{"id":989419,"date":"2026-08-04T12:18:05","date_gmt":"2026-08-04T16:18:05","guid":{"rendered":"https:\/\/www.marketnewsdesk.com\/index.php\/sinclair-launches-mammoth-monday-with-fuel-savings-of-up-to-25-cents-per-gallon\/"},"modified":"2026-08-04T12:18:05","modified_gmt":"2026-08-04T16:18:05","slug":"sinclair-launches-mammoth-monday-with-fuel-savings-of-up-to-25-cents-per-gallon","status":"publish","type":"post","link":"https:\/\/www.marketnewsdesk.com\/index.php\/sinclair-launches-mammoth-monday-with-fuel-savings-of-up-to-25-cents-per-gallon\/","title":{"rendered":"Sinclair Launches Mammoth Monday, With Fuel Savings of up to 25 Cents Per Gallon"},"content":{"rendered":"<p>        <!--.bwalignc { text-align: center; list-style-position: inside }\n.bwlistdisc { list-style-type: disc }body {font:normal small Arial,Helvetica,sans-serif;color:#000;background-color:#fff;padding:24px;margin:0;} a img {border:0;} h3 {font-size:medium;color:#000;margin:0 0 1em 0; text-align:center;}-->  <\/p>\n<p class=\"bwalignc\"><b>Sinclair Launches Mammoth Monday, With Fuel Savings of up to 25 Cents Per Gallon<\/b><\/p>\n<p>\nStarting Aug. 3, DINOPAY\u00ae users can save up to 25 cents per gallon every Monday through an exclusive in-app coupon.<\/p>\n<p>SALT LAKE CITY&#8211;(<a href=\"http:\/\/www.businesswire.com\">BUSINESS WIRE<\/a>)&#8211;<br \/>\nSinclair Oil (Sinclair), an HF Sinclair (NYSE: DINO) brand, announced today the national launch of Mammoth Monday\u2122, a new weekly fuel savings event designed to reward loyal customers with one of Sinclair\u2019s biggest fuel discounts of the week. Beginning Monday, Aug. 3, 2026, eligible DINOPAY\u00ae users can activate an exclusive in-app coupon and save 20 cents per gallon\u2014or 25 cents per gallon with Mobile Advantage\u2122\u2014every Monday at participating Sinclair stations.<\/p>\n<p>\nAvailable exclusively through the DINOPAY mobile app, Mammoth Monday gives eligible customers an extra discount every Monday at participating Sinclair locations. Customers simply activate the coupon before fueling to receive the offer, with enhanced savings available through Mobile Advantage when using an eligible linked bank account.<\/p>\n<p>\n\u201cAt Sinclair, we\u2019re always looking for new ways to deliver meaningful value to our customers,\u201d said Fergie Theriault, vice president, Marketing. \u201cWe\u2019re excited to bring this weekly savings opportunity to drivers across the country. Whether you\u2019re commuting to work, heading out on the road or simply filling up for the week ahead, Mondays are now the best day to fuel at Sinclair.\u201d<\/p>\n<p>\nMammoth Monday is designed to encourage members to make Sinclair their weekly fueling destination while introducing more drivers to the convenience and benefits of DINOPAY. In addition to exclusive fuel discounts, the app allows users to securely pay for fuel and eligible in-store purchases, access digital receipts, locate nearby Sinclair stations and receive additional offers throughout the year.<\/p>\n<p>\nCustomers can participate by:<\/p>\n<ul class=\"bwlistdisc\">\n<li>\nDownloading the free DINOPAY app from the App Store\u00ae or Google Play\u2122.<\/p>\n<\/li>\n<li>\nEnrolling in DINOPAY and linking an eligible payment method.<\/p>\n<\/li>\n<li>\nActivating the Mammoth Monday in-app coupon in DINOPAY before fueling, then using an eligible linked payment method at a participating Sinclair station every Monday to receive the applicable discount.<\/p>\n<\/li>\n<\/ul>\n<p>\nFor more information or to download DINOPAY, visit <a rel=\"nofollow\" href=\"https:\/\/cts.businesswire.com\/ct\/CT?id=smartlink&amp;url=https%3A%2F%2Fwww.sinclairoil.com%2Fdinopay&amp;esheet=54583023&amp;newsitemid=20260804771170&amp;lan=en-US&amp;anchor=https%3A%2F%2Fwww.sinclairoil.com%2Fdinopay&amp;index=1&amp;md5=9609d7fd135a6c6b4b9d6b159baac760\">https:\/\/www.sinclairoil.com\/dinopay<\/a>. For complete offer terms, eligibility requirements, participating locations and applicable gallon limits, visit <a rel=\"nofollow\" href=\"https:\/\/cts.businesswire.com\/ct\/CT?id=smartlink&amp;url=https%3A%2F%2Fwww.sinclairoil.com%2Fdinopay-offers&amp;esheet=54583023&amp;newsitemid=20260804771170&amp;lan=en-US&amp;anchor=https%3A%2F%2Fwww.sinclairoil.com%2Fdinopay-offers&amp;index=2&amp;md5=fa4504248170dd60fe53c0db63b17e80\">https:\/\/www.sinclairoil.com\/dinopay-offers<\/a>. Terms and conditions apply. App Store\u00ae is a registered trademark of Apple Inc. Google Play\u2122 is a trademark of Google LLC.<\/p>\n<p>\nAbout HF Sinclair Corporation:<\/p>\n<p>\nHF Sinclair Corporation, headquartered in Dallas, Texas, is an independent energy company that produces and markets high-value light products such as gasoline, diesel fuel, jet fuel, renewable diesel and other specialty products. HF Sinclair owns and operates refineries in Kansas, Oklahoma, New Mexico, Wyoming, Washington and Utah. HF Sinclair provides petroleum products and crude oil transportation, terminaling, storage and throughput services to its refineries and the petroleum industry. HF Sinclair markets its refined products principally in the Southwest U.S., the Rocky Mountains extending into the Pacific Northwest and in other neighboring Plains states. It supplies high-quality fuels to more than 1,800 branded stations and licenses the use of the Sinclair brand to more than 350 additional locations throughout the country. HF Sinclair produces renewable diesel at two of its facilities in Wyoming and also at its facility in Artesia, New Mexico. In addition, we produce and market base oils and other specialized lubricants in the U.S., Canada and the Netherlands, and export products to more than 80 countries.<\/p>\n<p>\nAbout Sinclair Oil:<\/p>\n<p>\nSinclair Oil, an HF Sinclair brand, is one of the oldest continuous brands in the energy business. Recognized for its iconic dinosaur, Sinclair has more than 1,800 independent Sinclair-branded and licensed stations throughout the country. DINOPAY\u00ae is an app-based payment system that allows users to pay for fuel and in-store items with their mobile device, track receipts, utilize fuel discounts and locate the nearest Sinclair location.<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/cts.businesswire.com\/ct\/CT?id=bwnews&amp;sty=20260804771170r1&amp;sid=flmnd&amp;distro=nx&amp;lang=en\" style=\"width:0;height:0\" \/><span class=\"bwct31415\" \/><\/p>\n<p id=\"mmgallerylink\"><span id=\"mmgallerylink-phrase\">View source version on businesswire.com: <\/span><span id=\"mmgallerylink-link\"><a href=\"https:\/\/www.businesswire.com\/news\/home\/20260804771170\/en\/\" rel=\"nofollow\">https:\/\/www.businesswire.com\/news\/home\/20260804771170\/en\/<\/a><\/span><\/p>\n<p><b>Media Inquiries<br \/>\n<\/b><br \/><a rel=\"nofollow\" href=\"mailto:media@hfsinclair.com\">media@hfsinclair.com<\/a><\/p>\n<p><b>KEYWORDS:<\/b> Utah United States North America<\/p>\n<p><b>INDUSTRY KEYWORDS:<\/b> Oil\/Gas Retail Energy Technology Finance Apps\/Applications Professional Services Online Retail Discount\/Variety Other Retail Transport Other Technology Specialty Payments Logistics\/Supply Chain Management Other Energy<\/p>\n<p><b>MEDIA:<\/b><\/p>\n<table cellpadding=\"3\" cellspacing=\"3\" \/>\n","protected":false},"excerpt":{"rendered":"<p>Sinclair Launches Mammoth Monday, With Fuel Savings of up to 25 Cents Per Gallon Starting Aug. 3, DINOPAY\u00ae users can save up to 25 cents per gallon every Monday through an exclusive in-app coupon. SALT LAKE CITY&#8211;(BUSINESS WIRE)&#8211; Sinclair Oil (Sinclair), an HF Sinclair (NYSE: DINO) brand, announced today the national launch of Mammoth Monday\u2122, a new weekly fuel savings event designed to reward loyal customers with one of Sinclair\u2019s biggest fuel discounts of the week. Beginning Monday, Aug. 3, 2026, eligible DINOPAY\u00ae users can activate an exclusive in-app coupon and save 20 cents per gallon\u2014or 25 cents per gallon with Mobile Advantage\u2122\u2014every Monday at participating Sinclair stations. Available exclusively through the DINOPAY mobile app, Mammoth Monday gives eligible customers &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.marketnewsdesk.com\/index.php\/sinclair-launches-mammoth-monday-with-fuel-savings-of-up-to-25-cents-per-gallon\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Sinclair Launches Mammoth Monday, With Fuel Savings of up to 25 Cents Per Gallon&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-989419","post","type-post","status-publish","format-standard","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sinclair Launches Mammoth Monday, With Fuel Savings of up to 25 Cents Per Gallon - Market Newsdesk<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.marketnewsdesk.com\/index.php\/sinclair-launches-mammoth-monday-with-fuel-savings-of-up-to-25-cents-per-gallon\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sinclair Launches Mammoth Monday, With Fuel Savings of up to 25 Cents Per Gallon - Market Newsdesk\" \/>\n<meta property=\"og:description\" content=\"Sinclair Launches Mammoth Monday, With Fuel Savings of up to 25 Cents Per Gallon Starting Aug. 3, DINOPAY\u00ae users can save up to 25 cents per gallon every Monday through an exclusive in-app coupon. SALT LAKE CITY&#8211;(BUSINESS WIRE)&#8211; Sinclair Oil (Sinclair), an HF Sinclair (NYSE: DINO) brand, announced today the national launch of Mammoth Monday\u2122, a new weekly fuel savings event designed to reward loyal customers with one of Sinclair\u2019s biggest fuel discounts of the week. Beginning Monday, Aug. 3, 2026, eligible DINOPAY\u00ae users can activate an exclusive in-app coupon and save 20 cents per gallon\u2014or 25 cents per gallon with Mobile Advantage\u2122\u2014every Monday at participating Sinclair stations. 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SALT LAKE CITY&#8211;(BUSINESS WIRE)&#8211; Sinclair Oil (Sinclair), an HF Sinclair (NYSE: DINO) brand, announced today the national launch of Mammoth Monday\u2122, a new weekly fuel savings event designed to reward loyal customers with one of Sinclair\u2019s biggest fuel discounts of the week. Beginning Monday, Aug. 3, 2026, eligible DINOPAY\u00ae users can activate an exclusive in-app coupon and save 20 cents per gallon\u2014or 25 cents per gallon with Mobile Advantage\u2122\u2014every Monday at participating Sinclair stations. Available exclusively through the DINOPAY mobile app, Mammoth Monday gives eligible customers &hellip; Continue reading \"Sinclair Launches Mammoth Monday, With Fuel Savings of up to 25 Cents Per Gallon\"","og_url":"https:\/\/www.marketnewsdesk.com\/index.php\/sinclair-launches-mammoth-monday-with-fuel-savings-of-up-to-25-cents-per-gallon\/","og_site_name":"Market Newsdesk","article_published_time":"2026-08-04T16:18:05+00:00","og_image":[{"url":"https:\/\/cts.businesswire.com\/ct\/CT?id=bwnews&amp;sty=20260804771170r1&amp;sid=flmnd&amp;distro=nx&amp;lang=en","type":"","width":"","height":""}],"author":"Newsdesk","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Newsdesk","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.marketnewsdesk.com\/index.php\/sinclair-launches-mammoth-monday-with-fuel-savings-of-up-to-25-cents-per-gallon\/#article","isPartOf":{"@id":"https:\/\/www.marketnewsdesk.com\/index.php\/sinclair-launches-mammoth-monday-with-fuel-savings-of-up-to-25-cents-per-gallon\/"},"author":{"name":"Newsdesk","@id":"https:\/\/www.marketnewsdesk.com\/#\/schema\/person\/482f27a394d4fda80ecb5499e519d979"},"headline":"Sinclair Launches Mammoth Monday, With Fuel Savings of up to 25 Cents Per Gallon","datePublished":"2026-08-04T16:18:05+00:00","mainEntityOfPage":{"@id":"https:\/\/www.marketnewsdesk.com\/index.php\/sinclair-launches-mammoth-monday-with-fuel-savings-of-up-to-25-cents-per-gallon\/"},"wordCount":687,"image":{"@id":"https:\/\/www.marketnewsdesk.com\/index.php\/sinclair-launches-mammoth-monday-with-fuel-savings-of-up-to-25-cents-per-gallon\/#primaryimage"},"thumbnailUrl":"https:\/\/cts.businesswire.com\/ct\/CT?id=bwnews&amp;sty=20260804771170r1&amp;sid=flmnd&amp;distro=nx&amp;lang=en","inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.marketnewsdesk.com\/index.php\/sinclair-launches-mammoth-monday-with-fuel-savings-of-up-to-25-cents-per-gallon\/","url":"https:\/\/www.marketnewsdesk.com\/index.php\/sinclair-launches-mammoth-monday-with-fuel-savings-of-up-to-25-cents-per-gallon\/","name":"Sinclair Launches Mammoth Monday, With Fuel Savings of up to 25 Cents Per Gallon - 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