It seems like the PAO Bueng Kan (องค์การบริหารส่วนจังหวัดบึงกาฬ) does not want to wait until the official seal of the province is finalized, and unlike most other provinces goes for a seal with an artwork differing from that of the corresponding provincial seal. I have stumbled on a news posting on the website of the Bueng Kan Provincial Office of Non-Formal and Informal Education titled ประชาสัมพันธ์ประกวดตราเครื่องหมายขององค์การบริหารส่วนจังหวัดบึงกาฬ (Announce of contest [to design] emblem of PAO Bueng Kan).
However before you rush to check out the PDF which contains the rules of the contest and start drawing sketches - I discovered this news so late that today is already the deadline to submit the proposals, so unless they got no worthy designs the logo will be known soon. The winning design will be awarded 10,000 baht (360 US$), though I have no idea of the normal prices of logo designers in Thailand.
The logo is supposed to be either round or an ellipse with a maximum diameter of 5 centimeter, the name "Bueng Kan PAO" in the border, and for the motive inside has to choose items which have a connection to the province.
Another information gained from the PDF - the Bueng Kan PAO has its (temporary) office at plot 198 in Mu 8 of Bueng Kan subdistrict, thus not in the district office like the preliminary province administration. However, I have no idea where this office location is on Google Earth, as there's no easy way to translate a Thai address into coordinates.