By Scott DiSavino
       May 2 (Reuters) - U.S. natural gas futures jumped about 5% on Thursday on a continued drop in output and forecasts for
more demand next week than previously expected due to an increase in the amount of gas flowing to liquefied natural gas (LNG)
export plants.
    The price rise came even though last week's storage build was slightly bigger than analysts expected.
        The U.S. Energy Information Administration (EIA) said utilities added 59 billion cubic feet (bcf) of gas into storage
during the week ended April 26.
    That was more than the 55-bcf build analysts forecast in a Reuters poll and compares with an increase of 62 bcf in the same
week last year and a five-year (2019-2023) average rise of 72 bcf for this time of year.
    That leaves gas stockpiles about 35% above normal levels for this time of year.
    U.S. gas production has dropped by around 10% so far in 2024 after several energy firms, including EQT and Chesapeake
Energy, delayed well completions and cut back on other drilling activities after prices fell to 3-1/2-year lows in
February and March.
    EQT is currently the biggest U.S. gas producer and Chesapeake is on track to become the biggest producer after its merger with
Southwestern Energy.
    Front-month gas futures for June delivery on the New York Mercantile Exchange rose 9.4 cents, or 4.9%, to $2.026 per
million British thermal units (mmBtu) at 10:44 a.m. EDT (1444 GMT).
        A lack of rapid price moves in recent weeks has cut the front-month's 30-day implied volatility to 51.6%, its
lowest level since March 2022.
    The market uses implied volatility to estimate likely price changes in the future. At-the-money 30-day implied volatility, a
determinant of an option's premium, has averaged 60.0% so far in 2024, down from 70.3% in 2023 and a five-year (2019-2023) average
of 60.1%.
    
    SUPPLY AND DEMAND
    Financial firm LSEG said gas output in the Lower 48 U.S. states fell to an average of 95.7 billion cubic feet per day (bcfd)
so far in May, down from 98.1 bcfd in April. That compares with a monthly record of 105.5 bcfd in December 2023.
    On a daily basis, output was on track to drop by 2.1 bcfd over the past eight days to a preliminary 15-week low of 95.6 bcfd
on Thursday.
    Meteorologists projected weather across the Lower 48 states would remain mostly warmer than normal through May 10 before
turning to near-normal levels in the May 11-17 period.
    LSEG forecast gas demand in the Lower 48, including exports, would rise from 91.6 bcfd this week to 92.5 bcfd next week. The
forecast for next week was higher than LSEG's outlook on Wednesday.
    Gas flows to the seven big U.S. LNG export plants rose from an average of 11.9 bcfd in April to 12.2 bcfd so far in May with
the slow return to service of Freeport LNG's plant in Texas. That compares with a monthly record of 14.7 bcfd in December.
    The U.S. became the world's biggest LNG supplier in 2023, ahead of recent leaders Australia and Qatar, as much higher global
prices fed demand for more exports due in part to supply disruptions and sanctions linked to Russia's war in Ukraine.
    Gas was trading around $10 per mmBtu at both the Dutch Title Transfer Facility (TTF) benchmark in Europe and the
Japan Korea Marker (JKM) benchmark in Asia.
                
                                                                   Week ended   Week ended    Year ago     Five-year         
                                                                     Apr 26       Apr 19       Apr 26       average    
                                                                     Actual       Actual                    Apr 26     
 U.S. weekly natgas storage change (bcf):                             +59           +92          +62          +72           
 U.S. total natgas in storage (bcf):                                 2,484         2,425        2,048        1,842          
 U.S. total storage versus 5-year average                            34.9%         37.0%                                     
                                                                                                                             
                                                                                                                             
 Global Gas Benchmark Futures ($ per mmBtu)                       Current Day    Prior Day   This Month   Prior Year    Five-Year
                                                                                              Last Year     Average      Average
                                                                                                             2023      (2018-2022)
 Henry Hub                                                            1.96         1.93         2.30         2.66         3.60
 Title Transfer Facility (TTF)                                        9.39         8.99         9.97         13.04        14.39
 Japan Korea Marker (JKM)                                            10.24         10.34        10.45        14.39        14.31
                                                                                                                             
                                                                                                                             
 LSEG Heating (HDD), Cooling (CDD) and Total (TDD) Degree Days                                                               
 Two-Week Total Forecast                                          Current Day    Prior Day   Prior Year     10-Year      30-Year
                                                                                                             Norm         Norm
 U.S. GFS HDDs                                                         59           56           89           96           83
 U.S. GFS CDDs                                                         80           80           59           59           66
 U.S. GFS TDDs                                                        139           136          148          155          149
                                                                                                                             
 LSEG U.S. Weekly GFS Supply and Demand Forecasts                                                                            
                                                                   Prior Week     Current     Next Week    This Week    Five-Year
                                                                                   Week                    Last Year   (2019-2023)
                                                                                                                       Average For
                                                                                                                          Month
 U.S. Supply (bcfd)                                                                                                               
 U.S. Lower 48 Dry Production                                             97.0         96.6         96.6        103.1         94.4
 U.S. Imports from Canada                                                  7.1          7.1          6.3          8.2          7.5
 U.S. LNG Imports                                                          0.0          0.0          0.0          0.0          0.0
 Total U.S. Supply                                                       104.1        103.7        102.9        111.3        101.9
                                                                                                                                  
 U.S. Demand (bcfd)                                                                                                               
 U.S. Exports to Canada                                                    2.1          2.1          1.8          2.1          2.4
 U.S. Exports to Mexico                                                    6.8          5.9          6.3          6.1          5.6
 U.S. LNG Exports                                                         11.7         12.3         12.1         13.4          8.8
 U.S. Commercial                                                           7.8          5.9          5.6          7.2          5.8
 U.S. Residential                                                         10.1          6.3          5.8          9.2          6.9
 U.S. Power Plant                                                         28.6         30.6         32.4         29.1         28.4
 U.S. Industrial                                                          23.3         21.8         21.7         22.0         21.5
 U.S. Plant Fuel                                                           4.8          4.8          4.8          4.8          4.8
 U.S. Pipe Distribution                                                    2.0          1.9          1.9          1.9          1.9
 U.S. Vehicle Fuel                                                         0.1          0.1          0.1          0.1          0.1
 Total U.S. Consumption                                                   76.9         71.3         72.3         74.3         69.4
 Total U.S. Demand                                                        97.4         91.6         92.5         95.9         86.2
                                                                                                                                  
                                                                                                                       
 U.S. Northwest River Forecast Center (NWRFC) at The Dalles Dam   Current Day   Prior Day       2023      2022         2021      
                                                                  % of Normal   % of Normal  % of Normal  % of Normal  % of Normal
                                                                    Forecast     Forecast      Actual       Actual       Actual
 Apr-Sep                                                               80           79           83           107          81
 Jan-Jul                                                               81           80           77           102          79
 Oct-Sep                                                               82           81           76           103          81
                                                                                                                        
                                                                                                                        
 U.S. weekly power generation percent by fuel - EIA                                                                               
                                                                   Week ended   Week ended   Week ended   Week ended   Week ended
                                                                     May 3        Apr 26       Apr 19       Apr 12        Apr 5
 Wind                                                                  15           16           16           16           15
 Solar                                                                 6             6            6            6            5
 Hydro                                                                 7             7            7            7            7
 Other                                                                 2             1            2            1            1
 Petroleum                                                             0             0            0            0            0
 Natural Gas                                                           39           37           37           37           38
 Coal                                                                  13           13           13           13           13
 Nuclear                                                               19           19           19           20           20
                                                                                                                             
 SNL U.S. Natural Gas Next-Day Prices ($ per mmBtu)                                                                          
 Hub                                                              Current Day    Prior Day                                   
 Henry Hub                                                   1.63         1.68                                       
 Transco Z6 New York                                        1.40         1.48                                       
 PG&E Citygate                                             2.23         2.24                                       
 Eastern Gas (old Dominion South)                         1.37         1.43                                       
 Chicago Citygate                                           1.41         1.47                                       
 Algonquin Citygate                                         1.40         1.71                                       
 SoCal Citygate                                           1.47         1.51                                       
 Waha Hub                                                 0.58         0.11                                       
 AECO                                                     0.97         0.91                                       
                                                                                                                                  
 SNL U.S. Power Next-Day Prices ($ per megawatt-hour)                                                                             
 Hub                                                              Current Day    Prior Day                                        
 New England                                             25.25        29.00                                       
 PJM West                                                41.75        33.50                                       
 Ercot North                                             82.00        15.75                                       
 Mid C                                                   59.50        57.00                                       
 Palo Verde                                               3.00         2.25                                       
 SP-15                                                    9.25         2.25                                       
 
 (Reporting by Scott DiSavino; Editing by Paul Simao)