in addition , as a result of our acquisition of coen energy in 2017 , our customers include businesses engaged in the development of natural gas resources in pennsylvania and surrounding states . in our natural gas segment we purchase natural gas from natural gas producers and trading companies and sell and distribute natural gas to approximately 15,000 commercial and industrial customer locations across 13 states in the northeast and mid-atlantic united states . 32 table of contents our materials handling segment is generally conducted under multi-year agreements as either fee-based activities or as leasing arrangements when the right to use an identified asset ( such as storage tanks or storage locations ) has been conveyed in the agreement . we offload , store and or prepare for delivery a variety of customer-owned products , including asphalt , clay slurry , salt , gypsum , crude oil , residual fuel oil , coal , petroleum coke , caustic soda , tallow , pulp and heavy equipment . historically , a majority of our materials handling activity has generated qualified income . our other operations segment primarily includes the marketing and distribution of coal conducted in our portland , maine terminal , and commercial trucking activity conducted by our canadian subsidiary . we take title to the products we sell in our refined products and natural gas segments . in order to manage our exposure to commodity price fluctuations , we use derivatives and forward contracts to maintain a position that is substantially balanced between product purchases and product sales . we do not take title to any of the products in our materials handling segment . our foreign sales , primarily sales of refined products and natural gas to customers in canada , were $ 185.1 million , $ 255.5 million and $ 290.4 million for the years ended december 31 , 2020 , 2019 and 2018 , respectively . long-lived assets ( exclusive of intangible and other assets , net , and goodwill ) classified by geographic location were as follows : replace_table_token_2_th covid-19 the global outbreak of the novel coronavirus ( covid-19 ) was declared a pandemic by the world health organization and a national emergency by the u.s. government in march 2020 and has negatively affected the u.s. and global economy , disrupted global supply chains , resulted in significant travel and transport restrictions , including mandated closures and orders to “ shelter-in-place , ” and created significant disruption of the financial markets . beginning in the quarterly period ended march 31 , 2020 , a wide array of sectors including but not limited to the energy , transportation , manufacturing and commercial , along with global economic conditions generally , have been significantly disrupted by the pandemic . a growing number of the partnership 's customers in these industries have experienced substantial reductions in their operations due to travel restrictions as well as the extended shutdown of various businesses in affected regions . furthermore , government measures have also led to a precipitous decline in fuel prices in response to concerns about demand for fuel . the pandemic and associated impacts on economic activity had an adverse effect on the partnership 's operating results for the year ended december 31 , 2020 , specifically , the partnership has seen a decline in demand and related sales volume as large sectors of the global economy have been adversely impacted by the crisis . in response to these developments , the partnership took swift action to ensure the safety of employees and other stakeholders , and initiated a number of initiatives relating to cost reduction , liquidity and operating efficiencies . the partnership makes estimates and assumptions that affect the reported amounts on these consolidated financial statements and accompanying notes as of the date of the financial statements . the partnership assessed accounting estimates that require consideration of forecasted financial information , including , but not limited to , the allowance for credit losses , the carrying value of goodwill , intangible assets , and other long-lived assets . this assessment was conducted in the context of information reasonably available to the partnership , as well as consideration of the future potential impacts of covid-19 on the partnership 's business as of december 31 , 2020. at this time , the partnership is unable to predict with specificity the ultimate impact of the crisis , as it will depend on the magnitude , severity and duration of the pandemic , as well as how quickly , and to what extent , normal economic and operating conditions resume on a sustainable basis globally . accordingly , if the impact is more severe or longer in duration than the partnership has assumed , such impact could potentially result in impairments and increases in credit allowances . idr reset election on february 11 , 2021 , sprague holdings provided notice to partnership that sprague holdings had made an idr reset election , as defined in our partnership agreement . pursuant to the idr reset election , sprague holdings will relinquish the 33 table of contents right to receive incentive distribution payments based on the minimum quarterly and target cash distribution levels set at the time of the partnership 's initial public offering and the partnership will issue 3,107,248 common units to sprague holdings . pursuant to the idr reset election , the minimum quarterly distribution amount will be increased from $ 0.4125 per common unit per quarter to $ 0.6675 per common unit per quarter and the levels at which the incentive distribution rights participate in distributions will be reset at higher amounts based on current common unit distribution rates and a formula in our partnership agreement . the idr reset election is expected to be consummated on march 5 , 2021. upon consummation of the idr reset election , sprague holdings will own 16,058,484 common units , representing 61.6 % of the limited partner interest in the partnership . story_separator_special_tag in addition , technology-driven changes such as automated fueling or the use of electric fleets can impact the fuel and manual support required at these operations . consequently , we may experience variability in the revenue we receive from this business segment . we can also see variability in the commercial segment such as in the construction industry , at times related to the increase or decrease in fracking and natural gas production , leading to further volatility . absolute price increase or decreases can impact demand and credit risk . commodity prices in both our refined products and natural gas segments can vary sharply due to market conditions . as commodity product prices rise , we can experience reduced demand as customers engage in conservation efforts , are exposed to a higher level of credit risk to meet customer requirements , and incur increased working capital costs for holding inventory and accounts receivable . in a lower commodity price environment our customers are generally less prone to engage in conservation efforts , we experience lower credit risk , and working capital costs to hold inventory and finance accounts receivable . the impact of the market structure on our hedging strategy . we typically hedge our exposure to commodity price moves with nymex futures contracts and `` over the counter `` or `` otc `` swaps . in markets where futures prices are higher than spot prices ( typically referred to as contango ) , we generate positive margins when rolling our inventory hedges to successive months . in markets where futures prices are lower than spot prices ( typically referred to as backwardation ) , we realize losses when rolling our inventory hedges to successive months . in backwardated markets , we operate with lower inventory levels and , as a result , have reduced hedging and financing requirements , thereby limiting losses . energy efficiency , new technology and alternative fuels could reduce demand for our products . increased conservation and technological advances have adversely affected the demand for heating oil and residual fuel oil . consumption of residual fuel oil , in particular , has steadily declined in recent years , primarily due to customers converting from other fuels to natural gas , weak industrial demand and tightening of environmental regulations . 37 table of contents use of natural gas is expected to continue to displace other fuels , which we believe will favorably impact our natural gas volumes and margins . interest rates could rise . interest rates could be higher than current levels , causing our financing costs to increase accordingly . during the 24 months ended december 31 , 2020 , we hedged approximately 47 % of our floating-rate debt with fixed-for-floating interest rate swaps . although higher interest rates could limit our ability to raise funds in the debt capital markets , we expect to remain competitive with respect to acquisitions and capital projects , as our competitors would face similar circumstances . as with other yield-oriented securities , our unit price is impacted by the level of our cash distributions and implied distribution yield . the distribution yield is often used by investors to compare and rank related yield-oriented securities for investment decision-making purposes . therefore , changes in interest rates , either positive or negative , may affect the yield requirements of investors who invest in our common units , and a rising interest rate environment could have an adverse impact on our unit price and our ability to issue additional equity to make acquisitions , reduce debt or for other purposes . 38 table of contents results of operations overview our current and future results of operations may not be comparable to our historical results of operations . our results of operations may be impacted by , among other things , swings in commodity prices , primarily in refined products and natural gas , and acquisitions or dispositions . we use economic hedges to minimize the impact of changing prices on refined products and natural gas inventory . as a result , commodity price increases at the end of a year can create lower gross margins as the economic hedges , or derivatives , for such inventory may lose value , whereas an increase in the value of such inventory is disregarded for gaap financial reporting purposes and recorded at the lower of cost or net realizable value . please read “ how management evaluates our results of operations . ” the following tables set forth information regarding our results of operations for the periods presented : replace_table_token_3_th 39 table of contents reconciliation to adjusted gross margin , ebitda and adjusted ebitda the following table sets forth a reconciliation of our consolidated operating income to our total adjusted gross margin , a non-gaap measure , for the periods presented and a reconciliation of our consolidated net income to ebitda and adjusted ebitda , non-gaap measures , for the periods presented . see above `` management 's discussion and analysis of financial condition and results of operations - ebitda and adjusted ebitda `` of this report . the table below also presents information on weather conditions for the periods presented . replace_table_token_4_th 40 table of contents ( 1 ) inventory is valued at the lower of cost or net realizable value . the adjustment related to change in unrealized gain on inventory which is not included in net income ( loss ) , represents the estimated difference between inventory valued at the lower of cost or net realizable value as compared to market values . the fair value of the derivatives we use to economically hedge our inventory declines or appreciates in value as the value of the underlying inventory appreciates or declines , which creates unrealized hedging losses ( gains ) with respect to the derivatives that are included in net income ( loss ) . ( 2 ) represents our estimate of the change in fair value of the

cash flows replace_table_token_11_th operating activities net cash provided by operating activities for the year ended december 31 , 2020 was $ 154.5 million and was favorably impacted by net income of $ 33.8 million , a decrease of $ 9.1 million in derivative instruments as a result of the increase in commodity prices in refined products during the year , a decrease of $ 88.1 million in accounts receivable driven by a combination of lower sales prices and volumes , a decrease of $ 37.7 million in inventories largely due to reductions in the cost of inventory purchases , as well as gain on the sale of the mount vernon terminal of $ 8.1 million included in the gain on sale of assets and insurance recoveries of $ 10.0 million . cash flows from operations were negatively impacted as a result of a reduction of $ 52.8 million in accounts payable and accrued liabilities primarily relating to the timing of invoice payments for product purchases . net cash used in operating activities for the year ended december 31 , 2019 was $ 65.4 million and was favorably impacted by net income of $ 31.3 million , a decrease of $ 48.1 million in derivative instruments as a result of the increase in commodity prices in refined products during the year . cash flows from operations were negatively impacted by an increase of 46 table of contents $ 11.9 million in accounts receivable , primarily related to higher commodity prices , an increase of $ 33.7 million in inventory , a decrease of $ 85.7 million in accounts payable and accrued liabilities , as well as an increase of $ 50.2 million in other assets due to year end timing .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```cash flows replace_table_token_11_th operating activities net cash provided by operating activities for the year ended december 31 , 2020 was $ 154.5 million and was favorably impacted by net income of $ 33.8 million , a decrease of $ 9.1 million in derivative instruments as a result of the increase in commodity prices in refined products during the year , a decrease of $ 88.1 million in accounts receivable driven by a combination of lower sales prices and volumes , a decrease of $ 37.7 million in inventories largely due to reductions in the cost of inventory purchases , as well as gain on the sale of the mount vernon terminal of $ 8.1 million included in the gain on sale of assets and insurance recoveries of $ 10.0 million . cash flows from operations were negatively impacted as a result of a reduction of $ 52.8 million in accounts payable and accrued liabilities primarily relating to the timing of invoice payments for product purchases . net cash used in operating activities for the year ended december 31 , 2019 was $ 65.4 million and was favorably impacted by net income of $ 31.3 million , a decrease of $ 48.1 million in derivative instruments as a result of the increase in commodity prices in refined products during the year . cash flows from operations were negatively impacted by an increase of 46 table of contents $ 11.9 million in accounts receivable , primarily related to higher commodity prices , an increase of $ 33.7 million in inventory , a decrease of $ 85.7 million in accounts payable and accrued liabilities , as well as an increase of $ 50.2 million in other assets due to year end timing .
```    
 Suspicious Activity Report : in addition , as a result of our acquisition of coen energy in 2017 , our customers include businesses engaged in the development of natural gas resources in pennsylvania and surrounding states . in our natural gas segment we purchase natural gas from natural gas producers and trading companies and sell and distribute natural gas to approximately 15,000 commercial and industrial customer locations across 13 states in the northeast and mid-atlantic united states . 32 table of contents our materials handling segment is generally conducted under multi-year agreements as either fee-based activities or as leasing arrangements when the right to use an identified asset ( such as storage tanks or storage locations ) has been conveyed in the agreement . we offload , store and or prepare for delivery a variety of customer-owned products , including asphalt , clay slurry , salt , gypsum , crude oil , residual fuel oil , coal , petroleum coke , caustic soda , tallow , pulp and heavy equipment . historically , a majority of our materials handling activity has generated qualified income . our other operations segment primarily includes the marketing and distribution of coal conducted in our portland , maine terminal , and commercial trucking activity conducted by our canadian subsidiary . we take title to the products we sell in our refined products and natural gas segments . in order to manage our exposure to commodity price fluctuations , we use derivatives and forward contracts to maintain a position that is substantially balanced between product purchases and product sales . we do not take title to any of the products in our materials handling segment . our foreign sales , primarily sales of refined products and natural gas to customers in canada , were $ 185.1 million , $ 255.5 million and $ 290.4 million for the years ended december 31 , 2020 , 2019 and 2018 , respectively . long-lived assets ( exclusive of intangible and other assets , net , and goodwill ) classified by geographic location were as follows : replace_table_token_2_th covid-19 the global outbreak of the novel coronavirus ( covid-19 ) was declared a pandemic by the world health organization and a national emergency by the u.s. government in march 2020 and has negatively affected the u.s. and global economy , disrupted global supply chains , resulted in significant travel and transport restrictions , including mandated closures and orders to “ shelter-in-place , ” and created significant disruption of the financial markets . beginning in the quarterly period ended march 31 , 2020 , a wide array of sectors including but not limited to the energy , transportation , manufacturing and commercial , along with global economic conditions generally , have been significantly disrupted by the pandemic . a growing number of the partnership 's customers in these industries have experienced substantial reductions in their operations due to travel restrictions as well as the extended shutdown of various businesses in affected regions . furthermore , government measures have also led to a precipitous decline in fuel prices in response to concerns about demand for fuel . the pandemic and associated impacts on economic activity had an adverse effect on the partnership 's operating results for the year ended december 31 , 2020 , specifically , the partnership has seen a decline in demand and related sales volume as large sectors of the global economy have been adversely impacted by the crisis . in response to these developments , the partnership took swift action to ensure the safety of employees and other stakeholders , and initiated a number of initiatives relating to cost reduction , liquidity and operating efficiencies . the partnership makes estimates and assumptions that affect the reported amounts on these consolidated financial statements and accompanying notes as of the date of the financial statements . the partnership assessed accounting estimates that require consideration of forecasted financial information , including , but not limited to , the allowance for credit losses , the carrying value of goodwill , intangible assets , and other long-lived assets . this assessment was conducted in the context of information reasonably available to the partnership , as well as consideration of the future potential impacts of covid-19 on the partnership 's business as of december 31 , 2020. at this time , the partnership is unable to predict with specificity the ultimate impact of the crisis , as it will depend on the magnitude , severity and duration of the pandemic , as well as how quickly , and to what extent , normal economic and operating conditions resume on a sustainable basis globally . accordingly , if the impact is more severe or longer in duration than the partnership has assumed , such impact could potentially result in impairments and increases in credit allowances . idr reset election on february 11 , 2021 , sprague holdings provided notice to partnership that sprague holdings had made an idr reset election , as defined in our partnership agreement . pursuant to the idr reset election , sprague holdings will relinquish the 33 table of contents right to receive incentive distribution payments based on the minimum quarterly and target cash distribution levels set at the time of the partnership 's initial public offering and the partnership will issue 3,107,248 common units to sprague holdings . pursuant to the idr reset election , the minimum quarterly distribution amount will be increased from $ 0.4125 per common unit per quarter to $ 0.6675 per common unit per quarter and the levels at which the incentive distribution rights participate in distributions will be reset at higher amounts based on current common unit distribution rates and a formula in our partnership agreement . the idr reset election is expected to be consummated on march 5 , 2021. upon consummation of the idr reset election , sprague holdings will own 16,058,484 common units , representing 61.6 % of the limited partner interest in the partnership . story_separator_special_tag in addition , technology-driven changes such as automated fueling or the use of electric fleets can impact the fuel and manual support required at these operations . consequently , we may experience variability in the revenue we receive from this business segment . we can also see variability in the commercial segment such as in the construction industry , at times related to the increase or decrease in fracking and natural gas production , leading to further volatility . absolute price increase or decreases can impact demand and credit risk . commodity prices in both our refined products and natural gas segments can vary sharply due to market conditions . as commodity product prices rise , we can experience reduced demand as customers engage in conservation efforts , are exposed to a higher level of credit risk to meet customer requirements , and incur increased working capital costs for holding inventory and accounts receivable . in a lower commodity price environment our customers are generally less prone to engage in conservation efforts , we experience lower credit risk , and working capital costs to hold inventory and finance accounts receivable . the impact of the market structure on our hedging strategy . we typically hedge our exposure to commodity price moves with nymex futures contracts and `` over the counter `` or `` otc `` swaps . in markets where futures prices are higher than spot prices ( typically referred to as contango ) , we generate positive margins when rolling our inventory hedges to successive months . in markets where futures prices are lower than spot prices ( typically referred to as backwardation ) , we realize losses when rolling our inventory hedges to successive months . in backwardated markets , we operate with lower inventory levels and , as a result , have reduced hedging and financing requirements , thereby limiting losses . energy efficiency , new technology and alternative fuels could reduce demand for our products . increased conservation and technological advances have adversely affected the demand for heating oil and residual fuel oil . consumption of residual fuel oil , in particular , has steadily declined in recent years , primarily due to customers converting from other fuels to natural gas , weak industrial demand and tightening of environmental regulations . 37 table of contents use of natural gas is expected to continue to displace other fuels , which we believe will favorably impact our natural gas volumes and margins . interest rates could rise . interest rates could be higher than current levels , causing our financing costs to increase accordingly . during the 24 months ended december 31 , 2020 , we hedged approximately 47 % of our floating-rate debt with fixed-for-floating interest rate swaps . although higher interest rates could limit our ability to raise funds in the debt capital markets , we expect to remain competitive with respect to acquisitions and capital projects , as our competitors would face similar circumstances . as with other yield-oriented securities , our unit price is impacted by the level of our cash distributions and implied distribution yield . the distribution yield is often used by investors to compare and rank related yield-oriented securities for investment decision-making purposes . therefore , changes in interest rates , either positive or negative , may affect the yield requirements of investors who invest in our common units , and a rising interest rate environment could have an adverse impact on our unit price and our ability to issue additional equity to make acquisitions , reduce debt or for other purposes . 38 table of contents results of operations overview our current and future results of operations may not be comparable to our historical results of operations . our results of operations may be impacted by , among other things , swings in commodity prices , primarily in refined products and natural gas , and acquisitions or dispositions . we use economic hedges to minimize the impact of changing prices on refined products and natural gas inventory . as a result , commodity price increases at the end of a year can create lower gross margins as the economic hedges , or derivatives , for such inventory may lose value , whereas an increase in the value of such inventory is disregarded for gaap financial reporting purposes and recorded at the lower of cost or net realizable value . please read “ how management evaluates our results of operations . ” the following tables set forth information regarding our results of operations for the periods presented : replace_table_token_3_th 39 table of contents reconciliation to adjusted gross margin , ebitda and adjusted ebitda the following table sets forth a reconciliation of our consolidated operating income to our total adjusted gross margin , a non-gaap measure , for the periods presented and a reconciliation of our consolidated net income to ebitda and adjusted ebitda , non-gaap measures , for the periods presented . see above `` management 's discussion and analysis of financial condition and results of operations - ebitda and adjusted ebitda `` of this report . the table below also presents information on weather conditions for the periods presented . replace_table_token_4_th 40 table of contents ( 1 ) inventory is valued at the lower of cost or net realizable value . the adjustment related to change in unrealized gain on inventory which is not included in net income ( loss ) , represents the estimated difference between inventory valued at the lower of cost or net realizable value as compared to market values . the fair value of the derivatives we use to economically hedge our inventory declines or appreciates in value as the value of the underlying inventory appreciates or declines , which creates unrealized hedging losses ( gains ) with respect to the derivatives that are included in net income ( loss ) . ( 2 ) represents our estimate of the change in fair value of the

