Question: Dogpatch USA was based on the comic strip that was distributed by which company?

Context paragraphs:
Li'l Abner: Li'l Abner was a satirical American comic strip that appeared in many newspapers in the United States, Canada and Europe, featuring a fictional clan of hillbillies in the impoverished mountain village of Dogpatch, USA.  Written and drawn by Al Capp (1909–1979), the strip ran for 43 years, from August 13, 1934 through November 13, 1977.  It was distributed by United Feature Syndicate.  Comic strips typically dealt with northern urban experiences before Capp introduced Li'l Abner, the first strip based in the South.  The comic strip had 60 million readers in over 900 American newspapers and 100 foreign papers in 28 countries.  Author M. Thomas Inge says Capp "had a profound influence on the way the world viewed the American South."

Marble Falls, Arkansas: Marble Falls (known as Marble City from 1840–1883, Willcockson from 1883–1934 and Dogpatch from 1966–1997) is an unincorporated community in Newton County, Arkansas, United States.  It lies along Arkansas's National Scenic 7 Byway between Harrison and Jasper.  The Marble Falls Post Office is located in the parking lot of the now defunct theme park called Dogpatch USA.  For a time, the town was known as Dogpatch to promote the theme park.

Dogpatch USA: Dogpatch USA is an abandoned theme park located in northwest Arkansas along State Highway 7 between the cities of Harrison and Jasper, an area known today as Marble Falls.  It was opened in 1968, and was based on the comic strip "Li'l Abner", created by cartoonist Al Capp and set in a fictional village called Dogpatch.

Snoopy's siblings: In Charles M. Schulz's comic strip "Peanuts", Snoopy was often stated to have seven siblings.  Five appeared at various times in the strip: four brothers, Andy, Marbles, Olaf, and Spike; and one sister, Belle.  The two others were never mentioned by name in the comic strip.  According to the 1991 TV special "Snoopy's Reunion", their names are Molly and Rover; however, their appearance is not considered canonical in the comic strip.  In the June 6, 1959 comic strip, following the birth of Charlie Brown's sister Sally, Snoopy remarks that he has no brothers or sisters, and is an "only dog."  However, in a March 18, 1971 strip, Snoopy writes in his autobiography: "I was born one bright Spring morning at the Daisy Hill Puppy Farm.  I was one of eight puppies."

Ikabod Bubwit: Ikabod Bubwit (literally "Ikabod the Small Rodent", "Ikabod the Small Rat", or "Ikabod the Mouse") is one of the most noteworthy and most memorable comic book, comic strip, and cartoon characters created in the 1980s by Nonoy Marcelo, one of the foremost cartoonists in the Philippines.  Ikabod Bubwit himself is considered as the most famous mouse character created by Marcelo.  In the comic strip Ikabod, Ikabod Bubwit was the representation of the humorous illustration of the socio-political woes of ordinary Filipinos, and the comic strip itself was used at times by Marcelo in re-imagining and portraying Filipino political figures, including Ferdinand Marcos, Cory Aquino, Joseph Estrada, and Gloria Macapagal Arroyo.  Ikabod Bubwit was portrayed by Marcelo as an “irreverent mouse” with “funny antics” who lived in Dagalandia (literally "Mouseland" or "Ratland").  Ikabod’s hometown, Dagalandia, was described as a “recast” of “the Philippines as a nation” with “an apt mirror image for the turbulent setting of the Philippines” during the present and in the past.  The satirical comic strip about Ikabod Bubwit ran from the late 1970s through 2002.

The Born Loser: The Born Loser is a newspaper comic strip created by Art Sansom in 1965.  His son, Chip Sansom, who started assisting on the strip in 1989, is the current artist.  The strip is distributed by United Features Syndicate.  The Sansoms won the 1987 National Cartoonists Society Humor Comic Strip Award and the 1990 Newspaper Comic Strip Award.

Al Capp: Alfred Gerald Caplin (September 28, 1909 – November 5, 1979), better known as Al Capp, was an American cartoonist and humorist best known for the satirical comic strip "Li'l Abner", which he created in 1934 and continued writing and (with help from assistants) drawing until 1977.  He also wrote the comic strips "Abbie an' Slats" (in the years 1937–45) and "Long Sam" (1954).  He won the National Cartoonists Society's Reuben Award in 1947 for Cartoonist of the Year, and their 1979 Elzie Segar Award, posthumously for his "unique and outstanding contribution to the profession of cartooning."  Comic strips dealt with northern urban experiences until the year Capp introduced "Li'l Abner," the first strip based in the South.  Although Capp was from Connecticut, he spent 43 years teaching the world about Dogpatch, reaching an estimated 60 million readers in over 900 American newspapers and 100 foreign papers in 28 countries.  M. Thomas Inge says Capp made a large personal fortune on the strip and "had a profound influence on the way the world viewed the American South."

The Bullshitters: Roll Out The Gunbarrel: The Bullshitters: Roll Out The Gunbarrel was a spoof of "The Professionals", first broadcast in 1984 on Channel 4.  Although it was made by many people behind "The Comic Strip", it did not feature the Comic Strip logo and is not considered by some to be part of the series.  However, it "was" included in the Comic Strip DVD box set (2005), and its lead characters Bonehead and Foyle reappeared in a later Comic Strip episode, "Detectives on the Edge of a Nervous Breakdown".  It was also represented as an episode of the show on "30 Years of The Comic Strip".

Tom Forman (cartoonist): Tom Forman (May 2, 1936 – May 18, 1996) was an American comic strip cartoonist, co-creator of the classic comic strip "Motley's Crew" along with Ben Templeton.  His pre-1997 take on the comic strip involved Mike Motley's career as a blue-collar worker, sports, and his friends.  After Forman died of cancer, the storylines of the comic strip he helped create became more feminine and had "touchy-feely" parts at various points in the storyline.  They dealt with being forced to say "hi" to the in-laws under embarrassing conditions, attending various weddings, and letting out bottled emotions.  This new spin on the comic strip alienated many older male viewers and may have led to its retirement on January 1, 2000.

Mystic Caverns and Crystal Dome: Mystic Caverns and Crystal Dome are show caves located between the cities of Jasper and Harrison, in the state of Arkansas, U.S., on the Arkansas Highway 7 Scenic Byway near the defunct amusement park Dogpatch USA.  Sometimes called "the twin caves" because they are within 400 ft of each other, the two caves maintain a year-round temperature of 58 °F, contain more formations per foot than any other caves in Arkansas, and are open for public tours year-round except during the January flooding season.

Supporting paragraphs: Dogpatch USA Li'l Abner
Answer: United Feature Syndicate