % 100 % 100 %

Transactions with related par_2

Transactions with related parties (Tables)	12 Months Ended
	Dec. 31, 2022
Related Party Transactions [Abstract]
Transactions with related parties - Statements of Income (Table)	Transactions with related parties - Statements of Income (Table) Years ended December 31, 2022 2021 2020 Included in voyage expenses – related party Charter hire commissions (a) $ 1,632 $ 1,718 $ 1,719 Included in general and administrative expenses – related party Executive services fee (d) $ 568 $ 638 $ 613 Administrative services fee (e) $ 120 $ 120 $ 120 Management fees-related party Management fees (a) $ 6,203 $ 6,023 $ 6,752
Transactions with related parties - Balance Sheet (Table)	Transactions with related parties - Balance Sheet (Table) Year ended December 31, 2022 2021 Assets: Working capital advances granted to the Manager (a) $ — $ 1,144 Security deposits to Manager (a) $ 1,350 $ 1,350 Total assets due from related party $ 1,350 $ 2,494 Liabilities included in Due to related party: Working capital due to Manager (a) $ 836 $ — Executive service charges due to Manager (d) $ 135 $ 155 Administrative service charges due to Manager (e) $ 30 $ 30 Management fees due to Manager (a) $ — $ — Other Partnership expenses due to Manager $ 471 $ 62 Total liabilities due to related party, current $ 1,472 $ 247

Vessels, net (Tables)

Vessels, net (Tables)	12 Months Ended
	Dec. 31, 2022
Vessels Net
Vessels, net (Table)	Vessels, net (Table) Vessel Cost Accumulated Depreciation Net Book Balance December 31, 2020 $ 1,167,909 $ (283,009) $ 884,900 Depreciation — (31,710) (31,710) Balance December 31, 2021 $ 1,167,909 $ (314,719) $ 853,190 Additions 3,721 — 3,721 Depreciation — (31,806) (31,806) Balance December 31, 2022 $ 1,171,630 $ (346,525) $ 825,105

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2022
Debt Disclosure [Abstract]
Long-Term Debt - Credit Facilities and Senior Notes (Table)	Long-Term Debt - Credit Facilities and Senior Notes (Table) Year Ended December 31, Debt instruments Borrowers-Issuers 2022 2021 $675 Million Credit Facility Fareastern Shipping Limited, Pegasus Shipholding S.A., Lance Shipping S.A., Seacrown Maritime Ltd., Navajo Marine Limited, Solana Holding Ltd. 499,912 567,000 Total debt $ 499,912 $ 567,000 Less deferred financing fees (2,879) (5,034) Total debt, net of deferred finance costs $ 497,033 $ 561,966 Less current portion, net of deferred financing fees $ (46,252) $ (45,947) Long-term debt, net of current portion and deferred financing fees $ 450,781 $ 516,019
Long-Term Debt - Principal Payments (Table)	Long-Term Debt - Principal Payments (Table) Year ending December 31, Amount 2023 48,000 2024 451,912 Total long-term debt $ 499,912

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2022
Derivative, Fair Value, Net [Abstract]
Fair Value Measurements - Recurring Measurements (Table)	Fair Value Measurements - Recurring Measurements (Table) Significant Other Observable Inputs (Level 2) Recurring measurements: December 31, December 31, Interest rate swaps $ 34,877 $ 8,824

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies - Charter Hire (Table)	Commitments and Contingencies - Charter Hire (Table) Year ending December 31, Amount 2023 131,672 2024 146,043 2025 141,818 2026 112,826 2027 86,359 2028 and thereafter 270,126 Total $ 888,844

Partners_ Equity (Tables)

Partners’ Equity (Tables)	12 Months Ended
	Dec. 31, 2022
Equity [Abstract]
Partners’ Equity (Table)	Partners’ Equity (Table) Total Quarterly Distribution Target Amount Unitholders General Partner Holders of IDRs Minimum Quarterly Distribution $0.365 99.9 % 0.1 % 0.0 % First Target Distribution up to $ 0.420 99.9 % 0.1 % 0.0 % Second Target Distribution above $ 0.420 0.456 85.0 % 0.1 % 14.9 % Third Target Distribution Above $ 0.456 0.548 75.0 % 0.1 % 24.9 % Thereafter above $ 0.548 50.0 % 0.1 % 49.9 %

Earnings_(Loss) per Unit (Table

Earnings/(Loss) per Unit (Tables)	12 Months Ended
	Dec. 31, 2022
Earnings Per Unit [Abstract]
Earnings/(Loss) per Unit (Table)	Earnings/(Loss) per Unit (Table) Year ended December 31, 2022 2021 2020 Partnership’s Net income $ 54,010 $ 53,260 $ 34,052 Less: Net Income attributable to preferred unitholders 11,563 11,563 11,563 General Partner’s interest in Net Income 42 41 23 Net income/(loss) attributable to common unitholders $ 42,405 $ 41,656 $ 22,466 Weighted average number of common units outstanding, basic and diluted 36,802,247 36,504,120 35,546,823 Earnings/ (Losses) per common unit, basic and diluted $ 1.15 $ 1.14 $ 0.63

Interest and Finance Costs (Tab

Interest and Finance Costs (Tables)	12 Months Ended
	Dec. 31, 2022
Interest And Finance Costs
Interest and Finance Costs (Table)	Interest and Finance Costs (Table) Year ended December 31, 2022 2021 2020 Interest expense (Note 5) $ 25,661 $ 18,762 $ 24,146 Amortization of deferred financing fees 2,032 2,285 2,527 Write-off of deferred financing fees — — — Commitment fees (Note 5) — — — Other 218 373 385 Total $ 27,911 $ 21,420 $ 27,058

Derivative financial instrume_2

Derivative financial instrument (Tables)	12 Months Ended
	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments - Not designated as Hedging Instruments - Balance Sheet Location (Table)	Derivative Financial Instruments - Not designated as Hedging Instruments - Balance Sheet Location (Table) 2022 2021 Derivative Balance Sheet Location Assets Liabilities Assets Liabilities Interest rate swap Derivative financial Instruments, Current $ 22,544 — $ 555 — Interest rate swap Derivative financial Instruments, non- Current 12,333 — 8,269 — Total $ 34,877 — $ 8,824 —
Derivative Financial Instruments - Not designated as Hedging Instruments - Net effect on the Consolidated Statements of Comprehensive Income (Table)	Derivative Financial Instruments - Not designated as Hedging Instruments - Net effect on the Consolidated Statements of Comprehensive Income (Table) Net Realized and Unrealized Gain /(Loss) Recognized on Statement of Comprehensive Income Location Derivative Amount 2022 2021 Interest rate swap Gain /(Loss) on derivative instruments $ 33,655 $ 10,104 Total $ 33,655 $ 10,104

Basis of Presentation and Gen_3

Basis of Presentation and General Information - Vessel Owning Subsidiaries (Table) (Details) Pure in Thousands	12 Months Ended
	Dec. 31, 2022
Pegasus Shipholding S.A. ("Pegasus") [Member]
Property, Plant and Equipment [Line Items]
Country of incorporation/ formation	Marshall Islands
Vessel Name	Clean Energy
Delivery date from shipyard	March 2007
Delivery date to Partnership	October 2013
Cbm Capacity	149,700
Lance Shipping S.A. ("Lance") [Member]
Property, Plant and Equipment [Line Items]
Country of incorporation/ formation	Marshall Islands
Vessel Name	Ob River
Delivery date from shipyard	July 2007
Delivery date to Partnership	October 2013
Cbm Capacity	149,700
Seacrown Maritime Ltd. ("Seacrown") [Member]
Property, Plant and Equipment [Line Items]
Country of incorporation/ formation	Marshall Islands
Vessel Name	Amur River
Delivery date from shipyard	January 2008
Delivery date to Partnership	October 2013
Cbm Capacity	149,700
Fareastern Shipping Limited ("Fareastern") [Member]
Property, Plant and Equipment [Line Items]
Country of incorporation/ formation	Malta
Vessel Name	Arctic Aurora
Delivery date from shipyard	July 2013
Delivery date to Partnership	June 2014
Cbm Capacity	155,000
Navajo Marine Limited ("Navajo") [Member]
Property, Plant and Equipment [Line Items]
Country of incorporation/ formation	Marshall Islands
Vessel Name	Yenisei River
Delivery date from shipyard	July 2013
Delivery date to Partnership	September 2014
Cbm Capacity	155,000
Solana Holding Ltd. ("Solana") [Member]
Property, Plant and Equipment [Line Items]
Country of incorporation/ formation	Marshall Islands
Vessel Name	Lena River
Delivery date from shipyard	October 2013
Delivery date to Partnership	December 2015
Cbm Capacity	155,000

Basis of Presentation and Gen_4

Basis of Presentation and General Information - Non-Vessel Owning Subsidiaries (Table) (Details)	12 Months Ended
	Dec. 31, 2022
Dynagas Operating GP LLC ("Dynagas Operating GP") [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ownership interest in subsidiary	100%
Dynagas Operating LP ("Dynagas Operating") [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ownership interest in subsidiary	100%

Basis of Presentation and Gen_5

Basis of Presentation and General Information (Details Narrative) - USD ($)	11 Months Ended	12 Months Ended
	Nov. 18, 2013	Dec. 31, 2022	Dec. 31, 2021
Product Information [Line Items]
Date of incorporation		May 30, 2013
Working capital surplus		$ 4,000,000
Working capital deficit			$ 13,800,000
Dynagas Holding Ltd [Member]
Product Information [Line Items]
Ownership percentage		42.40%
Customer Concentration Risk [Member] | Revenues [Member] | Yamal Trade Pte. Ltd. [Member]
Product Information [Line Items]
Concentration Risk, Percentage		41%	39%
Dynagas Holding Ltd [Member] | $30 million Sponsor Facility [Member]
Product Information [Line Items]
Line of credit facility, maximum borrowing capacity	$ 30,000,000
Line of Credit Facility, Expiration Date	November 2023
Debt Instrument, Covenant Compliance		Currently imposed sanctions, do not affect the Partnership’s compliance with terms imposed by its $675 Million Credit Facility
General Partner [Member] | Dynagas Holding Ltd [Member]
Product Information [Line Items]
General Partner Interest in Dynagas LNG Partners LP		0.10%
IPO [Member]
Product Information [Line Items]
Date of initial public offering (IPO)		November 18, 2013
IPO [Member] | Common [Member]
Product Information [Line Items]
Limited Partners Capital Account Units Offered	8,250,000
Shares Issued, Price Per Share	$ 18
IPO [Member] | Common [Member] | Dynagas Holding Ltd [Member]
Product Information [Line Items]
Limited Partners Capital Account Units Offered	4,250,000
Shares Issued, Price Per Share	$ 18

Significant Accounting Polici_4

Significant Accounting Policies and Recent Accounting Pronouncements - Major Charterers (Table) (Details) - Customer Concentration Risk [Member] - Revenues [Member]	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Charterer A [Member]
Revenue, Major Customer [Line Items]
Percentage of time charter revenue	43%	45%	45%
Charterer B [Member]
Revenue, Major Customer [Line Items]
Percentage of time charter revenue	41%	39%	39%
Charterer C [Member]
Revenue, Major Customer [Line Items]
Percentage of time charter revenue	16%	16%	16%
All Charterers [Member]
Revenue, Major Customer [Line Items]
Percentage of time charter revenue	100%	100%	100%

Significant Accounting Polici_5

Significant Accounting Policies and Recent Accounting Pronouncements (Details Narrative)	12 Months Ended
	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) shares
Accounting Policies [Abstract]
Provision for doubtful accounts	$ 0	$ 0
Depreciation method	straight-line
Estimated residual scrap rate per light-weight ton	$ 500
Property, Plant and Equipment, Useful Life	35 years
Impairment charges	$ 0	0	$ 0
Vessels dry-dock or special survey period within the first 15 years of useful life	5 years
Vessels dry-dock or special survey period within the remaining useful life	2 years 6 months
Contract Fulfillment Cost Amortization	$ 200,000	$ 200,000	$ 200,000
Dilutive securities outstanding | shares | shares	0	0	0
Number of reportable segments	1

Transactions with related par_3

Transactions with related parties - Statements of Income (Table) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Included in voyage expenses – related party
Charter hire commissions (a)	$ 1,632	$ 1,718	$ 1,719
Included in general and administrative expenses – related party
Administrative services fee (e)	688	758	733
Management fees-related party
Management fees (a)	6,203	6,023	6,752
Executive Services Fee [Member]
Included in general and administrative expenses – related party
Administrative services fee (e)	568	638	613
Administrative Services Fee [Member]
Included in general and administrative expenses – related party
Administrative services fee (e)	$ 120	$ 120	$ 120

Transactions with related par_4

Transactions with related parties - Balance Sheet (Table) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets:
Due from Related Parties, Current	$ 0	$ 1,144
Due from Related Parties, Noncurrent	1,350	1,350
Total assets due from related party	1,350	2,494
Liabilities included in Due to related party:
Due to Related Parties, Current	1,472	247
Working capital advances granted to the Manager (a) [Member]
Assets:
Due from Related Parties, Current	0	1,144
Security deposits to Manager (a) [Member]
Assets:
Due from Related Parties, Noncurrent	1,350	1,350
Working capital due to Manager (a) [Member]
Liabilities included in Due to related party:
Due to Related Parties, Current	836	0
Executive service charges due to Manager (d) [Member]
Liabilities included in Due to related party:
Due to Related Parties, Current	135	155
Administrative service charges due to Manager (e) [Member]
Liabilities included in Due to related party:
Due to Related Parties, Current	30	30
Management fees due to Manager (a) [Member]
Liabilities included in Due to related party:
Due to Related Parties, Current	0	0
Other Partnership expenses due to Manager [Member]
Liabilities included in Due to related party:
Due to Related Parties, Current	$ 471	$ 62

Transactions with related par_5

Transactions with related parties (Details Narrative) € in Thousands	3 Months Ended	10 Months Ended	11 Months Ended	12 Months Ended
	Mar. 21, 2014	Nov. 14, 2018	Nov. 18, 2013 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 EUR (€)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 30, 2014 USD ($)	Dec. 31, 2013 USD ($)
Related Party Transaction [Line Items]
Management Fees Related Party				$ 6,203,000		$ 6,023,000	$ 6,752,000
Charter Hire Commission				1,632,000		1,718,000	1,719,000
Advances				1,350,000		1,350,000
Due to Related Parties, Current				1,472,000		247,000
Due from Related Parties, Current				0		1,144,000
Administrative services fee				$ 688,000		758,000	733,000
Eur/US Dollar exchange rate				1.0562
Annual executive services fee				$ 568,000		638,000	$ 613,000
Dynagas LTD | Master Agreement [Member]
Related Party Transaction [Line Items]
Management services agreement initial termination date				December 31, 2030	December 31, 2030		December 31, 2020
Daily management fee				$ 2,750			$ 3,167		$ 2,500
Management fees annual upward percentage adjustment				3%	3%
Administrative services days termination notice				6 months	6 months
Executive services agreement duration				5%	5%
Management Fees Related Party				$ 6,203,000		6,023,000	6,752,000
Dynagas Ltd. [Member]
Related Party Transaction [Line Items]
Daily management fee				$ 2,800		2,800	3,100
Charter Hire Commission payable to the Management company				1.25%	1.25%
Charter Hire Commission				$ 1,632,000		1,718,000	1,719,000
Advances				1,350,000		1,350,000
Dynagas Ltd. [Member] | Working Capital Advances [Member]
Related Party Transaction [Line Items]
Due to Related Parties, Current				836,000
Due from Related Parties, Current						1,144,000
$30 million Sponsor Facility [Member] | Dynagas Holding Ltd [Member]
Related Party Transaction [Line Items]
Revolving credit facility borrowing capacity			$ 30,000,000
Duration of facility			5 years
Line Of Credit Facility, Expiration Date			November 2023
Revolving credit facility amount drawn down				0		0
$30 million Extended Sponsor Facility [Member]
Related Party Transaction [Line Items]
Duration of facility		5 years
Executive Services Agreement [Member]
Related Party Transaction [Line Items]
Executive services agreement duration	The Executive Services Agreement had an initial term of five years and, on November 18, 2018, was automatically renewed for successive five year terms, unless terminated earlier.
Administrative services fee				$ 568,000	€ 538
Administrative Services Agreement [Member]
Related Party Transaction [Line Items]
Administrative services days termination notice				120 days	120 days
Administrative services fee				$ 120,000		$ 120,000	$ 120,000
Administrative Services Agreement [Member] | Monthly fee [Member]
Related Party Transaction [Line Items]
Administrative services fee								$ 10,000

Vessels, net (Table) (Details)

Vessels, net (Table) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Balance beginning of period	$ 853,190
Depreciation	(31,806)	$ (31,710)	$ (31,797)
Balance end of period	825,105	853,190
Vessel Cost [Member]
Property, Plant and Equipment [Line Items]
Balance beginning of period	1,167,909	1,167,909
Depreciation	0	0
Additions	3,721
Balance end of period	1,171,630	1,167,909	1,167,909
Accumulated Depreciation [Member]
Property, Plant and Equipment [Line Items]
Balance beginning of period	(314,719)	(283,009)
Depreciation	(31,806)	(31,710)
Balance end of period	(346,525)	(314,719)	(283,009)
Net Book Value [Member]
Property, Plant and Equipment [Line Items]
Balance beginning of period	853,190	884,900
Depreciation	(31,806)	(31,710)
Additions	3,721
Balance end of period	$ 825,105	$ 853,190	$ 884,900

Vessels, net (Details Narrative

Vessels, net (Details Narrative) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
$675 Million Senior Secured Term Loan Facility ($675 Million Credit Facility) [Member]
Property, Plant and Equipment [Line Items]
Collateral	all vessels comprising the Partnership’s fleet were first priority mortgaged as collateral
Ballast water treatment system ("BWTS") [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions	$ 3,721

Long-Term Debt - Credit Facilit

Long-Term Debt - Credit Facilities and Senior Notes (Table) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total debt	$ 499,912	$ 567,000
Less deferred financing fees	(2,879)	(5,034)
Total debt, net of deferred finance costs	497,033	561,966
Less current portion, net of deferred financing fees	(46,252)	(45,947)
Long-term debt, net of current portion and deferred financing fees	450,781	516,019
$675 Million Credit Facility [Member] | Fareastern Shipping Limited, Pegasus Shipholding S.A., Lance Shipping S.A., Seacrown Maritime Ltd., Navajo Marine Limited, Solana Holding Ltd. [Member]
Debt Instrument [Line Items]
$675 Million Credit Facility	$ 499,912	$ 567,000

Long-Term Debt - Principal Paym

Long-Term Debt - Principal Payments (Table) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Disclosure [Abstract]
2023	$ 48,000
2024	451,912
Total long-term debt	$ 499,912	$ 567,000

Long-Term Debt (Details Narrati

Long-Term Debt (Details Narrative) - USD ($)	9 Months Ended	10 Months Ended	12 Months Ended
	Sep. 25, 2019	Oct. 30, 2019	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Oct. 12, 2022
Debt Instrument [Line Items]
Restricted cash			$ 31,270,000	$ 50,000,000
Gain on extinguishment of bebt			2,072,000	0	$ 0
Write-off of unamortized debt discounts			$ 0	$ 0	$ 0
Weighted average interest rate			4.65%	3.10%	3.70%
Total interest incurred on long-term debt			$ 25,661,000	$ 18,762,000	$ 24,146,000
Line of credit facility, commitment fee amount			$ 0	$ 0	$ 0
$250 Million Senior Unsecured Notes due 2019 (2019 Notes) [Member]
Debt Instrument [Line Items]
Repayments of notes payable		$ 204,600,000
$675 Million Senior Secured Term Loan Facility ($675 Million Credit Facility) [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Initiation Date			Sep. 18, 2019
Debt Instrument, Face Amount			$ 675,000,000
Amount drawn down	$ 675,000,000
Debt instrument, description of variable rate basis			U.S. LIBOR
Loan Margin Percentage			3%
Vessels provided as collateral			six LNG vessels
Maturity profile			5 years
Line of credit facility, repayment installments			20
Debt Instrument, frequency of payments			quarterly
Debt Instrument, Covenant Compliance			As of December 31, 2022, the Partnership was in compliance with all financial and non-financial covenants prescribed in its $675 Million Credit Facility. As also discussed in Note 1, currently imposed sanctions due to the Russian conflicts with Ukraine, do not affect the Partnership’s compliance with terms imposed by its $675 Million Credit Facility.
$675 Million Senior Secured Term Loan Facility ($675 Million Credit Facility) [Member] | Minimum [Member]
Debt Instrument [Line Items]
Restricted cash			$ 50,000,000
$480 Million Senior Secured Term Loan Facility [Member]
Debt Instrument [Line Items]
Amount repaid	$ 470,400,000
Supplemental Agreement to the $675 Million Credit Facility and a Deed of Retirement [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Initiation Date			Oct. 11, 2022
Line of Credit Facility, Prepayment Amount						$ 18,730,000
Principal amount waived			$ 2,195,000
Gain on extinguishment of bebt			2,072,000
Write-off of unamortized debt discounts			123,000
Supplemental Agreement to the $675 Million Credit Facility and a Deed of Retirement [Member] | Paid by the Partnership between March and September 2022 [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Repayment Amount			$ 1,789,000

Fair Value Measurements - Recur

Fair Value Measurements - Recurring Measurements (Table) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	$ 34,877	$ 8,824

Fair Value Measurements (Detail

Fair Value Measurements (Details Narrative) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Fair Value Measurements
Due from related parties non current fair value - determined through level 3 inputs	$ 922
Due from Related Parties, Noncurrent	$ 1,350	$ 1,350

Commitments and Contingencies -

Commitments and Contingencies - Charter Hire (Table) (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2023	$ 131,672
2024	146,043
2025	141,818
2026	112,826
2027	86,359
2028 and thereafter	270,126
Total	$ 888,844

Commitments and Contingencies_2

Commitments and Contingencies (Details Narrative) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Dynagas LTD | Master Agreement [Member]
Defined Benefit Plan Disclosure [Line Items]
Charter Hire Commission payable to the Management company	1.25%
Estimated commission payable over the minimum contractual charter revenues	$ 11,111
Related Party Transaction, Terms and Manner of Settlement	Management fees for the period from January 1, 2023 to the date of the expiration of the agreements on December 31, 2030, adjusted for the 3% annual inflation in accordance with the terms of the Management Agreements
Estimated management fees	$ 56,854
Two Time Charters [Member]
Defined Benefit Plan Disclosure [Line Items]
Lessor Operating Lease Nature Of Lease Payments	escalating
Renewal term of Time charter contract	three consecutive periods of five years
Another Two Time Charters [Member]
Defined Benefit Plan Disclosure [Line Items]
Lessor Operating Lease Nature Of Lease Payments	time charters contain both fixed lease and variable lease payments

Partners_ Equity (Table) (Detai

Partners’ Equity (Table) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2019
Total Quarterly Distribution Target Amount [Member] | Minimum Quarterly Distribution [Member] | Minimum [Member]
Distribution Per Unit	$ 0.365	$ 0.365
Total Quarterly Distribution Target Amount [Member] | First Target Distribution [Member] | Maximum [Member]
Distribution Per Unit	0.420
Total Quarterly Distribution Target Amount [Member] | Second Target Distribution [Member] | Minimum [Member]
Distribution Per Unit	0.420
Total Quarterly Distribution Target Amount [Member] | Second Target Distribution [Member] | Maximum [Member]
Distribution Per Unit	0.456
Total Quarterly Distribution Target Amount [Member] | Third Target Distribution [Member] | Minimum [Member]
Distribution Per Unit	0.456
Total Quarterly Distribution Target Amount [Member] | Third Target Distribution [Member] | Maximum [Member]
Distribution Per Unit	0.548
Total Quarterly Distribution Target Amount [Member] | Thereafter Target Distribution [Member] | Minimum [Member]
Distribution Per Unit	$ 0.548
Limited Unitholders [Member] | Minimum Quarterly Distribution [Member]
Percentage allocations of the additional available cash	99.90%
Limited Unitholders [Member] | First Target Distribution [Member]
Percentage allocations of the additional available cash	99.90%
Limited Unitholders [Member] | Second Target Distribution [Member]
Percentage allocations of the additional available cash	85%
Limited Unitholders [Member] | Third Target Distribution [Member]
Percentage allocations of the additional available cash	75%
Limited Unitholders [Member] | Thereafter Target Distribution [Member]
Percentage allocations of the additional available cash	50%
General Partner [Member] | Minimum Quarterly Distribution [Member]
Percentage allocations of the additional available cash	0.10%
General Partner [Member] | First Target Distribution [Member]
Percentage allocations of the additional available cash	0.10%
General Partner [Member] | Second Target Distribution [Member]
Percentage allocations of the additional available cash	0.10%
General Partner [Member] | Third Target Distribution [Member]
Percentage allocations of the additional available cash	0.10%
General Partner [Member] | Thereafter Target Distribution [Member]
Percentage allocations of the additional available cash	0.10%
Holders of IDRs [Member] | Minimum Quarterly Distribution [Member]
Percentage allocations of the additional available cash	0%
Holders of IDRs [Member] | First Target Distribution [Member]
Percentage allocations of the additional available cash	0%
Holders of IDRs [Member] | Second Target Distribution [Member]
Percentage allocations of the additional available cash	14.90%
Holders of IDRs [Member] | Third Target Distribution [Member]
Percentage allocations of the additional available cash	24.90%
Holders of IDRs [Member] | Thereafter Target Distribution [Member]
Percentage allocations of the additional available cash	49.90%

Partners_ Equity (Details Narra

Partners’ Equity (Details Narrative) - USD ($)	6 Months Ended	7 Months Ended	10 Months Ended	12 Months Ended
	Jul. 02, 2020	Jul. 20, 2015	Oct. 23, 2018	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Common unitholders - units outstanding				36,802,247	36,802,247
General Partner unitholders - units outstanding				35,526
General Partner unitholders - units issued				35,526	35,526
Proceeds from Issuance of Common Limited Partners Units				$ 0	$ 3,407,000	$ 297,000
A&R Sales Agreement [Member]
Issuance of units in public offering					1,189,667	122,580
Maximum aggregate offering price	$ 30,000,000
Proceeds from Issuance of Common Limited Partners Units					$ 3,300,000	$ 300,000
General Partner [Member]
General Partner Distributions				$ 0	$ 0	$ 0
Distribution 1 - FY 2018
Distribution Made To Limited Partner And General Partner Announcement Date				Apr. 18, 2018
Distributions per unit declared - distribution date				May 03, 2018
Distributions per unit declared - record date				Apr. 26, 2018
Distribution 1 - FY 2018 | Minimum [Member]
Distributions paid, Per unit				$ 0.25
Distribution 1 - FY 2018 | Maximum [Member]
Distributions paid, Per unit				$ 0.4225
Distribution 1 - FY 2019
Distribution Made To Limited Partner And General Partner Announcement Date				Jan. 25, 2019
Distributions per unit declared - distribution date				Feb. 14, 2019
Distributions per unit declared - record date				Feb. 07, 2019
Distribution 1 - FY 2019 | Minimum [Member]
Distributions paid, Per unit				$ 0.0625
Distribution 1 - FY 2019 | Maximum [Member]
Distributions paid, Per unit				0.25
Minimum Quarterly Distribution [Member] | Minimum [Member] | Total Quarterly Distribution Target Amount [Member]
Distribution Per Unit				$ 0.365			$ 0.365
Sponsor [Member]
Common unitholders - units outstanding				15,595,000
Series A Preferred Stock [Member]
Issuance of units in public offering		3,000,000
Fixed payment rate per annum		9%
Preferred stock liquidation preference		$ 25
Proceeds from issuance of preferred units, net of offering costs		$ 72,300,000
Underwriting discounts and commissions		2,400,000
Offering costs		$ 300,000
Units outstanding				3,000,000	3,000,000
Units issued				3,000,000	3,000,000
Series A Preferred Stock [Member] | Any Time On Or After August 2020 [Member]
Redemption price per share				$ 25
Series A Preferred Stock [Member] | Distribution From November 12, 2021 to February 11, 2022 [Member]
Distribution Made To Limited Partner And General Partner Announcement Date				Jan. 20, 2022
Distributions paid, Per unit				$ 0.5625
Distributions per unit declared - distribution date				Feb. 14, 2022
Distributions per unit declared - record date				Feb. 07, 2022
Series A Preferred Stock [Member] | Distribution From February 12, 2022 to May 11, 2022 [Member]
Distribution Made To Limited Partner And General Partner Announcement Date				Apr. 20, 2022
Distributions paid, Per unit				$ 0.5625
Distributions per unit declared - distribution date				May 12, 2022
Distributions per unit declared - record date				May 05, 2022
Series A Preferred Stock [Member] | Distribution From May 12, 2022 to August 11, 2022 [Member]
Distribution Made To Limited Partner And General Partner Announcement Date				Jul. 21, 2022
Distributions paid, Per unit				$ 0.5625
Distributions per unit declared - distribution date				Aug. 12, 2022
Distributions per unit declared - record date				Aug. 05, 2022
Series A Preferred Stock [Member] | Distribution From August 12, 2022 to November 11, 2022 [Member]
Distribution Made To Limited Partner And General Partner Announcement Date				Oct. 21, 2022
Distributions paid, Per unit				$ 0.5625
Distributions per unit declared - distribution date				Nov. 14, 2022
Distributions per unit declared - record date				Nov. 07, 2022
Series B Preferred Stock [Member]
Issuance of units in public offering			2,200,000
Preferred stock liquidation preference			$ 25
Proceeds from issuance of preferred units, net of offering costs			$ 53,000,000
Underwriting discounts and commissions			$ 2,000,000
Units outstanding				2,200,000	2,200,000
Units issued				2,200,000	2,200,000
Series B Preferred Stock [Member] | From November 2023 [Member]
Preferred Stock, Dividend Payment Rate, Variable				three-month LIBOR
Preferred Stock Dividend Basis Spread On Variable Rate 1				5.593%
Series B Preferred Stock [Member] | Any Time On Or After November 2023 [Member]
Redemption price per share				$ 25
Series B Preferred Stock [Member] | Distribution From And Issue Date To But Excluding November 2023 [Member]
Fixed payment rate per annum				8.75%
Series B Preferred Stock [Member] | Distribution From November 22, 2021 to February 21, 2022 [Member]
Distribution Made To Limited Partner And General Partner Announcement Date				Jan. 31, 2022
Distributions paid, Per unit				$ 0.546875
Distributions per unit declared - distribution date				Feb. 22, 2022
Distributions per unit declared - record date				Feb. 14, 2022
Series B Preferred Stock [Member] | Distribution From February 22, 2022 to May 21, 2022 [Member]
Distribution Made To Limited Partner And General Partner Announcement Date				Apr. 29, 2022
Distributions paid, Per unit				$ 0.546875
Distributions per unit declared - distribution date				May 23, 2022
Distributions per unit declared - record date				May 16, 2022
Series B Preferred Stock [Member] | Distribution From May 22, 2022 to August 21, 2022 [Member]
Distribution Made To Limited Partner And General Partner Announcement Date				Jul. 29, 2022
Distributions paid, Per unit				$ 0.546875
Distributions per unit declared - distribution date				Aug. 22, 2022
Distributions per unit declared - record date				Aug. 15, 2022
Series B Preferred Stock [Member] | Distribution From August 22, 2022 to November 21, 2022 [Member]
Distribution Made To Limited Partner And General Partner Announcement Date				Oct. 31, 2022
Distributions paid, Per unit				$ 0.546875
Distributions per unit declared - distribution date				Nov. 22, 2022
Distributions per unit declared - record date				Nov. 15, 2022

Earnings_(Loss) per Unit (Tab_2

Earnings/(Loss) per Unit (Table) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Unit [Abstract]
Partnership’s Net income	$ 54,010	$ 53,260	$ 34,052
Less:
Net Income attributable to preferred unitholders	11,563	11,563	11,563
General Partner’s interest in Net Income	42	41	23
Net income/(loss) attributable to common unitholders	$ 42,405	$ 41,656	$ 22,466
Weighted average number of common units outstanding, basic and diluted	36,802,247	36,504,120	35,546,823
Earnings/ (Losses) per common unit, basic and diluted	$ 1.15	$ 1.14	$ 0.63

Interest and Finance Costs (T_2

Interest and Finance Costs (Table) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Interest And Finance Costs
Interest expense (Note 5)	$ 25,661	$ 18,762	$ 24,146
Amortization of deferred financing fees	2,032	2,285	2,527
Write-off of deferred financing fees	0	0	0
Commitment fees (Note 5)	0	0	0
Other	218	373	385
Total	$ 27,911	$ 21,420	$ 27,058

Derivative Financial Instrume_3

Derivative Financial Instruments - Not designated as Hedging Instruments - Balance Sheet Location (Table) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Asset, Current	$ 22,544	$ 555
Derivative Asset, Noncurrent	12,333	8,269
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Asset, Current	22,544	555
Derivative Liability, Current	0	0
Derivative Asset, Noncurrent	12,333	8,269
Derivative Liability, Noncurrent	0	0
Derivative Asset, Total	34,877	8,824
Derivative Liability, Total	$ 0	$ 0

Derivative Financial Instrume_4

Derivative Financial Instruments - Not designated as Hedging Instruments - Net effect on the Consolidated Statements of Comprehensive Income (Table) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain on Derivative, Net	$ 33,655,000	$ 10,104,000	$ (3,148,000)
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain on Derivative, Net	33,700,000	10,100,000
Interest Rate Swap [Member] | Net Realized and Unrealized Gain/ (Loss) Recognized on Statement of Income Location [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain on Derivative, Net	$ 33,655,000	$ 10,104,000

Derivative financial instrume_5

Derivative financial instrument (Details Narrative) - USD ($)	4 Months Ended	12 Months Ended
	May 07, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Gain on derivative financial instrument		$ 33,655,000	$ 10,104,000	$ (3,148,000)
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Notional Amount		519,000,000	567,000,000
Fair value of derivative asset		34,877,000	8,824,000
Gain on derivative financial instrument		33,700,000	10,100,000
Gain on non-hedging interest rate swaps		$ 7,400,000
Loss on non-hedging interest rate swaps			$ 1,400,000
$675 Million Senior Secured Term Loan Facility ($675 Million Credit Facility) [Member] | Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Inception Date	Jun. 29, 2020
Derivative, Underlying	fixed 3-month LIBOR rate
Derivative, Fixed Interest Rate	0.41%
Derivative, maturity date	September 2024

Taxes (Details Narrative)

Taxes (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Tonnage taxes for the period	$ 338	$ 317	$ 344
Potential income tax in absence of exemption	$ 3	$ 235	$ 65

Subsequent Events (Details Narr

Subsequent Events (Details Narrative) - Subsequent Event [Member] - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		4 Months Ended
	Jan. 31, 2023	Jan. 20, 2023	Apr. 20, 2023	Mar. 27, 2023
$675 Million Senior Secured Term Loan Facility ($675 Million Credit Facility) [Member]
Subsequent Event [Line Items]
Line of Credit Facility, Prepayment Amount				$ 31,300
Quarterly Unit Cash Distribution From November 12, 2022 to February 11, 2023 | Series A Preferred Stock [Member]
Subsequent Event [Line Items]
Distribution Made To Limited Partner And General Partner Announcement Date		Jan. 20, 2023
Distribution Made to Limited Partner, Distributions Paid, Per Unit		$ 0.5625
Distribution Made To Limited And General Partner Distribution Date		Feb. 13, 2023
Distribution Made To Limited And General Partner Date Record		Feb. 06, 2023
Quarterly Unit Cash Distribution From November 22, 2022 to February 21, 2023 | Series B Preferred Stock [Member]
Subsequent Event [Line Items]
Distribution Made To Limited Partner And General Partner Announcement Date	Jan. 31, 2023
Distribution Made to Limited Partner, Distributions Paid, Per Unit	$ 0.546875
Distribution Made To Limited And General Partner Distribution Date	Feb. 22, 2023
Distribution Made To Limited And General Partner Date Record	Feb. 15, 2023
Quarterly Unit Cash Distribution From February 12, 2023 to May 11, 2023 [Member] | Series A Preferred Stock [Member]
Subsequent Event [Line Items]
Distribution Made To Limited Partner And General Partner Announcement Date			Apr. 20, 2023
Distribution Made to Limited Partner, Distributions Paid, Per Unit			$ 0.5625
Distribution Made To Limited And General Partner Distribution Date			May 12, 2023
Distribution Made To Limited And General Partner Date Record			May 05, 2023