Here's the three-month summary of Orioles' pitching prospects. Aside from Kline and Jones, and Bundy's injury, news is pretty good! Most of the Orioles' minor league pitchers are having at least decent seasons. 

I'll be adding at least Vader to this list in the future, as well as the top 2013 draftees.

Delmarva
Branden Kline. Season: 7 GS, 35.1 IP, 5.86 ERA, 1.557 WHIP, 3.6 BB/9, 8.2 K/9.
Still recovering from his broken leg. Last pitched on May 17.

Joshua Hader. Season: 14 GS, 71.2 IP, 2.89 ERA, 1.242 WHIP, 4.6 BB/9, 8.0 K/9
Hader has continued to pitch well, mostly. His last two starts were poor, though. Control seems to be an issue, but he is striking guys out. Has age on his side as well. Definitely a real prospect, but need to bring down the BBs.


Frederick
Zach Davies. Season: 16 GS, 93.1 IP, 3.47 ERA, 1.200 WHIP, 2.3 BB/9, 6.9 K/9
Still getting nice results as a 20-year-old in A+. Worries about his size and stuff notwithstanding, I think he has to be taken seriously. Would like to see more Ks, but he's put together a nice half-season.

Tim Berry. Season: 16 GS, 90.0 IP, 3.70 ERA, 1.289 WHIP, 2.4 BB/9, 7.6 K/9
Had one horrific start (1 IP, 8 ER) and has otherwise pitched very well. Glad to see one of the guys I liked more doing well - helps make up for Bernadina. Could use a few more Ks, but otherwise looking like a solid mid-level pitching prospect.


Bowie
Tyler Wilson. Season (A+): 11 GS, 62.1 IP, 4.48 ERA, 1.316 WHIP, 3.6 BB/9, 6.9 K/9. Season (AA): 6 GS, 30.1 IP, 2.67 ERA, 1.154 WHIP, 3.9 BB/9, 5.9 K/9
Had immense walk problems through his first 5-6 starts at A+, then seemed to solve them and got promoted. Off to a good start at Bowie, but the peripherals suggest he's getting pretty lucky. Needs to reduce BBs and increase Ks to go along with the nice ERA/WHIP.

Eduardo Rodriguez. Season (A+): 14 GS, 85.1 IP, 2.85 ERA, 1.207 WHIP, 2.6 BB/9, 7.0 K/9. Season (AA): 2 GS, 11.0 IP, 4.91 ERA, 1.273 WHIP, 4.1 BB/9, 9.8 KK/9
Pitched very well as a 20-year-old in A+ ball and got a deserved promotion to Bowie. Has had one lousy start and one good one so far. Combined with good scouting reports, he's a top pitching prospect.

Dylan Bundy. Injured.
Fingers crossed, knock on wood, etc. etc.

Mike Wright. Season: 17 GS, 88.2 IP, 3.86 ERA, 1.398 WHIP, 3.1 BB/9, 8.6 K/9
Recovered well from his poor start to the season. Still has occasional poor outings, but numbers for the season look good. Callup option to majors in 2nd half.

Devin Jones. Season (AA only): 15 GS, 77.2 IP, 6.14 ERA, 1.571 WHIP, 3.0 BB/9, 8.3 K/9
I was confused by Jones' early-season promotion to Bowie, and remain confused. Has been hittable and hasn't gotten great results, but the peripherals are still solid. I continue to think he should have been pitching at A+ to start the year, but poor performance is poor performance, even at a challenging level.


Norfolk
Mike Belfiore. Season 24 G, 46.0 IP, 3.91 ERA, 1.522 WHIP, 3.5 BB/9, 10.0 K/9
Pitching reasonable well of late. Has the occasional truly terrible appearance, but seems to have at least partially solved his walk problem. Plenty of Ks is nice to see as well. Definitely a lefty option for Baltimore if Matusz or Patton gets injured (let's hope not).