NEW MEXICO COM A #002
API 3004521537 · San Juan County, New Mexico · Aztec district · State lease
ActiveGasPlugged 9999-12-31
API
3004521537
Operator
ENDURING RESOURCES, LLC
Location (PLSS)
O-32-29N-10W
Spudded
1974-08-23
Measured depth
1,770 ft
True vertical depth
1,770 ft
Pools
[71200] AZTEC FRUITLAND SAND (GAS)
Monthly production
398 months filed with the Oil Conservation Division, Dec 1992 to Jun 2026. Oil and water are barrels; gas is MCF — the three are never added.
Cumulative oil
0 bbl
Cumulative gas
1,315,651 MCF
Cumulative water
30 bbl
| Month | Oil (bbl) | Gas (MCF) | Water (bbl) | Days |
|---|---|---|---|---|
| Jun 2026 | — | 992 | — | 30 |
| May 2026 | — | 1,444 | — | 31 |
| Apr 2026 | — | 1,432 | — | 30 |
| Mar 2026 | — | 1,283 | — | 31 |
| Feb 2026 | — | 1,166 | — | 28 |
| Jan 2026 | — | 1,180 | — | 31 |
| Dec 2025 | — | 713 | — | 31 |
| Nov 2025 | — | 1,200 | — | 30 |
| Oct 2025 | — | 1,032 | — | 31 |
| Sep 2025 | — | 1,015 | — | 30 |
| Aug 2025 | — | 445 | — | 31 |
| Jul 2025 | — | 617 | — | 31 |
| Jun 2025 | — | 876 | — | 30 |
| May 2025 | — | 1,131 | — | 31 |
| Apr 2025 | — | 533 | — | 27 |
| Mar 2025 | — | 63 | — | 6 |
| Feb 2025 | — | 0 | — | 0 |
| Jan 2025 | — | 0 | — | 0 |
| Dec 2024 | — | 198 | 10 | 31 |
| Nov 2024 | — | 590 | — | 30 |
| Oct 2024 | — | 869 | — | 31 |
| Sep 2024 | — | 1,128 | — | 30 |
| Aug 2024 | — | 1,317 | — | 31 |
| Jul 2024 | — | 1,238 | — | 31 |
| Jun 2024 | — | 1,553 | — | 30 |
| May 2024 | — | 1,688 | — | 31 |
| Apr 2024 | — | 1,258 | — | 30 |
| Mar 2024 | — | 1,397 | — | 31 |
| Feb 2024 | — | 1,079 | — | 29 |
| Jan 2024 | — | 1,158 | — | 31 |
| Dec 2023 | — | 1,477 | — | 31 |
| Nov 2023 | — | 1,448 | — | 30 |
| Oct 2023 | — | 1,719 | — | 31 |
| Sep 2023 | — | 1,706 | — | 30 |
| Aug 2023 | — | 1,453 | — | 31 |
| Jul 2023 | — | 1,212 | — | 31 |
| Jun 2023 | — | 1,419 | — | 30 |
| May 2023 | — | 1,036 | — | 31 |
| Apr 2023 | — | 905 | — | 30 |
| Mar 2023 | — | 891 | — | 31 |
| Feb 2023 | — | 1,379 | — | 28 |
| Jan 2023 | — | 1,334 | — | 31 |
| Dec 2022 | — | 1,160 | — | 31 |
| Nov 2022 | — | 1,695 | — | 30 |
| Oct 2022 | — | 1,552 | — | 31 |
| Sep 2022 | — | 1,152 | — | 30 |
| Aug 2022 | — | 1,790 | — | 31 |
| Jul 2022 | — | 1,409 | — | 31 |
| Jun 2022 | — | 644 | — | 30 |
| May 2022 | — | 1,787 | — | 31 |
| Apr 2022 | — | 1,650 | — | 30 |
| Mar 2022 | — | 1,725 | — | 31 |
| Feb 2022 | — | 1,676 | — | 28 |
| Jan 2022 | — | 1,255 | — | 31 |
| Dec 2021 | — | 1,761 | — | 31 |
| Nov 2021 | — | 1,845 | — | 30 |
| Oct 2021 | — | 1,911 | — | 31 |
| Sep 2021 | — | 1,857 | — | 30 |
| Aug 2021 | — | 1,958 | — | 31 |
| Jul 2021 | — | 1,514 | — | 31 |
| Jun 2021 | — | 1,875 | — | 30 |
| May 2021 | — | 1,954 | — | 31 |
| Apr 2021 | — | 1,738 | — | 30 |
| Mar 2021 | — | 1,994 | — | 31 |
| Feb 2021 | — | 1,863 | — | 28 |
| Jan 2021 | — | 1,795 | — | 31 |
| Dec 2020 | — | 1,172 | — | 31 |
| Nov 2020 | — | 1,731 | — | 30 |
| Oct 2020 | — | 1,911 | — | 31 |
| Sep 2020 | — | 1,457 | — | 30 |
| Aug 2020 | — | 1,498 | — | 31 |
| Jul 2020 | — | 1,973 | — | 31 |
| Jun 2020 | — | 1,784 | — | 30 |
| May 2020 | — | 1,397 | — | 31 |
| Apr 2020 | — | 551 | — | 26 |
| Mar 2020 | — | 472 | — | 8 |
| Feb 2020 | — | 1,790 | — | 29 |
| Jan 2020 | — | 1,822 | — | 31 |
| Dec 2019 | — | 1,973 | — | 31 |
| Nov 2019 | — | 1,841 | 2 | 30 |
| Oct 2019 | — | 1,892 | — | 31 |
| Sep 2019 | — | 1,793 | — | 30 |
| Aug 2019 | — | 1,565 | — | 31 |
| Jul 2019 | — | 1,953 | — | 31 |
| Jun 2019 | — | 1,816 | — | 30 |
| May 2019 | — | 1,685 | — | 31 |
| Apr 2019 | — | 1,893 | 2 | 30 |
| Mar 2019 | — | 1,930 | — | 31 |
| Feb 2019 | — | 1,657 | — | 28 |
| Jan 2019 | — | 1,833 | — | 31 |
| Dec 2018 | — | 1,620 | — | 31 |
| Nov 2018 | — | 1,761 | — | 30 |
| Oct 2018 | — | 1,967 | — | 31 |
| Sep 2018 | — | 1,818 | — | 30 |
| Aug 2018 | — | 1,906 | — | 31 |
| Jul 2018 | — | 1,956 | — | 31 |
| Jun 2018 | — | 1,924 | — | 30 |
| May 2018 | — | 2,021 | — | 31 |
| Apr 2018 | — | 1,964 | — | 30 |
| Mar 2018 | — | 2,063 | — | 31 |
| Feb 2018 | — | 1,777 | — | 28 |
| Jan 2018 | — | 2,042 | — | 31 |
| Dec 2017 | — | 1,950 | — | 31 |
| Nov 2017 | — | 1,855 | — | 30 |
| Oct 2017 | — | 1,979 | — | 31 |
| Sep 2017 | — | 1,911 | — | 30 |
| Aug 2017 | — | 2,076 | — | 31 |
| Jul 2017 | — | 1,662 | — | 31 |
| Jun 2017 | — | 2,045 | — | 30 |
| May 2017 | — | 1,479 | — | 31 |
| Apr 2017 | — | 1,886 | — | 30 |
| Mar 2017 | — | 1,834 | — | 31 |
| Feb 2017 | — | 1,641 | — | 28 |
| Jan 2017 | — | 1,925 | — | 31 |
| Dec 2016 | — | 2,155 | — | 31 |
| Nov 2016 | — | 1,777 | — | 30 |
| Oct 2016 | — | 1,648 | — | 31 |
| Sep 2016 | — | 2,089 | — | 30 |
| Aug 2016 | — | 2,181 | — | 31 |
| Jul 2016 | — | 1,352 | — | 31 |
| Jun 2016 | — | 2,044 | — | 30 |
| May 2016 | — | 1,905 | — | 31 |
| Apr 2016 | — | 1,956 | — | 30 |
| Mar 2016 | — | 2,071 | — | 31 |
| Feb 2016 | — | 1,968 | — | 29 |
| Jan 2016 | — | 1,702 | — | 31 |
| Dec 2015 | — | 1,871 | — | 31 |
| Nov 2015 | — | 2,111 | — | 30 |
| Oct 2015 | — | 1,548 | — | 31 |
| Sep 2015 | — | 2,076 | — | 30 |
| Aug 2015 | — | 1,929 | — | 31 |
| Jul 2015 | — | 2,187 | — | 31 |
| Jun 2015 | — | 1,467 | — | 30 |
| May 2015 | — | 2,039 | 6 | 31 |
| Apr 2015 | — | 2,102 | 5 | 30 |
| Mar 2015 | — | 2,094 | — | 31 |
| Feb 2015 | — | 2,003 | — | 28 |
| Jan 2015 | — | 1,875 | — | 31 |
| Dec 2014 | — | 1,760 | — | 31 |
| Nov 2014 | — | 2,122 | — | 30 |
| Oct 2014 | — | 1,871 | — | 19 |
| Sep 2014 | — | 2,120 | — | 30 |
| Aug 2014 | — | 2,040 | — | 31 |
| Jul 2014 | — | 2,213 | — | 31 |
| Jun 2014 | — | 1,996 | — | 30 |
| May 2014 | — | 2,188 | — | 31 |
| Apr 2014 | — | 2,128 | — | 30 |
| Mar 2014 | — | 2,228 | — | 31 |
| Feb 2014 | — | 1,926 | — | 28 |
| Jan 2014 | — | 1,880 | — | 31 |
| Dec 2013 | — | 2,087 | — | 31 |
| Nov 2013 | — | 2,088 | — | 30 |
| Oct 2013 | — | 2,273 | — | 31 |
| Sep 2013 | — | 1,810 | — | 30 |
| Aug 2013 | — | 2,233 | — | 31 |
| Jul 2013 | — | 2,181 | — | 31 |
| Jun 2013 | — | 2,073 | — | 30 |
| May 2013 | — | 2,244 | — | 31 |
| Apr 2013 | — | 2,213 | — | 30 |
| Mar 2013 | — | 1,812 | — | 31 |
| Feb 2013 | — | 1,564 | — | 28 |
| Jan 2013 | — | 1,608 | — | 31 |
| Dec 2012 | — | 1,109 | — | 31 |
| Nov 2012 | — | 2,088 | — | 30 |
| Oct 2012 | — | 1,955 | — | 31 |
| Sep 2012 | — | 2,168 | — | 30 |
| Jul 2012 | — | 1,701 | — | 31 |
| Jun 2012 | — | 952 | — | 30 |
| May 2012 | — | 2,251 | — | 31 |
| Apr 2012 | — | 1,479 | — | 30 |
| Mar 2012 | — | 1,747 | — | 31 |
| Feb 2012 | — | 2,086 | — | 29 |
| Jan 2012 | — | 1,865 | — | 31 |
| Dec 2011 | — | 2,267 | — | 31 |
| Nov 2011 | — | 2,079 | — | 30 |
| Oct 2011 | — | 2,229 | — | 31 |
| Sep 2011 | — | 2,160 | 1 | 30 |
| Aug 2011 | — | 1,966 | 1 | 31 |
| Jul 2011 | — | 2,232 | 1 | 31 |
| Jun 2011 | — | 1,670 | 1 | 30 |
| May 2011 | — | 2,153 | 1 | 31 |
| Apr 2011 | — | 2,074 | — | 30 |
| Mar 2011 | — | 1,998 | — | 31 |
| Feb 2011 | — | 1,681 | — | 28 |
| Jan 2011 | — | 1,822 | — | 31 |
| Dec 2010 | — | 1,840 | — | 29 |
| Nov 2010 | — | 1,609 | — | 30 |
| Oct 2010 | — | 2,010 | — | 31 |
| Aug 2010 | — | 1,946 | — | 31 |
| Jul 2010 | — | 2,074 | — | 31 |
| Jun 2010 | — | 1,852 | — | 30 |
| May 2010 | — | 1,993 | — | 31 |
| Apr 2010 | — | 2,033 | — | 30 |
| Mar 2010 | — | 2,035 | — | 31 |
| Feb 2010 | — | 1,936 | — | 28 |
| Jan 2010 | — | 2,185 | — | 31 |
| Dec 2009 | — | 1,794 | — | 31 |
| Nov 2009 | — | 2,237 | — | 30 |
| Oct 2009 | — | 2,364 | — | 31 |
| Sep 2009 | — | 2,242 | — | 30 |
| Aug 2009 | — | 2,396 | — | 31 |
| Jul 2009 | — | 2,240 | — | 31 |
| Jun 2009 | — | 2,242 | — | 30 |
| May 2009 | — | 2,174 | — | 31 |
| Apr 2009 | — | 2,097 | — | 30 |
| Mar 2009 | — | 2,177 | — | 31 |
| Feb 2009 | — | 1,952 | — | 28 |
| Jan 2009 | — | 2,184 | — | 31 |
| Dec 2008 | — | 2,231 | — | 31 |
| Nov 2008 | — | 2,162 | — | 30 |
| Oct 2008 | — | 2,235 | — | 31 |
| Sep 2008 | — | 2,042 | — | 30 |
| Aug 2008 | — | 2,162 | — | 31 |
| Jul 2008 | — | 2,315 | — | 31 |
| Jun 2008 | — | 2,443 | — | 30 |
| May 2008 | — | 2,622 | — | 31 |
| Apr 2008 | — | 2,541 | — | 30 |
| Mar 2008 | — | 2,679 | — | 31 |
| Feb 2008 | — | 2,641 | — | 29 |
| Jan 2008 | — | 2,052 | — | 31 |
| Dec 2007 | — | 2,696 | — | 31 |
| Nov 2007 | — | 2,673 | — | 30 |
| Oct 2007 | — | 2,976 | — | 31 |
| Sep 2007 | — | 1,609 | — | 24 |
| Aug 2007 | — | 1,711 | — | 26 |
| Jul 2007 | — | 1,646 | — | 31 |
| Jun 2007 | — | 2,240 | — | 30 |
| May 2007 | — | 2,497 | — | 31 |
| Apr 2007 | — | 1,561 | — | 30 |
| Mar 2007 | — | 1,903 | — | 31 |
| Feb 2007 | — | 2,535 | — | 28 |
| Jan 2007 | — | 1,758 | — | 27 |
| Dec 2006 | — | 2,653 | — | 31 |
| Nov 2006 | — | 2,460 | — | 30 |
| Oct 2006 | — | 2,831 | — | 31 |
| Sep 2006 | — | 2,444 | — | 30 |
| Aug 2006 | — | 2,459 | — | 29 |
| Jul 2006 | — | 2,734 | — | 31 |
| Jun 2006 | — | 2,338 | — | 30 |
| May 2006 | — | 2,366 | — | 31 |
| Apr 2006 | — | 2,545 | — | 30 |
| Mar 2006 | — | 2,501 | — | 31 |
| Feb 2006 | — | 1,873 | — | 28 |
| Jan 2006 | — | 2,223 | — | 30 |
| Dec 2005 | — | 1,745 | — | 31 |
| Nov 2005 | — | 1,965 | — | 30 |
| Oct 2005 | — | 2,474 | — | 31 |
| Sep 2005 | — | 1,130 | — | 30 |
| Aug 2005 | — | 1,257 | — | 31 |
| Jul 2005 | — | 2,052 | — | 31 |
| Jun 2005 | — | 2,368 | — | 30 |
| May 2005 | — | 2,216 | — | 31 |
| Apr 2005 | — | 1,924 | — | 30 |
| Mar 2005 | — | 1,800 | — | 31 |
| Feb 2005 | — | 2,389 | — | 28 |
| Jan 2005 | — | 2,500 | — | 31 |
| Dec 2004 | — | 2,906 | — | 31 |
| Nov 2004 | — | 2,942 | — | 30 |
| Oct 2004 | — | 2,328 | — | 31 |
| Sep 2004 | 0 | 2,889 | 0 | 30 |
| Aug 2004 | 0 | 2,583 | 0 | 31 |
| Jul 2004 | 0 | 2,580 | 0 | 31 |
| Jun 2004 | 0 | 2,882 | 0 | 30 |
| May 2004 | 0 | 2,972 | 0 | 31 |
| Apr 2004 | 0 | 2,572 | 0 | 30 |
| Mar 2004 | 0 | 3,045 | 0 | 31 |
| Feb 2004 | 0 | 2,795 | 0 | 29 |
| Jan 2004 | 0 | 3,101 | 0 | 31 |
| Nov 2003 | 0 | 3,012 | 0 | 30 |
| Oct 2003 | 0 | 2,891 | 0 | 31 |
| Sep 2003 | 0 | 3,114 | 0 | 30 |
| Aug 2003 | 0 | 2,090 | 0 | 31 |
| Jul 2003 | 0 | 2,984 | 0 | 31 |
| Jun 2003 | 0 | 2,959 | 0 | 30 |
| May 2003 | 0 | 3,138 | 0 | 31 |
| Apr 2003 | 0 | 2,935 | 0 | 30 |
| Mar 2003 | 0 | 3,135 | 0 | 31 |
| Feb 2003 | 0 | 2,844 | 0 | 28 |
| Jan 2003 | 0 | 2,413 | 0 | 31 |
| Dec 2002 | 0 | 2,581 | 0 | 31 |
| Nov 2002 | 0 | 2,994 | 0 | 30 |
| Oct 2002 | 0 | 3,144 | 0 | 31 |
| Sep 2002 | 0 | 3,062 | 0 | 30 |
| Aug 2002 | 0 | 3,169 | 0 | 31 |
| Jul 2002 | 0 | 3,123 | 0 | 31 |
| Jun 2002 | 0 | 2,927 | 0 | 30 |
| May 2002 | 0 | 3,155 | 0 | 31 |
| Apr 2002 | 0 | 2,693 | 0 | 30 |
| Mar 2002 | 0 | 3,137 | 0 | 31 |
| Feb 2002 | 0 | 2,923 | 0 | 28 |
| Jan 2002 | 0 | 3,249 | 0 | 31 |
| Dec 2001 | 0 | 3,224 | 0 | 31 |
| Nov 2001 | 0 | 2,609 | 0 | 30 |
| Oct 2001 | 0 | 3,147 | 0 | 31 |
| Sep 2001 | 0 | 2,990 | 0 | 30 |
| Aug 2001 | 0 | 3,213 | 0 | 31 |
| Jul 2001 | 0 | 3,289 | 0 | 31 |
| Jun 2001 | 0 | 2,629 | 0 | 30 |
| May 2001 | 0 | 2,868 | 0 | 31 |
| Apr 2001 | 0 | 3,035 | 0 | 30 |
| Mar 2001 | 0 | 3,135 | 0 | 31 |
| Feb 2001 | 0 | 2,859 | 0 | 28 |
| Jan 2001 | 0 | 2,854 | 0 | 31 |
| Dec 2000 | 0 | 3,284 | — | 31 |
| Nov 2000 | 0 | 3,153 | — | 30 |
| Oct 2000 | 0 | 3,064 | — | 31 |
| Sep 2000 | 0 | 3,180 | — | 30 |
| Aug 2000 | 0 | 3,378 | — | 31 |
| Jul 2000 | 0 | 2,953 | — | 31 |
| Jun 2000 | 0 | 2,649 | — | 30 |
| May 2000 | 0 | 2,865 | — | 31 |
| Apr 2000 | 0 | 3,148 | — | 30 |
| Mar 2000 | 0 | 2,508 | — | 31 |
| Feb 2000 | 0 | 2,998 | — | 29 |
| Jan 2000 | 0 | 3,192 | — | 31 |
| Dec 1999 | 0 | 3,125 | — | 31 |
| Nov 1999 | 0 | 3,061 | — | 30 |
| Oct 1999 | 0 | 3,175 | — | 31 |
| Sep 1999 | 0 | 3,136 | — | 30 |
| Aug 1999 | 0 | 2,583 | — | 31 |
| Jul 1999 | 0 | 2,420 | — | 31 |
| Jun 1999 | 0 | 2,517 | — | 30 |
| May 1999 | 0 | 2,445 | — | 31 |
| Apr 1999 | 0 | 2,490 | — | 30 |
| Mar 1999 | 0 | 2,337 | — | 31 |
| Feb 1999 | 0 | 2,344 | — | 28 |
| Jan 1999 | 0 | 2,404 | — | 31 |
| Dec 1998 | 0 | 2,836 | — | 31 |
| Nov 1998 | 0 | 2,775 | — | 30 |
| Oct 1998 | 0 | 1,825 | — | 31 |
| Sep 1998 | 0 | 540 | — | 30 |
| Aug 1998 | 0 | 412 | — | 31 |
| Jul 1998 | 0 | 663 | — | 31 |
| Jun 1998 | 0 | 867 | — | 30 |
| May 1998 | 0 | 945 | — | 31 |
| Apr 1998 | 0 | 1,642 | — | 30 |
| Mar 1998 | 0 | 1,417 | — | 31 |
| Feb 1998 | 0 | 1,221 | — | 28 |
| Jan 1998 | 0 | 1,357 | — | 31 |
| Dec 1997 | 0 | 1,452 | — | 31 |
| Nov 1997 | 0 | 1,778 | — | 30 |
| Oct 1997 | 0 | 1,762 | — | 31 |
| Sep 1997 | 0 | 1,246 | — | 30 |
| Aug 1997 | 0 | 1,568 | — | 31 |
| Jul 1997 | 0 | 888 | — | 24 |
| Jun 1997 | 0 | 1,332 | — | 30 |
| May 1997 | 0 | 1,626 | — | 31 |
| Apr 1997 | 0 | 1,540 | — | 30 |
| Mar 1997 | 0 | 1,856 | — | 31 |
| Feb 1997 | 0 | 1,627 | — | 28 |
| Jan 1997 | 0 | 1,804 | — | 31 |
| Dec 1996 | 0 | 1,852 | — | 31 |
| Nov 1996 | 0 | 1,723 | — | 30 |
| Oct 1996 | 0 | 1,756 | — | 31 |
| Sep 1996 | 0 | 1,279 | — | 25 |
| Aug 1996 | 0 | 2,128 | — | 31 |
| Jul 1996 | 0 | 1,686 | — | 31 |
| Jun 1996 | 0 | 2,104 | — | 30 |
| May 1996 | 0 | 2,223 | — | 31 |
| Apr 1996 | 0 | 1,973 | — | 30 |
| Mar 1996 | 0 | 2,076 | — | 31 |
| Feb 1996 | 0 | 2,155 | — | 29 |
| Jan 1996 | 0 | 2,289 | — | 31 |
| Dec 1995 | 0 | 2,124 | — | 31 |
| Nov 1995 | 0 | 2,057 | — | 30 |
| Aug 1995 | 0 | 1,179 | — | 31 |
| Jul 1995 | 0 | 1,463 | — | 31 |
| Jun 1995 | 0 | 1,558 | — | 30 |
| May 1995 | 0 | 1,855 | — | 31 |
| Apr 1995 | 0 | 2,093 | — | 30 |
| Mar 1995 | 0 | 2,340 | — | 31 |
| Feb 1995 | 0 | 1,945 | — | 28 |
| Jan 1995 | 0 | 2,328 | — | 31 |
| Dec 1994 | 0 | 2,205 | — | 31 |
| Nov 1994 | 0 | 2,214 | — | 30 |
| Oct 1994 | 0 | 2,376 | — | 31 |
| Sep 1994 | 0 | 1,576 | — | 23 |
| Aug 1994 | 0 | 1,869 | — | 31 |
| Jul 1994 | 0 | 1,971 | — | 31 |
| Jun 1994 | 0 | 1,438 | — | 18 |
| May 1994 | 0 | 2,164 | — | 31 |
| Apr 1994 | 0 | 2,269 | — | 30 |
| Mar 1994 | 0 | 2,426 | — | 31 |
| Feb 1994 | 0 | 2,155 | — | 28 |
| Jan 1994 | 0 | 2,326 | — | 31 |
| Dec 1993 | — | 2,265 | — | 31 |
| Nov 1993 | — | 2,361 | — | 30 |
| Oct 1993 | — | 2,167 | — | 31 |
| Sep 1993 | — | 2,033 | — | 30 |
| Aug 1993 | — | 2,062 | — | 31 |
| Jul 1993 | — | 1,658 | — | 31 |
| Jun 1993 | — | 1,727 | — | 30 |
| May 1993 | — | 2,027 | — | 31 |
| Apr 1993 | — | 1,356 | — | 30 |
| Mar 1993 | — | 2,278 | — | 31 |
| Feb 1993 | — | 2,315 | — | 28 |
| Jan 1993 | — | 2,582 | — | 31 |
| Dec 1992 | — | 521,224 | — | 99 |
A month with no figure filed no volume for that product. Statewide, 535 well-months carry two filings that disagree on the volume with nothing in the record to choose between them; those are excluded rather than guessed.
Location
36.677509, -107.905327 · O-32-29N-10W
New Mexico OCD data, corpus built 2026-08-18. API 04521537.