By Scott DiSavino
       Dec 21 (Reuters) - U.S. natural gas futures gained about 2% on Thursday on a slightly bigger-than-expected storage
withdrawal, forecasts for colder weather and higher heating demand in early January than previously expected and as record amount
of gas continued to flow to liquefied natural gas (LNG) export plants.
    The U.S. Energy Information Administration (EIA) said utilities pulled 87 billion cubic feet (bcf) of gas from storage during
the week ended Dec. 15.
    That was higher than the 80-bcf withdrawal analysts forecast in a Reuters poll and compares with a decrease of 82 bcf in the
same week last year and a five-year (2018-2022) average decline of 107 bcf.
    Last week's decrease cut stockpiles to 3.577 trillion cubic feet (tcf), which was still 8.5% above the five-year average of
3.297 tcf for the time of year. Analysts said last week's withdrawal was smaller than usual for this time of year because
warmer-than-normal weather kept heating demand low.
    Front-month gas futures for January delivery on the New York Mercantile Exchange (NYMEX) were up 4.5 cents, or 1.8%, at
$2.492 per million British thermal units (mmBtu) at 10:39 a.m. EST (1539 GMT).
    Before EIA released the storage report, futures were up 1.1%.
    Investor interest in trading gas has increased in recent weeks with open interest in NYMEX futures at a 27-month high of 1.447
million contracts on Dec. 19 and shares outstanding in the U.S. Natural Gas Fund (UNG) at a record 201.2 million contracts
on Dec. 18. UNG is an exchange traded fund (ETF) designed to track the daily price movements of gas.
    Record production and ample supplies of gas in storage have weighed on gas prices for weeks, prompting some traders to
forecast that futures for this winter (November-March) have already peaked at $3.608 per mmBtu on Nov. 1.
    Looking ahead, analysts project U.S. gas prices will rise in coming years as new LNG export plants enter service in the U.S.,
Canada and Mexico to meet rising global demand of the fuel.
    But expected delays at Exxon Mobil/QatarEnergy's Golden Pass LNG export plant in Texas and Venture Global LNG's
Plaquemines in Louisiana have caused some analysts to reduce their forecasts for U.S. gas demand and prices in 2024.
    
    SUPPLY AND DEMAND
    Financial firm LSEG said average gas output in the lower 48 U.S. states rose to 108.6 billion cubic feet per day (bcfd) so far
in December from a record 108.3 bcfd in November.
    Meteorologists projected the weather would remain warmer than normal through Dec. 31 before turning near-normal to colder than
normal from Jan. 1-5.
    LSEG forecast U.S. gas demand in the Lower 48 states, including exports, would drop from 126.2 bcfd this week to 120.8 bcfd
next week as many businesses and government offices shut for the Christmas holiday. Those forecasts were higher than LSEG's
outlook on Wednesday.
    U.S. pipeline exports to Mexico fell to an average of 3.9 bcfd so far in December, down from 5.6 bcfd in November and a record
7.0 bcfd in August.
    Analysts, however, expect exports to Mexico to rise in coming months once U.S. energy company New Fortress Energy's
plant in Altamira starts pulling in U.S. gas to turn into LNG for export in December.
    Gas flows to the seven big U.S. LNG export plants rose to an average of 14.6 bcfd so far in December, up from a record 14.3
bcfd in November.
    
                                                                   Week ended   Week ended    Year ago     Five-year         
                                                                     Dec 15        Dec 8       Dec 15       average    
                                                                     Actual       Actual                    Dec 15     
 U.S. weekly natgas storage change (bcf):                             -87           -55          -82         -107            
 U.S. total natgas in storage (bcf):                                 3,577         3,664        3,337        3,297           
 U.S. total storage versus 5-year average                             8.5%         7.6%                                      
                                                                                                                             
                                                                                                                             
 Global Gas Benchmark Futures ($ per mmBtu)                       Current Day    Prior Day   This Month   Prior Year    Five Year
                                                                                              Last Year     Average      Average
                                                                                                             2022      (2017-2021)
 Henry Hub                                                            2.48         2.45         5.77         6.54         2.89
 Title Transfer Facility (TTF)                                       11.39         10.87        36.68        40.50        7.49
 Japan Korea Marker (JKM)                                            11.81         11.78        32.34        34.11        8.95
                                                                                                                             
                                                                                                                             
 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                                                        360           348          462          408          428
 U.S. GFS CDDs                                                         1             1            3            5            4
 U.S. GFS TDDs                                                        361           349          365          413          432
                                                                                                                             
 LSEG U.S. Weekly GFS Supply and Demand Forecasts                                                                            
                                                                   Prior Week     Current     Next Week    This Week    Five-Year
                                                                                   Week                    Last Year   (2018-2022)
                                                                                                                       Average For
                                                                                                                          Month
 U.S. Supply (bcfd)                                                                                                               
 U.S. Lower 48 Dry Production                                            108.9        108.6        108.7         98.6         94.2
 U.S. Imports from Canada8                                                 8.6          8.5          8.6         10.1          9.1
 U.S. LNG Imports                                                          0.0          0.0          0.0          0.0          0.2
 Total U.S. Supply                                                       117.5        117.1        117.2        108.7        103.5
                                                                                                                                  
 U.S. Demand (bcfd)                                                                                                               
 U.S. Exports to Canada                                                    3.4          3.2          3.2          2.1          3.2
 U.S. Exports to Mexico                                                    3.8          3.9          4.3          5.0          5.0
 U.S. LNG Exports                                                         14.7         15.0         14.7         12.1          8.6
 U.S. Commercial                                                          13.8         13.8         12.8         20.4         14.6
 U.S. Residential                                                         22.3         22.1         20.3         35.6         24.7
 U.S. Power Plant                                                         34.1         35.2         33.2         34.9         28.6
 U.S. Industrial                                                          24.7         24.7         24.1         27.1         25.0
 U.S. Plant Fuel                                                           5.4          5.4          5.4          5.4          5.3
 U.S. Pipe Distribution                                                    2.7          2.8          2.6          2.7          2.9
 U.S. Vehicle Fuel                                                         0.1          0.1          0.1          0.1          0.1
 Total U.S. Consumption                                                  103.1        104.0         98.6        126.2        101.2
 Total U.S. Demand                                                       125.0        126.2        120.8        145.4        118.0
                                                                                                                                  
                                                                                                                       
 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           80           83           107          81
 Jan-Jul                                                               79           80           77           102          79
 Oct-Sep                                                               81           81           76           103          81
                                                                                                                        
                                                                                                                        
 U.S. weekly power generation percent by fuel - EIA                                                                               
                                                                   Week ended   Week ended   Week ended   Week ended   Week ended
                                                                     Dec 22       Dec 15        Dec 8        Dec 1       Nov 24
 Wind                                                                  12           11           12           10           11
 Solar                                                                 2             3            3            3            3
 Hydro                                                                 6             6            5            6            6
 Other                                                                 2             2            2            2            2
 Petroleum                                                             0             0            0            0            0
 Natural Gas                                                           40           41           40           42           39
 Coal                                                                  17           17           17           17           16
 Nuclear                                                               20           20           21           20           22
                                                                                                                             
 SNL U.S. Natural Gas Next-Day Prices ($ per mmBtu)                                                                          
 Hub                                                              Current Day    Prior Day                                   
 Henry Hub                                                   2.48         2.44                                       
 Transco Z6 New York                                        2.55         2.20                                       
 PG&E Citygate                                             3.66         3.97                                       
 Eastern Gas (old Dominion South)                         1.91         1.85                                       
 Chicago Citygate                                           2.18         2.11                                       
 Algonquin Citygate                                         5.13         2.99                                       
 SoCal Citygate                                           3.45         3.60                                       
 Waha Hub                                                 1.59         1.33                                       
 AECO                                                     1.26         1.25                                       
                                                                                                                                  
 SNL U.S. Power Next-Day Prices ($ per megawatt-hour)                                                                             
 Hub                                                              Current Day    Prior Day                                        
 New England                                             51.50        35.00                                       
 PJM West                                                37.00        37.75                                       
 Ercot North                                             21.00        17.25                                       
 Mid C                                                   43.50        51.00                                       
 Palo Verde                                              40.00        43.00                                       
 SP-15                                                   48.25        51.00                                       
 
 (Reporting by Scott DiSavino; Editing by Andrea Ricci and Jonathan Oatis)