The Oklahoma Democratic primary, 2004, part of the process of selecting that party's nominee for President of the United States, took place on February 3, one of the seven nominating contests of 2004's "Mini-Tuesday".
 The primary election chose 40 pledged delegates to represent Oklahoma at the 2004 Democratic National Convention.
 The remainder of Oklahoma's 47 delegates consisted of unpledged superdelegates not bound by the results of the primary.
 The election was a closed primary, meaning that only registered Democrats could vote in this election.
 Wesley Clark won the primary by a razor-thin margin over John Edwards.
The 2008 Vermont Democratic primary was an open primary that took place on March 4, 2008.
 Barack Obama won the primary, his only decisive win among the four March 4 contests.
 The primary determined the 15 pledged delegates that represented Vermont at the 2008 Democratic National Convention.
 The delegates were awarded to the candidates, Obama and Hillary Clinton, on a proportional basis.
 Vermont also sent 8 unpledged "superdelegates", to the convention not bound by the results of the primary.
The 2008 Hawaii Democratic Presidential Caucuses took place on February 19, 2008, with 20 pledged delegates at stake.
 The winner in each of Hawaii's two congressional districts was awarded all of that district's delegates, totaling 13.
 Another seven delegates were awarded to both candidates at the Hawaii Democratic Party State Convention on May 23–25, 2008.
 These 20 delegates represented Hawaii at the Democratic National Convention in Denver, Colorado.
 Nine other unpledged delegates, known as superdelegates, also attended the convention and cast their votes as well.
The 2008 Utah Democratic primary took place on February 5, 2008, with the votes of 23 pledged delegates to the 2008 Democratic National Convention at stake.
 The primary was one of many held on Super Tuesday.
 Barack Obama won the primary.
The Oklahoma Democratic primary, 2008, part of the process of selecting that party's nominee for President of the United States, took place on February 5, one of the many nominating contests of 2008's "Super Tuesday".
 The primary election chose 38 pledged delegates to represent Oklahoma at the 2008 Democratic National Convention.
 The remainder of Oklahoma's 47 delegates consisted of unpledged superdelegates not bound by the results of the primary.
 The election was a closed primary, meaning that only registered Democrats could vote in this election.
 Hillary Clinton won the primary by a significant margin.
The 2008 Puerto Rico Democratic primary took place on June 1, 2008.
 It was an open primary.
 Puerto Rico initially planned to hold caucuses, as was done in 2000 and 2004, on June 7, 2008.
 In December 2007, an error in the plan was discovered; the caucus date should have read June 1, 2008.
 Puerto Rico also decided to conduct a primary, rather than caucuses.
 Puerto Rico sent 55 pledged delegates to the 2008 Democratic National Convention.
 These delegates were allotted on a proportional basis.
 The territory's delegation also included eight unpledged "superdelegates".
 Puerto Rico also selected one unpledged add-on delegate.
 Selection of the unpledged add-on delegate occurred at the Assembly of the Democratic Party of the Commonwealth of Puerto Rico on June 21, 2008 in San Juan.
 Polls were open from 8:00 am to 3:00 pm, prevailing local time, Atlantic Standard Time (AST) (UTC-4, same as Eastern Daylight Time).
 Hillary Clinton won the primary.
The United States 2008 Democratic National Convention was a quadrennial presidential nominating convention of the Democratic Party where it adopted its national platform and officially nominated its candidates for President and Vice President.
 The convention was held in Denver, Colorado, from August 25 to August 28, 2008, at Pepsi Center.
 Senator Barack Obama from Illinois gave his acceptance speech on August 28 at Invesco Field in what the party called an "Open Convention".
 Denver last hosted the Democratic National Convention in 1908.
 Obama became the party's first African-American nominee for President.
 Senator Joe Biden from Delaware was nominated for Vice President.
The Alaska Democratic Caucuses took place Super Tuesday, February 5, 2008.
 This was the first time that Democrats in Alaska participated in Super Tuesday, and the large turnout forced at least one caucusing site to delay closing its doors far beyond the 6 p.m. deadline.
 The state had a total of 13 delegates at stake.
 Barack Obama won the Alaska Democratic Caucuses and secured 9 delegates to the Democratic National Convention while Hillary Clinton took 4 delegates.
 However, the caucus was non-binding, and Alaska's Democratic State Convention in May awarded Obama 10 pledged delegates.
The 2008 Guam Democratic territorial convention took place on May 3, 2008.
 Senator Barack Obama won by 7 votes, a margin of less than 0.2%.
 This resulted in each candidate getting 2 pledged delegates to the 2008 Democratic National Convention.
 Guam Democrats also sent five unpledged superdelegates to the convention.
The 2008 Wyoming Democratic caucuses were a series of events designed to determine the delegates that the Wyoming Democratic Party sent to the 2008 Democratic National Convention.
 The party was allocated seven pledged delegates to presidential candidates on March 8 during the Wyoming Democratic County Caucuses.
 The remaining five pledged delegates were allocated on May 24 during the Wyoming Democratic State Convention.
 There were six Wyoming superdelegates, so the whole delegation was composed of 18 delegates.

Question: Where did Oklahoma send it's 38 pledged delegates to represent them in the 2008 Democratic National Convention?
Answer: Denver, Colorado