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Aftermath of Hurricane Harvey Lingers over U.S. Refinery Markets

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Hurricane Harvey made landfall in Texas on August 25 and spent the next week ravaging the U.S. Gulf Coast. The nation’s oil industry, which has a de facto capitol in Houston, felt the wrath of the storm as much as any other. Refinery shutdowns across the Texas Gulf Coast significantly impaired crude demand for the entire country.

The ongoing outages have had widespread impacts, which have not been confined to Gulf Coast markets. Refiners in the Mid-Continent and East Coast have ramped up run rates to take advantage of a lack of demand outlets and subsequently wide refinery margins. Several refineries have also reported delays in their maintenance schedule following the unforeseen circumstances, which could lead to continued low crude demand in the spring maintenance season.

Slowly, but Surely: Refinery Restarts Continue Along the Texas Gulf Coast

Refinery outages in Texas began as early as August 24, with the last facilities shutting on August 30, according to Genscape’s North American Refinery Intelligence report. At the peak of the outages on August 30, more than 3.7mn bpd of primary processing refining capacity was offline, with outages spanning across Corpus Christi, TX, Houston, and Port Arthur, TX.
 
Refinery units have gradually returned to service through September. However, 1.17mn bpd of primary processing capacity remained offline as of September 20. All monitored units at Corpus Christi refineries had returned to service at that time, while restarts continued in Houston and Port Arthur. In total, more than 40mn bbls of crude could have been run during the refinery shut-ins, based on crude distillation unit outages.
 
Fortunately, Louisiana refineries were spared from Harvey-based operational issues, as Harvey had weakened to a tropical storm by the time it reached Louisiana. Additionally, most of the oil facilities in southeast Louisiana are located in 500-year floodplains, which have a 0.2 percent chance of flood hazard, according to the U.S. Federal Emergency Management Agency's National Flood Hazard Layer.
 
Refining Capacity Offline due to Hurricane Harvey

Following the Path of the Storm

Corpus Christi was the first hub to feel the impact of the storm, as Harvey made landfall less than 30 miles away in Rockport, TX. All Corpus Christi refineries began shutting down on August 24 in preparation for the hurricane.
 
That day, a maximum of 830,425 bpd of primary processing capacity (including crude distillation units and vacuum distillation units) was offline. Unit restarts began a week later, and all monitored primary processing refinery units in Corpus Christi were back online by September 11.
 
Harvey eventually backtracked into the Gulf of Mexico, but moved east and made a second landfall near the Texas/Louisiana border. The eastward movement brought Harvey closer to Houston, while the second landfall was within 40 miles of Port Arthur, which put new crude infrastructure directly in harm’s way.
 
Hurricane Harvey Progression
 
Houston refineries began to shut on August 26, although not all refineries ceased operations. A maximum of 1.724mn bpd of primary processing refining capacity was offline on August 29. Houston outages have gradually declined since then, with the majority of monitored refinery units in Houston returned to service as of September 20. At that time, only 348,000 bpd of primary processing capacity remained offline between Shell's 340,000 bpd Deer Park, TX, refinery and Valero's 90,000 bpd Houston refinery.
 
Port Arthur was the last region hit by Hurricane Harvey. Therefore, refinery shutdowns did not begin until August 28, reaching a peak of 1.463mn bpd primary processing capacity offline on August 30. The relatively late and unexpected nature of the Port Arthur shutdowns have made those refineries the slowest to restart.
 
Several monitored refinery units in Port Arthur had returned to service as of September 19. However, 821,500 bpd of primary processing capacity remained offline, including units at Exxon's 350,000 bpd Beaumont refinery and Total's 225,000 bpd Port Arthur refinery. An unrelated fire at Valero’s 292,000 bpd Port Arthur refinery on September 19 contributed to the continued outages, slowing down recovery in the region.

Run Now, Rest Later: Strong Refinery Margins Lead to Deferred Maintenance

Although infrastructure damage from Harvey was mostly confined to Texas, refinery markets beyond the Gulf Coast certainly felt the effects of the storm. More than 20 percent of total U.S. refining capacity was shut in the wake of Harvey, according to Genscape. The drastic, unexpected fallout in demand put pressure on unaffected refineries to partially fill the void, while also providing opportunities to profit.

The sudden loss of crude demand and simultaneous loss of refined products supply caused their respective prices to diverge. NYMEX Light Sweet Crude (WTI) front month prices fell $2.45/bbl between August 23-30. Meanwhile, NYMEX gasoline (RBOB) and diesel (ULSD) front month prices rose $11.16/bbl and $2.07/bbl, respectively. The directional difference in price movements led to the strongest refinery margins in more than four years.

The 321 crack spread, a common metric for the profitability of refining crude into gasoline and diesel, jumped $17.63/bbl to $37.29/bbl between August 23-31, the widest daily close since March 8, 2013. The spread has since narrowed as Gulf Coast refineries have returned to service and assuaged demand concerns. On September 19, the spread closed at $21.13/bbl, still $4.43/bbl above the pre-storm 2017 average and $7.33/bbl above the September 2016 average.

Monthly 321 Crack Spread

Strong refinery margins have incentivized refiners in the Mid-Continent and East Coast to run their facilities full steam ahead, according to several reports. In fact, several refiners in the Mid-Continent have opted to postpone planned maintenance in order to take advantage of the temporarily wide spread. Additionally, many skilled labor crews that would typically complete the maintenance are occupied with refinery restart work in the Gulf Coast.

The ongoing multi-unit turnaround at Citgo’s 167,000 bpd Lemont, IL, refinery was delayed approximately one week, while Exxon has moved planned work at a coker and catalytic reformer at their 238,600 bpd Joliet, IL, refinery from September to mid-October, sources reported. Also in the region, Marathon moved work back one to two weeks on an alkylation unit at their 212,000 bpd Catlettsburg, KY, refinery and delayed the shutdown of the alkylation unit at their Robinson, IL, refinery from mid-September to early October.

Certain Gulf Coast refineries have also delayed fall turnaround due to the unplanned outages. Maintenance at Motiva’s 600,000 bpd Port Arthur refinery (the largest refinery in the country) and Phillips 66’s 247,000 bpd Sweeny, TX, refinery has been rescheduled for 2018, according to IndustryWeek.

Implications

Three weeks after Hurricane Harvey made landfall, many of the immediate ramifications on the oil industry have receded: ports and terminals have resumed their daily operations, tumultuous oil price movements have begun to stabilize, and largescale restart efforts have minimized refinery outages along the Texas Gulf Coast, particularly in Corpus Christi and Houston.
 
However, the storm has left a considerable footprint. Shuttered demand backed crude barrels into storage, leading to a three-week, 14mn-bbl stock build at Genscape-monitored PADD 3 locations. The increase has effectively undone the previous seven weeks of destocking, while leaving Port Arthur stocks at record-high levels.
 
Furthermore, refinery turnaround delays could lead to more maintenance than expected in early 2018, setting up for another season of low crude demand in the spring. The extent of deferred maintenance as more companies report their plans will help provide clarity on changes to the 2018 spring maintenance season. Genscape will continue monitoring the ongoing impacts of the active hurricane season on refinery markets and other areas of the supply chain.
 
Genscape's North American Refinery Intelligence Service combines observations obtained from infrared cameras with in-house analytical and technological expertise to provide an unrivaled view into near-real-time operations at U.S. and Canadian refineries. The service provides subscribers with insight into supply and demand with information on intra-day changes in the status of product-specific units at refineries. To learn more about Genscape's North American Refinery Intelligence Service, or to request a free trial, please click here

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