Financial Performance - Consolidated net sales for 2018 amounted to 2.3billion,anincreaseof91 million, or 4.2% from 2017 [151]. - Net sales for 2018 were 2,289,675thousand,anincreaseof4.12,198,404 thousand in 2017 [266]. - Gross profit decreased to 585,363thousandin2018,down8.0636,387 thousand in 2017 [266]. - Operating profit for 2018 was 292,674thousand,adeclineof9.3322,734 thousand in 2017 [266]. - Net income increased to 234,734thousandin2018,up23.2190,509 thousand in 2017 [266]. - Comprehensive income decreased to 199,412,000in2018from227,025,000 in 2017, reflecting a decline of 12.2% [268]. - Basic and diluted earnings per share rose to 20.34in2018,comparedto16.08 in 2017, reflecting a 26.0% increase [266]. Expenses and Costs - Petroleum additives operating profit for 2018 was 311million,adecreaseof34 million, or 9.8% from 2017 [160]. - The operating profit margin was 13.6% in 2018, down from 15.8% in 2017 and 18.4% in 2016, primarily due to increased raw material costs [161]. - Selling, general, and administrative expenses (SG&A) were 9million,or6.127 million in 2018 from 22millionin2017,primarilyduetohigheraveragedebt[170].−Cashpaidforinterestandfinancingexpensesin2018was28.92 million, up from 20.38millionin2017,indicatingariseof42.2198 million in 2018, down from 243millionin2017and353 million in 2016 [176]. - The company repurchased 603,449 shares of common stock at a total cost of 232millionduring2018[148].−Thecompanyrepurchased232 million of common stock and paid 80millionindividendsin2018[177].−Cashandcashequivalentsdecreasedfrom84 million at the end of 2017 to 73millionattheendof2018[181].−Cashprovidedfromoperatingactivitieswas197,911,000 in 2018, down from 242,795,000in2017,adecreaseof18.580,448,000 in 2018, slightly lower than 82,885,000in2017[275].DebtandFinancialRatios−Long−termdebtincreasedfrom603 million at the end of 2017 to 771millionattheendof2018,representing61.1771 million, with 600millionatfixedrates,indicatingnointerestrateriskforfixeddebt[248].−Variableratedebtundertherevolvingcreditfacilitywas168 million, with a hypothetical 10% increase in interest rates resulting in an additional interest expense of approximately 0.3million[249].−Long−termdebtincreasedsignificantlyto770,999,000 in 2018 from 602,900,000in2017,anincreaseof2856 million occurred in 2018 due to actual investment returns being less than expected for U.S. pension plans [212]. - The expected long-term rate of return for the U.K. pension plan is 5.7% as of December 31, 2018, based on actual asset allocation [222]. - The aggregate cash contributions to U.S. pension plans are expected to be approximately 2millionto4 million in 2019, while contributions to postretirement benefit plans are expected to be around 1million[218].MarketRisks−Thecompanyisexposedtomarketrisksincludingfluctuationsininterestrates,foreigncurrencyrates,andrawmaterialprices,whichcouldimpactoperationsandcashflows[245].−Thecompanyrecordedanetlossof8 million from foreign currency transaction adjustments in 2018, contrasting with a net gain of $5 million in both 2017 and 2016 [279].