FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * WALLACE WILLIAM H   2. Issuer Name and Ticker or Trading Symbol ABRAXAS PETROLEUM CORP [AXAS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) VP Operations (Last) (First) (Middle) 18803 MEISNER DRIVE 3. Date of Earliest Transaction (Month/Day/Year) 04/04/2018 (Street) SAN ANTONIO, TX 78258 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Abraxas Petroleum Common Stock 04/01/2018   A   28,539 A $ 2.19 285,349 D   Abraxas Petroleum Common Stock 03/31/2018(1)   P   7,274 (1) A $ 2.2 35,530 I 401-K

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Performance-based Restricted Stock Unit

$ 0 (2)

04/01/2018

M

28,539

(3)

(3)

Abraxas Petroleum Common Stock

28,539 (3)

$ 0

28,539 (3)

D

Employee Stock Option

$ 0.97

03/15/2017

03/15/2026

Abraxas Petroleum Common Stock

197,000

197,000

D

Employee Stock Option

$ 3.16

03/03/2016

03/03/2025

Abraxas Petroleum Common Stock

200,000

200,000

D

Employee Stock Option

$ 3.15

03/11/2015

03/11/2024

Abraxas Petroleum Common Stock

25,000

25,000

D

Employe Stock Option

$ 2.39

05/14/2014

05/14/2023

Abraxas Petroleum Common Stock

23,500

23,500

D

Employee Stock Option

$ 3.74

03/08/2013

03/08/2022

Abraxas Petroleum Common Stockk

11,300

11,300

D

Employee Stock Option

$ 4.72

03/15/2012

03/15/2021

Abraxas Petroleum Common Stock

30,000

30,000

D

Employee Stock Option

$ 2.09

03/16/2011

03/16/2020

Abraxas Common Stock

60,000

60,000

D

Employee Stock Option

$ 1.75

10/05/2010

10/05/2019

Abraxas Petroleum Common Stockk

66,937

66,937

D

Employee Stock Option

$ 0.99

03/17/2010

03/17/2019

Abraxas Petroleum Common Stockk

50,000

50,000

D

Employee Stock Option

$ 3.6

08/28/2011

08/28/2017

Abraxas Petroleum Common Stockk

18,920

18,920

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
WALLACE WILLIAM H 18803 MEISNER DRIVE SAN ANTONIO, TX 78258			VP Operations

Signatures

William H. Wallace		04/04/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	401-K shares acquired as a result of Abraxas Petroleum Corporations safe harbor match for calendar year 2015.
(2)	Each performance-based restricted stock unit (RSU) represents the right to receive, following vesting, up to 200% of one share of Abraxas Petroleum common stock. The resulting number of shares of Abraxas Petroleum common stock acquired upon vesting of the performance based RSU is contingent upon the achievement of pre-established performance metrics, as approved by the Company's Compensation Committee, over a three year period beginning April 1, 2018 and ending April 1, 2021.
(3)	Unless earlier forfeited under the terms of the performance-based RSUs, each performance based vest and converts into no more than 200% of one share of Abraxas Petroleum common stock.

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