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The reporting person shall provide to the Securities and Exchange Commission, the Issuer, or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 14,226 shares of restricted stock granted to the reporting person on February 16, 2018 that vest on the third anniversary of the date of grant."}],"balance_after":382794,"source":{"system":"sec-edgar","filing":"0001520006-20-000060","document":"wf-form4_158378600175838.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1520006/000152000620000060/wf-form4_158378600175838.xml","form_type":"4"}},{"id":3219963,"issuer":{"id":3681,"kind":"organization","name":"Matador Resources Co"},"owners":[{"id":129246,"kind":"person","name":"Lancaster David E","position":1,"cik":"0001540524","reported_name":"Lancaster David E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Common Stock","published_at":"2020-03-09T20:33:54.000Z","date":"2020-03-06","kind":"purchase","acquired":true,"shares":2500,"price":8.41,"value":21025.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.39 to $8.43 per share, inclusive. The reporting person shall provide to the Securities and Exchange Commission, the Issuer, or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 14,226 shares of restricted stock granted to the reporting person on February 16, 2018 that vest on the third anniversary of the date of grant."}],"balance_after":380294,"source":{"system":"sec-edgar","filing":"0001520006-20-000060","document":"wf-form4_158378600175838.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1520006/000152000620000060/wf-form4_158378600175838.xml","form_type":"4"}},{"id":3252223,"issuer":{"id":3681,"kind":"organization","name":"Matador Resources Co"},"owners":[{"id":129246,"kind":"person","name":"Lancaster David E","position":1,"cik":"0001540524","reported_name":"Lancaster David E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Employee Stock Option","published_at":"2020-02-24T13:23:31.000Z","date":"2020-02-21","kind":"exercise","acquired":false,"shares":15000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The employee stock options were fully vested on February 22, 2014."}],"balance_after":0,"derivative":{"exercise_price":9,"expiration_date":"2020-02-21","underlying":"Common Stock","underlying_shares":15000},"source":{"system":"sec-edgar","filing":"0001520006-20-000028","document":"wf-form4_158255059430607.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1520006/000152000620000028/wf-form4_158255059430607.xml","form_type":"4"}},{"id":3252222,"issuer":{"id":3681,"kind":"organization","name":"Matador Resources Co"},"owners":[{"id":129246,"kind":"person","name":"Lancaster David E","position":1,"cik":"0001540524","reported_name":"Lancaster David E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Common Stock","published_at":"2020-02-24T13:23:31.000Z","date":"2020-02-21","kind":"tax_withholding","acquired":false,"shares":10681,"price":12.64,"value":135007.84,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the Issuer in connection with the reporting person's net share settlement to satisfy the exercise price for 15,000 employee stock options that were granted to the reporting person on February 22, 2010. No shares were sold by the reporting person to satisfy the exercise price or the tax liability."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 14,226 shares of restricted stock granted to the reporting person on February 16, 2018 that vest on the third anniversary of the date of grant."}],"balance_after":377794,"source":{"system":"sec-edgar","filing":"0001520006-20-000028","document":"wf-form4_158255059430607.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1520006/000152000620000028/wf-form4_158255059430607.xml","form_type":"4"}},{"id":3252221,"issuer":{"id":3681,"kind":"organization","name":"Matador Resources Co"},"owners":[{"id":129246,"kind":"person","name":"Lancaster David E","position":1,"cik":"0001540524","reported_name":"Lancaster David E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Common Stock","published_at":"2020-02-24T13:23:31.000Z","date":"2020-02-21","kind":"exercise","acquired":true,"shares":15000,"price":9,"value":135000.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 14,226 shares of restricted stock granted to the reporting person on February 16, 2018 that vest on the third anniversary of the date of grant."}],"balance_after":388475,"source":{"system":"sec-edgar","filing":"0001520006-20-000028","document":"wf-form4_158255059430607.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1520006/000152000620000028/wf-form4_158255059430607.xml","form_type":"4"}},{"id":3266164,"issuer":{"id":3681,"kind":"organization","name":"Matador Resources Co"},"owners":[{"id":129246,"kind":"person","name":"Lancaster David E","position":1,"cik":"0001540524","reported_name":"Lancaster David E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Phantom Units","published_at":"2020-02-19T02:04:33.000Z","date":"2020-02-13","kind":"exercise","acquired":false,"shares":17951,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each phantom unit is the economic equivalent of one share of the Issuer's common stock.  As required by the terms of the award, upon the February 13, 2020 partial vesting of such award, the reporting person settled the phantom units for cash at a rate of $13.01 per unit based upon the closing price of the Issuer's common stock on such date.  No shares of common stock were issued to nor sold by the reporting person pursuant to this transaction."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The phantom units vest in equal annual installments on the first, second and third anniversaries of the date of grant, February 13, 2019."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The phantom units vest in equal annual installments on the first, second and third anniversaries of the date of grant, February 13, 2019."}],"balance_after":35904,"derivative":{"underlying":"Common Stock","underlying_shares":17951},"source":{"system":"sec-edgar","filing":"0001520006-20-000018","document":"wf-form4_158207785619927.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1520006/000152000620000018/wf-form4_158207785619927.xml","form_type":"4"}},{"id":3442135,"issuer":{"id":3681,"kind":"organization","name":"Matador Resources Co"},"owners":[{"id":129246,"kind":"person","name":"Lancaster David E","position":1,"cik":"0001540524","reported_name":"Lancaster David E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Common Stock","published_at":"2019-08-09T12:05:18.000Z","date":"2019-08-07","kind":"purchase","acquired":true,"shares":1500,"price":14.91,"value":22365.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 28,452 shares of restricted stock granted to the reporting person on February 16, 2018 that vest in equal annual installments on the second and third anniversaries of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 10,596 shares of restricted stock granted to the reporting person on February 15, 2017 that vest on the third anniversary of the date of grant."}],"balance_after":373475,"source":{"system":"sec-edgar","filing":"0001520006-19-000124","document":"wf-form4_156535230024444.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1520006/000152000619000124/wf-form4_156535230024444.xml","form_type":"4"}},{"id":3644895,"issuer":{"id":3681,"kind":"organization","name":"Matador Resources Co"},"owners":[{"id":129246,"kind":"person","name":"Lancaster David E","position":1,"cik":"0001540524","reported_name":"Lancaster David E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Common Stock","published_at":"2019-02-21T02:27:51.000Z","date":"2019-02-19","kind":"tax_withholding","acquired":false,"shares":9785,"price":18.7,"value":182979.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents shares withheld by the Issuer in connection with the reporting person's net share settlement to satisfy tax liability upon the vesting of 24,866 shares of restricted stock that were granted to the reporting person on February 19, 2016. No shares were sold by the reporting person to satisfy this tax liability."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 28,452 shares of restricted stock granted to the reporting person on February 16, 2018 that vest in equal annual installments on the second and third anniversaries of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes 10,596 shares of restricted stock granted to the reporting person on February 15, 2017 that vest on the third anniversary of the date of grant."}],"balance_after":371975,"source":{"system":"sec-edgar","filing":"0001520006-19-000032","document":"wf-form4_155071605721220.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1520006/000152000619000032/wf-form4_155071605721220.xml","form_type":"4"}},{"id":3644894,"issuer":{"id":3681,"kind":"organization","name":"Matador Resources Co"},"owners":[{"id":129246,"kind":"person","name":"Lancaster David E","position":1,"cik":"0001540524","reported_name":"Lancaster David E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Common Stock","published_at":"2019-02-21T02:27:51.000Z","date":"2019-02-16","kind":"tax_withholding","acquired":false,"shares":5598,"price":19.31,"value":108097.38,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the Issuer in connection with the reporting person's net share settlement to satisfy tax liability upon the vesting of 14,225 shares of restricted stock that were granted to the reporting person on February 16, 2018. No shares were sold by the reporting person to satisfy this tax liability."}],"balance_after":381760,"source":{"system":"sec-edgar","filing":"0001520006-19-000032","document":"wf-form4_155071605721220.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1520006/000152000619000032/wf-form4_155071605721220.xml","form_type":"4"}},{"id":3644893,"issuer":{"id":3681,"kind":"organization","name":"Matador Resources Co"},"owners":[{"id":129246,"kind":"person","name":"Lancaster David E","position":1,"cik":"0001540524","reported_name":"Lancaster David E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Common Stock","published_at":"2019-02-21T02:27:51.000Z","date":"2019-02-15","kind":"tax_withholding","acquired":false,"shares":4170,"price":19.31,"value":80522.7,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares withheld by the Issuer in connection with the reporting person's net share settlement to satisfy tax liability upon the vesting of 10,595 shares of restricted stock that were granted to the reporting person on February 15, 2017. No shares were sold by the reporting person to satisfy this tax liability."}],"balance_after":387358,"source":{"system":"sec-edgar","filing":"0001520006-19-000032","document":"wf-form4_155071605721220.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1520006/000152000619000032/wf-form4_155071605721220.xml","form_type":"4"}},{"id":3653291,"issuer":{"id":3681,"kind":"organization","name":"Matador Resources Co"},"owners":[{"id":129246,"kind":"person","name":"Lancaster David E","position":1,"cik":"0001540524","reported_name":"Lancaster David E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Phantom Units","published_at":"2019-02-16T02:08:10.000Z","date":"2019-02-13","kind":"grant","acquired":true,"shares":53855,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each phantom unit is the economic equivalent of one share of common stock of Matador Resources Company."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The phantom units vest in equal annual installments on the first, second and third anniversaries of the date of grant."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The phantom units vest in equal annual installments on the first, second and third anniversaries of the date of grant."}],"balance_after":53855,"derivative":{"underlying":"Common Stock","underlying_shares":53855},"source":{"system":"sec-edgar","filing":"0001520006-19-000015","document":"wf-form4_155028287216045.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1520006/000152000619000015/wf-form4_155028287216045.xml","form_type":"4"}},{"id":3748669,"issuer":{"id":3681,"kind":"organization","name":"Matador Resources Co"},"owners":[{"id":129246,"kind":"person","name":"Lancaster David E","position":1,"cik":"0001540524","reported_name":"Lancaster David E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Common Stock","published_at":"2018-11-29T13:31:42.000Z","date":"2018-11-28","kind":"purchase","acquired":true,"shares":2500,"price":21.88,"value":54700.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $21.87 to $21.89 per share, inclusive. The reporting person shall provide to the Securities and Exchange Commission, the Issuer, or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 42,677 shares of restricted stock granted to the reporting person on February 16, 2018 that vest in equal installments on the first, second and third anniversaries of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 21,191 shares of restricted stock granted to the reporting person on February 15, 2017 that vest in equal installments on the second and third anniversaries of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 24,866 shares of restricted stock granted to the reporting person on February 19, 2016 that vest on the 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grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 24,866 shares of restricted stock granted to the reporting person on February 19, 2016 that vest on the third anniversary of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 1,804 shares of restricted stock granted to the reporting person on April 30, 2015 that vest on the third anniversary of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes 5,342 shares of restricted stock granted to the reporting person on March 7, 2014 that vest on the fourth anniversary of the date of 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the Issuer in connection with the reporting person's net share settlement to satisfy tax liability upon the vesting of 10,595 shares of restricted stock that were granted to the reporting person on February 15, 2017. No shares were sold by the reporting person to satisfy this tax liability."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 21,191 shares of restricted stock granted to the reporting person on February 15, 2017 that vest in equal annual installments on the second and third anniversaries of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 24,866 shares of restricted stock granted to the reporting person on February 19, 2016 that vest on the third anniversary of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 1,804 shares of restricted stock granted to the reporting person on April 30, 2015 that vest on the third anniversary of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes 5,342 shares of restricted stock granted to the reporting person on March 7, 2014 that vest on the fourth anniversary of the date of grant."}],"balance_after":346351,"source":{"system":"sec-edgar","filing":"0001520006-18-000043","document":"wf-form4_151918129618583.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1520006/000152000618000043/wf-form4_151918129618583.xml","form_type":"4"}},{"id":4092170,"issuer":{"id":3681,"kind":"organization","name":"Matador Resources Co"},"owners":[{"id":129246,"kind":"person","name":"Lancaster David E","position":1,"cik":"0001540524","reported_name":"Lancaster David E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Employee Stock Option","published_at":"2018-01-24T02:00:25.000Z","date":"2018-01-02","kind":"exercise","acquired":false,"shares":62500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"The employee stock options vested in two equal biennial installments and were fully vested as of March 8, 2017."}],"balance_after":0,"derivative":{"exercise_price":8.21,"expiration_date":"2018-03-07","underlying":"Common Stock","underlying_shares":62500},"source":{"system":"sec-edgar","filing":"0001520006-18-000014","document":"wf-form4a_151675921165302.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1520006/000152000618000014/wf-form4a_151675921165302.xml","form_type":"4/A","original_submission_date":"2018-01-04"}},{"id":4092169,"issuer":{"id":3681,"kind":"organization","name":"Matador Resources Co"},"owners":[{"id":129246,"kind":"person","name":"Lancaster David E","position":1,"cik":"0001540524","reported_name":"Lancaster David E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Common Stock","published_at":"2018-01-24T02:00:25.000Z","date":"2018-01-02","kind":"tax_withholding","acquired":false,"shares":34641,"price":31.59,"value":1094309.19,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F7","text":"Represents shares withheld by the Issuer in connection with the reporting person's net share settlement to satisfy the exercise price and the tax liability upon the exercise of 62,500 employee stock options that were granted to the reporting person on March 8, 2013. No shares were sold by the reporting person to satisfy the exercise price or the tax liability. The original Form 4 is being amended by this Form 4/A to reduce the number of shares actually withheld by the Issuer and increase the amount of securities beneficially owned following the transaction after final calculation of the resulting tax liability."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 31,786 shares of restricted stock granted to the reporting person on February 15, 2017 that vest in equal annual installments on the first, second and third anniversaries of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 24,866 shares of restricted stock granted to the reporting person on February 19, 2016 that vest on the third anniversary of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 1,804 shares of restricted stock granted to the reporting person on April 30, 2015 that vest on the third anniversary of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 4,375 shares of restricted stock granted to the reporting person on January 21, 2015 that vest on the third anniversary of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes 5,342 shares of restricted stock granted to the reporting person on March 7, 2014 that vest on the fourth anniversary of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Includes 1,903 shares of restricted stock granted to the reporting person on February 11, 2014 that vest on the fourth anniversary of the date of 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the reporting person on February 15, 2017 that vest in equal annual installments on the first, second and third anniversaries of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 24,866 shares of restricted stock granted to the reporting person on February 19, 2016 that vest on the third anniversary of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 1,804 shares of restricted stock granted to the reporting person on April 30, 2015 that vest on the third anniversary of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 4,375 shares of restricted stock granted to the reporting person on January 21, 2015 that vest on the third anniversary of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes 5,342 shares of restricted stock granted to the reporting person on March 7, 2014 that vest on the fourth anniversary of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Includes 1,903 shares of restricted stock granted to the reporting person on February 11, 2014 that vest on the fourth anniversary of the date of grant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F7","text":"Includes 30,000 shares of restricted stock granted to the reporting person on March 8, 2013 that vest on the fourth anniversary of the date of grant."}],"balance_after":295180,"source":{"system":"sec-edgar","filing":"0001520006-17-000060","document":"wf-form4_148738462129236.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1520006/000152000617000060/wf-form4_148738462129236.xml","form_type":"4"}}]}