The Collaborative International Dictionary of English v.0.48:

Well \Well\, v. i. [imp. & p. p. Welled; p. pr. & vb. n.
   Welling.] [OE. wellen, AS. wyllan, wellan, fr. weallan;
   akin to OFries. walla, OS. & OHG. wallan, G. wallen, Icel.
   vella, G. welle, wave, OHG. wella, walm, AS. wylm; cf. L.
   volvere to roll, Gr. ? to inwrap, ? to roll. Cf. Voluble,
   Wallop to boil, Wallow, Weld of metal.]
   To issue forth, as water from the earth; to flow; to spring.
   "[Blood] welled from out the wound." --Dryden. "[Yon spring]
   wells softly forth." --Bryant.
   [1913 Webster]

         From his two springs in Gojam's sunny realm,
         Pure welling out, he through the lucid lake
         Of fair Dambea rolls his infant streams. --Thomson.
   [1913 Webster]

U.S. Gazetteer Places (2000):

Welling, OK -- U.S. Census Designated Place in Oklahoma
   Population (2000):    669
   Housing Units (2000): 306
   Land area (2000):     29.566779 sq. miles (76.577604 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    29.566779 sq. miles (76.577604 sq. km)
   FIPS code:            79850
   Located within:       Oklahoma (OK), FIPS 40
   Location:             35.850112 N, 94.841913 W
   ZIP Codes (1990):     74471
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Welling, OK
    Welling